# LEVEL

level_energy_unit: KEV
level_lifetime_unit: MS
level_comment:
E$it is assumed that the identified activity is for the g.s. 
%A$only the |a decay mode was observed. 
T$from (implants)|a-correlated decay curve (2022Hu12). 
$Deduced S(p)({+205}Ac)=-708 keV {I23} (2022Hu12). This value can be compared to S(p)=-760 keV {I60} (2021Wa16: AME2020) 
$A total of 15 (implants)-|a1-|a2-|a3 correlated decay-chains were observed, thus providing a definite evidence for the identification of {+205}Ac activity, as compared to the previous work reported in 2014Zh03 (Phys. Rev. C 89, 014308 (2014)), where only one correlated event was observed, from which T{-1/2}=20 ms {I+97-9}, E|a=7935 keV {I30} was deduced. In the present experiment, measured E|a=7883 keV {I15} (2022Hu12). 
$Search for proton decay of {+205}Ac was made, but no events could be detected (2022Hu12) 


level_energy_unit: KEV
level_spin_parity: 3+
level_lifetime_unit: MS
level_comment:
T$From |a(t) in 1998Es02. Others: 11 ms {I+9-3} (1998LuZV) and 41 ms {I+56-15} (2014Zh03) 
J$Favored |a decay (E{-|a}=7790 keV {I30}) to {+202}Fr(J|p=3+) and subsequent favored decays to {+198}At(J|p=3+), and {+194}Bi(J|p=3+). 
$E|a=7790 keV {I30} (1998Es02) and 7817 keV {I30} (2014Zh03). Other: 7894 keV {I50} (1998LuZV) 
$Configuration=|p(h{-9/2}{++1})~#|n(f{-5/2}{+-1}){-3+}. 


level_energy_unit: KEV
level_spin_parity: (10-)
level_lifetime_unit: MS
level_lifetime_info: ;ISO=M
level_comment:
E$From 2021Ko07. 
T$From |a(t) in 1998Es02. Other: 46 ms {I+62-17} (1998LuZV). 
J$Favored |a decay (E{-|a}=7750 keV {I20}) to {+202}Fr(J|p=10-) and subsequent favored decays to {+198}At(J|p=10-), and {+194}Bi(J|p=10-). 
$E|a=7750 keV {I20} in 1998Es02 (recommended). Other: 7772 keV {I50} (1998LuZV) 
$Configuration=|p(h{-9/2}{++1})~#|n(i{-13/2}{+-1}){-10-}. 


level_energy_unit: KEV
level_spin_parity: (9/2-)
level_lifetime_unit: MS
level_comment:
T$From 1998Es02; superseded 22 ms +40 -9 (1994Le05). Other: 65 ms {I+32-16} (1998LuZV). 
J$Unhindered |a decay to {+203}Fr(J|p=(9/2-)) and subsequent unhindered decays to {+199}At(J|p=(9/2-)), and to {+195}Bi(J|p=(9/2-)). 
$E|a=7693 keV {I25} form 1998Es02; superseded 7712 keV {I25} (1994Le05). Other: 7734 keV {I50} (1998LuZV) 
$Configuration=(|p h{-9/2}){++1}. The assignment is tentative 


level_energy_unit: KEV
level_spin_parity: (10-)
level_lifetime_unit: MS
level_comment:
$%|e, %|a: gross |b calculations of 1973Ta30 give %|e|?1. From an analogy to the E3 decay in {+204}At, any isomeric decay to the expected 7+ state (see 1994Sc24 and 1992Hu04)is expected to Be<10% 
E$deduced from E|a for the 95-ms and 25-ms states 
J$HF|?1.3 for branch to (10-) level in {+204}Fr 


level_energy_unit: KEV
level_spin_parity: (3+)
level_lifetime_unit: MS
level_comment:
$J|p and decay mode from {+208}Ac Adopted Levels in ENSDF database 
T$measured by 2014Ya19 
$|s(experimental)=3.0 nb {I+12-9} (2014Ya19) 
$E|a=7559 {I21} from |a decay of {+208}Ac (2014Ya19) 


level_energy_unit: KEV
level_spin_parity: (9/2-)
level_lifetime_unit: S
level_comment:
J$assumed a favored |a decay to the {+205}Fr g.s. (J|p=(9/2-)). No E(|a1)- E(|a2) correlations are known. J|p=7/2- is predicted in 1997Mo25 
T$weighted average of 0.10 s {I5} using 7585|a(t) in 1968Va04, 0.091 {I+21-14} using 7581|a(t) in 1994Le05, 0.082 {I+18-13} using 7580|a(t) in 1996Ik01, and 0.098 s {I+59-27} using 7577|a(t) in 2000He17 
$E(|a)=7585 keV {I15} (1968Va04), 7581 keV {I15} (1994Le05), 7580 keV {I50} (1996Ik01), and 7577 keV {I10} (2000He17). 


level_energy_unit: KEV
level_lifetime_unit: S
level_comment:
|e+|b{++} decay has not been observed. Theoretical estimate %|e+%|b{++}|?9 (1997Mo25). 
T from 1968Va04. Other value: 0.335 s {I+64-46} (2000He17). 


level_energy_unit: KEV
level_spin_parity: 9/2-
level_lifetime_unit: S
level_comment:
T$weighted average of 0.25 s 5 (1968Va04) and 0.200 s 29 (2000He17). 
%A$I|e+I|b{++}<0.2 is based on the assumption that log| {Ift}>5.9 for |e decay to the {+211}Ra ground state and therefore is forbidden. Given that {+211}Ac g.s. J|p=9/2- and {+211}Ra g.s. J|p=5/2- then (|e+|b{++}) decay is a 2nd non-unique forbidden transition with log| {Ift}>11 (1998Si17). 
J$ |a decay to {+207}Fr g.s. J|p=9/2- with HF=0.94 (using r{-0}(207Fr)=1.491 {I3} (2011Ko04)). 


level_energy_unit: KEV
level_spin_parity: (7+)
level_lifetime_unit: MS
level_comment:
%A,%EC+%B+$from theoretical partial |b-decay half-life (2019Mo01) 
T$from 2014Ya19. Others: 930 ms{I 50} (1968Va04), 880 ms{I 110} (2000He17). 
J$(7+) if observed |a decay feeds the {+208}Fr 7+ g.s. (HF|?1.9). J({+208}Fr)=7 was determined in 2015Vo05 based on hyperfine spectrum measurement. J=(6) or (7) from a fit to the hyperfine spectrum in 2017Gr18. 
$Configuration [(|ph{-9/2})(|nf{-5/2})]{-J=7} from g=0.711 {I39} (2017Gr18) 
MOMM1$from g factor, measured with reference to g factor=0.920 {I13} for the 17/2 and 21/2 isomers in {+215}Ac, measured as 0.920 {I19} by 1983De08, and adjusted to 0.920 {I13} by 2017Gr18. Uncertainty in the g factor is quadratic addition of statistical uncertainty of 0.013, and systematic uncertainty of 0.037, as given by 2017Gr18. g=0.818 {I15} if g.s. J=6, uncertainty is statistical only. 


level_energy_unit: KEV
level_spin_parity: (7)
level_comment:
MOMM1$from in-gas cell measurement, reported as 4.36 {I5} (stat) {I21} (stat) (2017Fe10) 
$|d<r{+2}>{+212,215}=-0.200 {i7} (stat) {i7} (syst) 


level_energy_unit: KEV
level_spin_parity: 9/2-
level_lifetime_unit: MS
level_comment:
Only |a decay was observed. E|a=7360 keV {I30} (1997Mi03). 
Possible |e decays to 1608.85 (9/2-) and 546.35 (5/2-) levels are expected to be <25% and <0.05%, if log| {Ift}>3.6 and log| {If{+1}t}>8.5, respectively. |b gross theory calculations by 1973Ta30 give T{-1/2}(|b{++})|?50 s, which suggests %(|e+|b{++})|?1.6. 
J Favored |a decay to {+209}Fr g.s. (J{+|p}=9/2-). Also J=(9/2) has been proposed in 2017Fe10, based on direct HFS measurements. Configuration: |p (h{-9/2}{++1}). 
T Weighted average of 731 ms {I17} (2000He17) and 800 ms {I50} (1968Va04). Other: |?1 s (1961Gr42). 
MOMM1$From 2019StZV, 2017Gr18 - in-gas laser ionization and spectroscopy (IGLIS). Also see 2017Fe10. 


level_energy_unit: KEV
level_comment:
E$Other: 634 {I6} from E|a and Q|a. 
J In 2002He29, J|p=(13/2-) is presented for this level in the tentative partial decay scheme of {+213}Ac. 


level_energy_unit: KEV
level_uncertain: ?
level_comment:
E$Proposed in 2002He29 (Fig. 4) for connecting the excited level at 188 (assumed J|p=(21/2-)) with the 634 level (assumed J|p=(13/2-)) through 820.8|g-450|g-cascade. 


level_energy_unit: KEV
level_comment:
E Others: 1887 {I9} or 1882 {I9} - using the E|a, Q(|a), and the isomeric state of {+217}Pa at 1860 keV {I7} or 1855 keV {I6}. 
J Tentative J|p=(21/2-) in 2002He29 


level_energy_unit: KEV
level_spin_parity: (9/2)
level_comment:
MOMM1$from in-gas cell measurement, reported as 3.64 {I5} (stat) {I14} (stat) (2017Fe10) 
$|d<r{+2}>{+213,215}=-0.111 {i6} (stat) {i8} (syst) 


level_energy_unit: KEV
level_spin_parity: (9/2-)
level_lifetime_unit: MS
level_comment:
T$Determined from the 445-450-821-613 |g-gated recoil-|a correlations using the logarithmic time-scale method (2024Lo12) 


level_energy_unit: KEV
level_spin_parity: 5(+)
level_lifetime_unit: S
level_comment:
MOMM1$deduced from {Ig}=0.967 {I20} and J=5 measured in 2017Gr18 with uncertainty deduced by quadratic addition of statistical uncertainty of 0.014 and systematic uncertainty of 0.014 (1|s); other: |m=4.234 {I8} referenced to a calculated value of |m=1.07 of {+227}Ac (2017Gr18). Both values were from in-beam Laser measurements. 
MOME2$from 2016Fe11 and 2017Gr18 with uncertainty deduced by quadratic addition of statistical uncertainty of 0.06 and systematic uncertainty of 0.06. 
$|D<r{+2}>{}=-0.0770 fm{+2} {I10} relative to {+215}Ac (2016Fe11) from isotope shift measurement with uncertainty deduced by quadratic addition of statistical uncertainty of 0.0004 (2|s) and systematic uncertainty of 0.0010 (1|s). 
T$from 1968Va04. Others: 12 s (1961Gr42), 8.6 s {I+50-15} (1979Sc09), and 8.6 s {I+70-27} (2020Zh01). 
J$J from fit of the observed hyperfine spectrum (2017Gr18), |p based on systematics (2017Gr18, 2020Zh01). Proposed configuration=|ph{-9/2}~#|np{-1/2}{+-1} (2017Gr18, 2020Zh01) 
%EC$deduced from the ratio of I|a({+214}Ac) and I|a({+214}Ra) at equilibrium (1968Va04). 


level_energy_unit: KEV
level_spin_parity: 5
level_comment:
MOME2$from in-gas-cell and in-gas-jet laser ionization and spectroscopy (IGLIS) technique; value reported as +0.14 {I6} (stat) {I6} (syst) (2017Fe10) 
MOMM1$from in-gas jet measurement, reported as 4.234 {I3} (stat) {I8} (stat). Other: 4.28 {I4} (stat) {I15} (syst) from in-gas cell measurement (2017Fe10) 
$|d<r{+2}>{+214,215}=-0.078 {i4} (stat) {i10} (syst) 


level_energy_unit: KEV
level_spin_parity: 9/2-
level_lifetime_unit: S
level_comment:
%EC+%B+$ from observation of an 8.70 MeV {I2} |a group assigned to {+215}Ra (1968Va04) 
T$ from 1968Va04. 
J$ favored |a decay (HF=1.3) to {+211}Fr (J|p=9/2-). 


level_energy_unit: KEV
level_spin_parity: (17/2-)
level_lifetime_unit: NS
level_comment:
MOMM1$ 7.74 {I9} from g factor=0.910 {I10} (TDPAD,1983De08). 1989Ra17 (also 2011StZZ) compilation lists 7.82 {I16}. It appears that 1989Ra17 applied upward correction of 1% and doubled the uncertainty, probably based on estimated diamagnetism and Knight shift of 0|+1% by 1983De08 
$ Configuration=|p1h{-9/2}{+7} 


level_energy_unit: KEV
level_spin_parity: (21/2-)
level_lifetime_unit: NS
level_comment:
$ Configuration=|p1h{-9/2}{+7} 
MOMM1$ 9.56 {I11} from g factor=0.910 {I10} (TDPAD,1983De08). 1989Ra17 (also 2011StZZ) compilation lists 9.66 {I20}. It appears that 1989Ra17 applied upward correction of 1% and doubled the uncertainty, probably based on estimated diamagnetism and Knight shift of 0|+1% by 1983De08 


level_energy_unit: KEV
level_energy_info: ;OFF=X;ERR=?
level_spin_parity: (23/2-)
level_comment:
E$ x=50 {I50}, extrapolated from E|g=511 keV in {+211}At, and E|g=265 keV in {+213}Fr. 
$ Configuration=|p1h{-9/2}{+6}~#|p2f{-7/2}{+1} 


level_energy_unit: KEV
level_energy_info: ;OFF=X;ERR=?
level_spin_parity: (29/2+)
level_lifetime_unit: NS
level_comment:
J$ B(E3)(W.u.)=24.7 {I9} is similar to that of the corresponding E3 transition in {+213}Fr, and typical of fast E3 transitions in this region. The strength enhancement of such transitions is due to the coupling with octupole vibrations in the even core nucleus. 
MOMM1$ 14.98 {I15} from g factor=1.033 {I10} (TDPAD,1983De08). 1989Ra17 (also 2011StZZ) compilation lists 15.13 {I30}. It appears that 1989Ra17 applied upward correction of 1% and doubled the uncertainty, probably based on estimated diamagnetism and Knight shift of 0|+1% by 1983De08 
$ Configuration=|p1h{-9/2}{+6}~#|p1i{-13/2}{+1} 


level_energy_unit: KEV
level_spin_parity: 9/2
level_lifetime_unit: S
level_comment:
MOME2$from in-gas-cell and in-gas-jet laser ionization and spectroscopy (IGLIS) technique. Quadrupole moment was determined with reference to +1.74 {I10} for the g.s. of {+227}Ac, measured by 1955Fr26: Phys. Rev. 98, 1514 
$g factor=0.920 {I13} for the 17/2 and 21/2 isomers in {+215}Ac, measured as 0.920 {I19} by 1983De08: Z. Phys. A310, 55, and adjusted to 0.920 {I13} by 2017Gr18. This value was used as reference for ground-state g factor determinations for {+212},{+213},{+214}Ac, and for re-evaluation of g factor for g.s. in {+227}Ac. 
$Uncertainty in quadrupole moment is quadratic addition of statistical uncertainty of 0.08, and systematic uncertainty of 0.06 (2017Gr18). 
J$from fit of the observed hyperfine spectrum (2017Gr18), with proposed dominant configuration of unpaired proton in the |p1h{-9/2} orbital for {+215}Ac ground state 
T$from {+215}Ac Adopted Levels in the ENSDF database (Sep 2013 update) 


level_energy_unit: KEV
level_spin_parity: 9/2
level_comment:
MOME2$from in-gas-cell and in-gas-jet laser ionization and spectroscopy (IGLIS) technique; value reported as +0.04 {I8} (stat) {I6} (syst) (2017Fe10) 
MOMM1$from in-gas jet measurement, reported as 3.625 {I2} (stat) {I7} (stat). Other: 3.64 {I3} (stat) {I14} (syst) from in-gas cell measurement (2017Fe10) 


level_energy_unit: KEV
level_spin_parity: 9/2-
level_lifetime_unit: MS
level_comment:
J$from {+215}Ac Adopted Levels in the ENSDF database (Sept 2013 update) 
T$measured by 2017Su18. This can be compared with 170 ms {I10} in {+215}Ac Adopted Levels in the ENSDF database 


level_energy_unit: KEV
level_spin_parity: (1-)
level_lifetime_unit: US
level_comment:
%EC$%|e+%|b{++}|?7|*10{+-5} from gross |b-decay strength function (1973Ta30). Note that for log| {Ift}>5.9 for a possible 1- to 0+ (g.s.) transition, %|e+%|b{++}<1.0|*10{+-8} 
T$from 2000He17. 1970To18 state that T{-1/2} is the same as T{-1/2}(48 level) within the experimental error. Other: 390 |ms {I60} from 2005Li17. 
$E|a=9052 keV {I10} (2000He17); 9072 keV {I8} (1970To18,1991Ry01) to the ground state of {+212}Fr. 


level_energy_unit: KEV
level_spin_parity: (9-)
level_lifetime_unit: US
level_comment:
%EC$%|e+%|b{++}|?7|*10{+-5} from gross |b-decay strength function (1973Ta30) 
E$unweighted average of Ex=59 {I14} from 2000He17 and Ex=37 {I10} from 1970To18, both calculated by the evaluator, from alpha-particle energy difference for the decay to g.s. from {+216}Ac(441 |ms) and {+216}Ac(440 |ms), corrected for recoil. 
T$weighted average of 443 |ms {I7} and 432 |ms {I17} (2000He17). Others: 0.33 ms {I2} (1970To18); 0.39 ms {I3} (1966Ro12); 390 |ms {I60} from 2005Li17. 
$E|a=9105 keV {I7} (2004Ku24); 9110 keV {I10} (2000He17) and 9108 keV {I5} (1970To18) to the ground state of {+212}Fr. 


level_energy_unit: KEV
level_energy_info: ;OFF=X
level_comment:
E$The strong Ac X-ray shown in the delayed spectrum suggests the existence of a low energy transition to the ground state. 
J$2006PoZX referred to this level as the J|p=(9-) isomeric state. 


level_energy_unit: KEV
level_spin_parity: (1-)
level_lifetime_unit: MS
level_comment:
J$from {+216}Ac Adopted Levels in the ENSDF database (March 2007 update) 
T$measured by 2017Hu08 from |a-decay curve followed for 2.5 ms. This value can be compared with 440 |ms {I16} in {+216}Ac Adopted Levels in the ENSDF database (March 2007 update) 
$Measured E|a=9069 keV {I3} (2017Hu08) emitted by the decay of the ground state of {+216}Ac. This value can be compared with 9064 keV {I10} in {+216}Ac |a decay dataset in the ENSDF database (Jan 2004 update) 


level_energy_unit: KEV
level_spin_parity: 9/2-
level_lifetime_unit: NS
level_comment:
J$favored |a decay to 9/2- g.s. of {+213}Fr, configuration=|ph{-9/2} 
T$from 1985De14 ((rf)|a(t), previous value was 72 ns {I5} in 1981MaYW). Others: 75 ns {I3} (1982GoZU); 111 ns {I7} (1973No09, from (rf)|a(t), previous value was 0.10 |ms {I1} in 1972No06) 
MOMM1$from g factor=+0.85 {I1} (1985De14), from time-differential perturbed |a(|q) measurements (|a-TDPAD) technique. See 1985De14 for discussion on probable admixture in the main |ph{-9/2} g.s. configuration, and on the core-polarization effect. See also 1981MaYW from the same group 
$No |a decays from {+217}Ra or its descendants were observed by 1976No09; upper limit for |e+|b{++} decay was set as 2%. T{-1/2}(|e+|b{++})|?1000 sec from gross |b decay theory calculations of 1973Ta30. Therefore, prediction for |e+|b{++} decay branch is |?6.9|*10{+-9}%. 
$Measured E|a=9650 keV {I10} (1973No09, also 1972No06,1973No02) 
$See 1984Po11 for theoretical calculations of {+5}He cluster-emission probability. 


level_energy_unit: KEV
level_spin_parity: 13/2-
level_comment:
J$660.3, E2 |g to 9/2-; systematics of 13/2- states in neighboring nuclides. Configuration=|ph{-9/2}~#{+216}Ra 2+ 


level_energy_unit: KEV
level_spin_parity: 11/2-
level_comment:
J$670.1, M1+E2 |g to 9/2-; systematics of 11/2- states and shell model suggest configuration={+216}Ra 2+~#|ph{-9/2} 


level_energy_unit: KEV
level_spin_parity: 17/2-
level_comment:
$10780 {I15} |a transition from 1147 and/or 1149 levels to {+213}Fr g.s. 
J$486.4, E2 |g to 13/2-; shell model and analogy to {+215}Fr, configuration={+216}Ra 4+~#|ph{-9/2}. 


level_energy_unit: KEV
level_spin_parity: 15/2-
level_comment:
$10780 {I15} |a transition from 1147 and/or 1149 levels to {+213}Fr g.s. 
J$489, M1(+E2) |g to 13/2-; 478.9, E2 |g to 11/2-; configuration={+216}Ra 4+~#|ph{-9/2}. 
E$note that 1983GoZX (also 1982GoZU) suggested this level at 1019 based on reversed ordering of the 349.0-478.9 |g cascade 
T$see comment on half-life for 1528 level 


level_energy_unit: KEV
level_spin_parity: 19/2-
level_comment:
$11137 {I15} |a (a doublet) from 1498 and/or 1528 levels to {+213}Fr g.s. 
J$351.5, M1+E2 |g to 17/2-; 349.0, E2 |g to 15/2-; configuration={+216}Ra 6+~#|ph{-9/2} 


level_energy_unit: KEV
level_spin_parity: (21/2)-
level_lifetime_unit: NS
level_lifetime_info: ;ERR=LT
level_comment:
$11137 {I15} |a (a doublet) from 1498 and/or 1528 levels to {+213}Fr g.s. 
J$381.8, E2 |g to 17/2-; configuration={+216}Ra 6+~#|ph{-9/2} with some {+216}Ra 8+~#|pf{-7/2} admixture suggested for the 21/2- and 23/2- states by 1985De14 from fast M1 transition between these levels 
T$from |g|g(t) (1985De14). Other: 8 ns {I2} was measured by 1973No02 for the 11130|a from either the 1149 or 1528 level. No level with 8 ns half-life was found by 1985De14, but could not be definitely ruled out either by the authors 


level_energy_unit: KEV
level_spin_parity: (23/2)-
level_lifetime_unit: NS
level_lifetime_info: ;ERR=LT
level_comment:
J$153.8, M1+E2 |g to (21/2)-. Probable configuration={+216}Ra 8+~#|ph{-9/2}. Fast M1 transition to the 21/2- and absence of an E2 transition to the 19/2- state was interpreted by 1985De14 as being due to an admixture of {+216}Ra 8+~#|pf{-7/2} configuration 
T$from |g|g(t) (1985De14) 


level_energy_unit: KEV
level_spin_parity: (29/2)+
level_lifetime_unit: NS
level_lifetime_info: ;ISO=M1
level_comment:
MOMM1$from g factor=+0.347 {I5} (1985De14), from time-differential perturbed |a-angular distribution (|a-TDPAD) technique. See also 1981MaYW from the same group 
$10541 {I1} |a to an 1105 level in {+213}Fr (|a in coincidence with 1105|g in {+213}Fr); 11137 {I15} |a to a 498 level in {+213}Fr (|a in coincidence with 498|g in {+213}Fr); 11625 {I17} |a to {+213}Fr g.s. 
J$96|g, E1+M2 |g to (27/2)-; 220|g, M2 |g to (25/2)-. 1985De14 proposed configuration=|ng{-9/2}{++2}~#|pi{-13/2} and calculated g=0.36 {I1} by using the g factors of -0.31 and 1.18 for |ng{-9/2} and |pi{-13/2} orbitals, respectively, measured for {+215}Ac. 
T$from |g(t) (1985De14). Other measurement: 400 ns {I100} (1973No02) 


level_energy_unit: KEV
level_spin_parity: 9/2-
level_lifetime_unit: NS
level_comment:
T$from Adopted Levels 
$This level decays 100% by |a. E|a=9650 {I10} (1973No09), %I|a=94.8 {I20} (1985De14) observed in the 740-ns isomer decay; {+217}Ac g.s. to {+213}Fr g.s. |a transition 


level_energy_unit: KEV
level_spin_parity: 17/2-
level_comment:
$Observed 10780 {I15} |a transition with I|a=0.27% {I4} was assigned by 1985De14 from 1147 and/or 1149 levels to the {+213}Fr g.s. 


level_energy_unit: KEV
level_spin_parity: 19/2-
level_comment:
$Observed 11137 {I15} |a doublet with I|a=0.46% {I13} was assigned by 1985De14 from 1498 and/or 1528 levels to the {+213}Fr g.s. 
T$see comment for half-life on 1528 level 


level_energy_unit: KEV
level_spin_parity: (21/2)-
level_lifetime_unit: NS
level_lifetime_info: ;ERR=LT
level_comment:
$Observed 11137 {I15} |a doublet with I|a=0.46% {I13} was assigned by 1985De14 from 1498 and/or 1528 levels to the {+213}Fr g.s. 
T$from |g|g(t) (1985De14). Other: 8 ns {I2} was measured by 1973No02 for the 11130|a from either the 1149 or 1528 level. No level with 8 ns half-life was found by 1985De14, but could not be definitely ruled out either by the authors 


level_energy_unit: KEV
level_spin_parity: (29/2)+
level_lifetime_unit: NS
level_lifetime_info: ;ISO=M1
level_comment:
$This level partially decays by three |a transitions (1985De14): E|a=11625 {I17}, I|a=0.12 {I2}, transition to {+213}Fr g.s.; E|a=11137 {I15}, I|a=0.32 {I9}, transition to 498, 7/2- level in {+213}Fr; E|a=10541 {I1} (from E|a=9650 and decay scheme), I|a=4.07 {I16}, transition to 1105, 13/2+ level in {+213}Fr. The |a|g data in 1985De14 revealed (10541|a)(1105|g)- and (11137|a)(498|g)-coincidences 
$g factor from Table 2 in 1985De14, where corrections for diamagnetic and Knight shifts were applied. Note that in authors' level-scheme Figure 12, g=0.345 {I10}. Their previous g=+0.34 {I1} (1981MaYW) 
T$from |g(t) (1985De14). Other measurement: 400 ns {I100} (1973No02) 
$|a(|q) measurements for 10.54-MeV |a from the 2012 level: A{-2}=+0.56 {I3}, A{-4}=+0.24 {I5} (1985De14). See also 1973No02 for |a(|q) measurement 


level_energy_unit: KEV
level_spin_parity: 9/2-
level_lifetime_unit: NS
level_comment:
J,T$from Adopted Levels 
E$it is assumed that 9075|a feeds the g.s. of {+217}Ac, although, this |a could also be from an isomer 


level_energy_unit: KEV
level_energy_info: ;ERR=?
level_comment:
$No gamma transition reported in 1983GoZX and 1982GoZu from this level; E|a=10590 keV from this level to {+213}Fr g.s. reported. This level and its decay by 10590|a is not reported by 1985De14 (See {+217}Ac IT decay dataset). Instead, a 10540|a is placed by 1985De14 from 2013 level to the {+213}Fr g.s. 


level_energy_unit: KEV
level_comment:
E$this level corresponds to 1149 level in 1985De14, as the ordering of the 478.9-349.0 |g cascade is reversed in 1985De14 


level_energy_unit: KEV
level_spin_parity: 25/2-
level_comment:
J$(23/2)- in Adopted Levels 
$E|a=11280 keV to {+213}Fr g.s. This |a is not reported by 1985De14 
T$|?100 ns (1982SaZO) 


level_energy_unit: KEV
level_spin_parity: (1-)
level_lifetime_unit: US
level_comment:
E$From {+218}Ac |a decay. Only the |a-decay mode has been observed. Theoretical partial T{-1/2}=13.1 s for {+218}Ac |e+|b{++} decay (2019Mo01) gives %|e+%|b{++}=8|*10{+-6} 
J$from the systematics of odd-odd nuclides in this mass region, the probable configuration is |ph{-9/2}~#|ng{-9/2}, as proposed in {+209}Bi({+12}C,3n|g). 
T$from |a decay. Weighted average of 0.98 |ms {I12} (2017Su18), 0.96 |ms {I5} (2015Kh09), 1.06 |ms {I9} (1989Mi17), 1.31 |ms {I12} (1989De06) and 1.12 |ms {I11} (1983Sc23). Others: 1.8 |ms {I1} (2019Mi08, from correlated |a decays in {+226}Np and {+222}Pa decay chains, authors also give T{-1/2}=1.5 |ms {I1}); 0.27 |ms {I4} (1970Bo13) seem discrepant values. Note that statistics is poor in 2019Mi08. 


level_energy_unit: KEV
level_energy_info: ;OFF=Y;ERR=?
level_spin_parity: (9-)
level_lifetime_unit: NS
level_lifetime_info: ;ISO=M1
level_comment:
E LEVEL ENERGY HELD FIXED IN LEAST-SQUARES ADJUSTMENT 
E$y=x+z, where z is expected to be less than 100 keV. 
J$from the systematics of neighboring odd-odd nuclides, probable configuration=|ph{-9/2}~#|ng{-9/2} 
T$from delayed component in (122.5|g)(total |g)(t) curve (1994De04). 1994De04 noted that mult(122.5|g)=M1 would give a much shorter half-life for 122.5+x level, and suggested one or more intermediate transitions of <100 keV from the (9-) state to the 122.5+x level. 1994De04 also pointed out contribution from a prompt component in the (122.5|g)(total |g)(t) distribution, which may suggest population of the 122.5+x level by |g rays from higher levels of short half-lives. Half-life of 32 ns is assigned by the evaluators to the 122.5+y, (9-) level, while noting that 1994De04 did not explicitly assign this half-life to the (9-) or any other level, either in their level-scheme Fig. 2 or in the text of their paper. Occurrence of (1-) ground states and (9-) isomers in {+216}Ac; and also in N=129 isotones {+214}At and possibly in {+212}Bi seem to support the assignment of (9-) isomer in {+218}Ac. 


level_energy_unit: KEV
level_energy_info: ;OFF=Y
level_spin_parity: (10-)
level_comment:
J$|DJ=1, 293.6 (M1) |g to 122.5+y, (9-) level; probable configuration=(|ph{-9/2}~#|ni{-11/2})10- ~# 0+ core 


level_energy_unit: KEV
level_energy_info: ;ERR=AP;ERR=?
level_comment:
E$this level may correspond to 122.5+x level from {+209}Bi({+12}C,3n|g) reaction which deexcites by 122.5|g. 


level_energy_unit: KEV
level_energy_info: ;OFF=Y
level_spin_parity: (10-)
level_comment:
J$|DJ=1, M1 |g to (9-). Possible configuration=(|ph{-9/2}|ng{-9/2})8- ~# 2+ (unfavored) 
E$the ordering of the 81-478 cascade is not established experimentally, the ordering given here is preferred by 1994De04 from theoretical considerations 


level_energy_unit: KEV
level_energy_info: ;OFF=Y;ERR=?
level_spin_parity: (9-)
level_lifetime_unit: NS
level_lifetime_info: ;ISO=M1
level_comment:
E$y=x+z, where z is expected to be less than 100 keV. 
T$from delayed component in (122.5|g)(total |g)(t) curve (1994De04). 1994De04 noted that mult(122.5|g)=M1 would give a much shorter half-life for 122.5+x level, and suggested one or more intermediate transitions of <100 keV from the (9-) state to the 122.5+x level. 1994De04 also pointed out contribution from a prompt component in the (122.5|g)(total |g)(t) distribution, which may suggest population of the 122.5+x level by |g rays from higher levels of short half-lives. Half-life of 32 ns is assigned by the evaluators to the 122.5+y, (9-) level, while noting that 1994De04 did not explicitly assign this half-life to the (9-) or any other level, either in their level-scheme Fig. 2 or in the text of their paper. 
E LEVEL ENERGY HELD FIXED IN LEAST-SQUARES ADJUSTMENT 


level_energy_unit: KEV
level_energy_info: ;OFF=Y
level_spin_parity: (10-)
level_comment:
E$the ordering of the 81-478 cascade is not established experimentally, the ordering given here is preferred by 1994De04 from theoretical considerations 
$Configuration=(|ph{-9/2}~#|ng{-9/2})8- ~# 2+ (unfavored) 


level_energy_unit: KEV
level_lifetime_unit: US
level_comment:
T$from 9204|a(t) (2019Ya04) 
$Measured E|a=9204 keV {I25} (2019Ya04) extracted from pile-up traces. 


level_energy_unit: KEV
level_lifetime_unit: US
level_comment:
T$from 9219|a(t) (2023Lu04) 
$Measured E|a=9219 keV {I6} (2023Lu04) extracted from general least-square superpulse fitting algorithm. 


level_energy_unit: KEV
level_spin_parity: 9/2-
level_lifetime_unit: US
level_comment:
$Theoretical estimates of %|e+%|b{++}: |?1|*10{+-6} (1973Ta30), 4.96|*10{+-5} (2019Mo01). 
T$from 1989Mi17 (|a-decay curve, authors' weighted average of 12.8 |ms {I26} for 18030|a, 11.0 |ms {I22} for 9360|a, 11.9 |ms {I33} for 8660|a). Others: 7.6 |ms {I+21-14} (2019Mi08, (Er)-|a{-1}-|a{-2} correlations for 27 decay {+223}Pa|){+219}Ac|){+215}Fr decay chains); 7 |ms {I2} (1970Bo13, |a decay curve). Value from 1989Mi17 is preferred as this has the highest statistics. Value from 2019Mi08 is based on only 27 events. In 1970Bo13, the |a peak from the decay of {+219}Ac was mixed with a shorter-lived (2.3 |ms) activity of {+215}Rn, and according to spectral Fig. 10 in this work, statistics seemed weak. Weighted average of all the three values is 9.5 |ms {I16}. 
J$favored |a decay to g.s. {+215}Fr (J|p=9/2-). Consistent with shell-model prediction of h{-9/2} configuration for the odd proton. 


level_energy_unit: KEV
level_spin_parity: (25/2)+
level_comment:
$B(M1,246.0|g)/B(E2,364.0|g)=0.075 {I4} (1994Cr01) 
$B(E1,133.3|g)/B(E2,364.0|g) in W.u.=0.000072 {I5} (1986Dr07). 


level_energy_unit: KEV
level_spin_parity: (29/2)+
level_comment:
$B(M1,260.5|g)/B(E2,412.3|g)=0.116 {I12} (1994Cr01) 
$B(E1,146.5|g)/B(E2,412.3|g) in W.u.=0.000065 {I15} (1986Dr07). 
$Stretched configuration=|ng{-9/2}{+2}~#|pi{-13/2} (1994Cr01) 


level_energy_unit: KEV
level_spin_parity: (3-)
level_lifetime_unit: MS
level_comment:
J proposed by 1996Li05, based on quadrupole-octupole configurations derived from |p(h9/2) |n(i11/2) subshells. 
T from 1990An19; other: 26.1 ms {I5} (1970Bo13) 
%EC From gross |b-decay strength function (1973Ta30) 


level_energy_unit: KEV
level_spin_parity: (5-)
level_comment:
J HF=5 for |a decay from (5-) parent indicates L=0 |a transition between same configurations (coupling of |p(h9/2) |n(g9/2) subshells) 


level_energy_unit: KEV
level_spin_parity: 1-
level_lifetime_unit: S
level_comment:
$%|a=99 {I1}. Possible |e branching was estimated by 1966Wa23 as 1-2% from I|a(7.13-MeV |a) of {+218}Rn shown in {+222}Ac |a spectrum by 1964Mc21. Theoretical partial T{-1/2}>100 s for {+222}Ac |e+|b{++} decay (2019Mo01) gives (%|e+%|b{++})<5 
J$favored |a decay (HF=2.6) to 1- g.s. of {+218}Fr. 
T$weighted average of 5 s {I1} (1972Es03), 4.2 s {I5} (1958To25) and 5.5 s {I5} (1952Me13). 


level_energy_unit: KEV
level_energy_info: ;OFF=X
level_lifetime_unit: S
level_lifetime_info: ;ISO=M
level_comment:
$%IT|<10 was deduced by 1972Es03 from ratio of I|a values of 4.9-s {+222}Ac and 64-s {+222}Ac. 
$%|e+%|b{++}=0.7 to 2 was deduced by 1972Es03 from the intensities of |a lines from {+218}Rn, {+214}Po and 64-s {+222}Ac. 
$From |a-energy considerations, either of the 4.9-s and 64-s activities could be the g.s., and the other as an isomer. From the number of counts in the |a-spectra recorded in the movable detectors (in the off-wheel position) combined with the spectra recorded by the stationary detectors, 1972Es03 interpreted that the 64-sec state also decays by |g-ray emission, feeding the 4.0-s state, estimating the isomeric decay between 3% and 10%, with the implication that the 64-s state lies higher than the 4.9-s state. 
E$x=9 keV {I20}, deduced from E|a=7008.6 {I20} and 7000 {I20} from the |a decays of the 4.9-s and 64-s activities of {+222}Ac, respectively, both |a transitions populating the g.s. of {+218}Fr. 
J$on the basis of measured production cross-section ratio, 1972Es03 suggested that the 64-s isomeric state has higher spin than that of the 4.9-s g.s. Authors suggested Nilsson assignment of |n13/2[606]~#|p3/2[651], with the 5+ state as the lowest in the multiplet according to the Gallagher-Moszkowski coupling rule. 
T$weighted average of 66 s {I3} (1972Es03), 62 s {I3} (1973Mo07), 60 s {I10} (1982Bo04). Other: 1970GhZY 


level_energy_unit: KEV
level_spin_parity: (5/2-)
level_lifetime_unit: MIN
level_comment:
J$calculations of 1988Le13 predict 3/2 and 5/2 parity doublets at and near the {+223}Ac g.s. 1990Sh15 and 1990Sh16 suggest J|p=5/2-, whereas 1989Ah05 prefer J|p=5/2+ for the g.s. of {+223}Ac. |a|g(|q) results are consistent with J|p=5/2- (1999Sc17). 
T from 1987Mi10. Other value: 2.2 min {I1} (1951Me10). 
%|a: from 1951Me10. 


level_energy_unit: KEV
level_spin_parity: (5/2-)
level_lifetime_unit: NS
level_lifetime_info: ;ERR=LE
level_comment:
J$50.7|g M1+E2 to (5/2-). Low |a hindrance factor (HF=5.1) from {+227}Pa suggests Coriolis mixing with favored (J|p=(5/2-)) ground state. 


level_energy_unit: KEV
level_spin_parity: (0-)
level_lifetime_unit: H
level_comment:
%EC,%A$from |e/|a=10 {I2} (1951Me10). 
%B-$ No |b{+-} branch observed; %|b{+-}<1.6 from log| {Ift}>5.9 expected for a 0- to 0+ {+224}Th g.s. |b{+-} transition 
J$log| {Ift}=5.9 (1976MiZR) to 1- level in {+224}Ra suggest probable allowed |b{+-} transition; large hindrance factors (or non-observation) of |a transitions to levels in {+220}Fr which are connected by |g transitions implying change of one or two units of spin between these levels; possible K|p=0- bandhead of an octupole band. See also several arguments given in previous Nuclear Data Sheets evaluation (1986Ma45; same arguments in 1997Ar05) where J|p=0- was assigned. Based on theoretical considerations 1988Sh01 deduce J|p=0- or 3- for 3/2 proton and 3/2 neutron coupling with octupole deformation, and 2+ or (2-) with quadrupole deformation only. 
T$weighted average of 2.55 h {I28} (1987Mi10) and 2.9 h {I2} (1951Me10; their previous value |?2.5 h reported in 1948Gh01) 


level_energy_unit: KEV
level_uncertain: ?
level_comment:
E$a level at 66.0 was suggested by 1993Sh07 with 28.8, 49 and 66.0 deexciting |g rays. These |g rays were placed elsewhere by 1994Ah03 


level_energy_unit: KEV
level_spin_parity: (3/2-)
level_lifetime_unit: D
level_comment:
T$from 2012Po14 (from decay curves for |a counting using a planar silicon detector at a defined solid angle and in a nearly 2|p geometry, 4|p|a+|b counting using a windowless CsI spectrometer, and a pressurized proportional counter, gamma-ray counting with an HPGe detector and a NaI(Tl) well detector, followed for 59-141 days; final result is deduced from six detection methods, with consideration of statistical and systematic uncertainties). Previous measurements: 10.0 d {I1} (1950Ha52), 10 d (1947En03) 
$2001Gu33: {+14}C decay mode measurement at the CERN-ISOLDE mass-separator at CERN and nuclear track detector technique; |l({+14}C)/|l(|a)=4.5|*10{+-12} {I14} or partial T{-1/2}({+14}C)=1.9|*10{+17} s {I6} (2001Gu33). 1993Bo26 measured |l({+14}C)/|l(|a)=6.0|*10{+-10} {I13} at CERN-ISOLDE. Hindrance factor as defined in 2001Gu33 is about unity for {+14}C decay of {+225}Ac, much lower than typical hindrance factor of 10-100 for other known cluster decays. This represents a case of a favored cluster decay. Adopted value of %{+14}C decay is the average of the values from 2001Gu33 and 1993Bo26, with corresponding partial T{-1/2}=1.6|*10{+17} s {I4}. 
J$from analogy with neighboring nuclei, expected low-lying levels are 3/2[532] and 3/2[651]; negative parity from E1 character of the 40.09|g from (3/2+) level 


level_energy_unit: KEV
level_spin_parity: (3/2+)
level_lifetime_unit: NS
level_comment:
T$|b(ce for 40|g)(t) in {+225}Ra |b{+-} decay (1985Is03). 
J$115.55|g, M1 from (5/2+); systematics of Nilsson orbitals. 


level_energy_unit: KEV
level_spin_parity: (3/2+)
level_lifetime_unit: NS
level_comment:
$Configuration=|p3/2[651] 
T$|b(ce of 40.0|g)(t) (1985Is03). Other measurements: 1955Pe24, 1955St88. 


level_energy_unit: KEV
level_lifetime_unit: D
level_comment:
T$weighted average of 9.9151 d {I63} from TDCRG, 9.9149 d {I63} TDCRG, 9.942 d {I26} from NaI, and 9.921 d {I24} from HPGe (2023Br08) 


level_energy_unit: KEV
level_lifetime_unit: D
level_comment:
T$weighted average of 9.913 d {I8} from ionization chamber measurement, 9.914 d {I6} from LSC(doubles) and 9.914 d {I7} from LSC(triples) (2024Ga01). 


level_energy_unit: KEV
level_spin_parity: (1)
level_lifetime_unit: H
level_comment:
|a branching was deduced by 1975VaZD; |b and |e branchings have been determined from relative |g intensities measured by 1974Va28 in {+226}Ac |b{+-} and |e decays. The measured radium K x-ray intensity (corrected for radium x rays from {+226}Th |a decay) and theoretical |eK/|e ratios for the {+226}Ac |e decay, measured |b intensity to 230-keV level in {+226}Th for the {+226}Ac |b{+-} decay have been used to calculate the |e/|b{+-} ratio. |e/|b{+-}=62 {I10}/309 {I17} was obtained by the evaluator. 
T measurement of 1987Mi10. Other measurement: 29 h (1952Sk82 in 1964Hy02). 
J |b{+-} and |e decays to 0+ and 2+ levels suggest J|p=0-,1 or 2-. Ratios of ft values for transitions to 0+ and 2+ states are in agreement with Alaga rule for J=K=1. |p=+ was suggested by 1974Va28 from smaller log| {Ift} value for transition to 1- state (6.7 in |e decay) than for those to 0+ and 2+ states (7.6 and 7.9 in |e decay). 


level_energy_unit: KEV
level_spin_parity: (2-)
level_comment:
J the hindrance factor of 7|+4 for |a decay from {+230}Pa, (J|p=2-), indicates that it is probably a favored transition. 


level_energy_unit: KEV
level_spin_parity: 3/2-
level_lifetime_unit: Y
level_comment:
MOMM1,MOME2$optical spectroscopy (1955Fr26). 
%A$from 1970Ki12. Other values: 1.359 {I14} (1974Mo05), 1.45 {I6} (1965Nu03), 1.25 {I2} (1949Pe03), 1939Pe02. 
J$spin from optical spectroscopy (1951To19). Parity from 330|g, M1+E2 from 3/2-. 
$Configuration: |a particle branching in {+231}Pa decay, I|a(exp)=11.0 {I5} agrees well with I|a(theory)=12.1 for 3/2-,3/2[532] (1969La04,1965PoZZ). The theoretical magnetic (|m=1.08) and quadrupole (Q=1.44) moments for 3/2-,3/2[532] coupled to a stable octupole deformation of |e{-3}=0.1 agree well with the experimental values (1988Le13). 
T$weighted average of 21.7728 y {I+29-32} (1967JoZX, calorimetric measurement) and 21.7714 y {I+56-33} (1963Ei10). Others: 21.6 y {I3} (1959Ro51), 21.2 y {I8} (1956Sh43), 21.6 y {I4} (1955To07), 22.0 y {I3} (1950Ho79); these values are in general agreement with the adopted value but much less precise. Their inclusion in the weighted averaging procedure does not alter the recommended value. 


level_energy_unit: KEV
level_spin_parity: 3/2+
level_lifetime_unit: NS
level_comment:
J$27.4|g, E1 to 3/2-; |a|g(|q). 
$Configuration: |a particle branching in {+231}Pa decay, I|a(exp)|?2.5% disagrees with I|a(theory)=11.8 for 3/2+,3/2[651] (1969La04,1965PoZZ). Coriolis mixing with other N=6 Nilsson orbitals probably affects this branching. 
T$from |a|g(t) in {+231}Pa |a decay (1985Is03). Others: 41.0 ns {I11} (1972Ga39), 43.0 ns (1963Su10), 42.0 ns {I10} (1961Br32), 37.0 ns (1956Fo21), 37.0 ns (1953Mo74), 42.0 ns (1953Te08) 


level_energy_unit: KEV
level_spin_parity: 5/2-
level_comment:
J$29.9|g, M1+E2 to 3/2-; 357.1|g, M1+E2 from 7/2-. 
$Configuration: |a particle branching in {+231}Pa decay, I|a(exp)=20.0% {I5} compares well with I|a(theory)=13.3% for 5/2-,3/2[532] (1969La04,1965PoZZ). 


level_energy_unit: KEV
level_spin_parity: 5/2+
level_comment:
J$283.7|g, E1 from 3/2-; 340.7|g, E1+M2 from 7/2-; |a|g(|q). 
$The |a particle branching in {+231}Pa decay, I|a(exp)=25.4% {I5} was used by 1969La04 to normalize theory (1965PoZZ) and experiment for 5/2+,3/2[651] 


level_energy_unit: KEV
level_spin_parity: 7/2-
level_comment:
J$312.9|g, M1+E2 from 7/2-; 255.8|g, E2 from 3/2- 
$Configuration: |a particle branching in {+231}Pa decay, I|a(exp)=1.4% agrees well with I|a(theory)=1.6% for 7/2-,3/2[532] (1969La04,1965PoZZ) 


level_energy_unit: KEV
level_spin_parity: 7/2+
level_comment:
J$38.19|g, M1+E2 to 5/2+; 302.7|g, E1 from 7/2- 
$Configuration: |a particle branching in {+231}Pa decay, I|a(exp)=0.4%, as compared to I|a(theory)=1.4% for 7/2+,3/2[651] (1969La04,1965PoZZ). 


level_energy_unit: KEV
level_spin_parity: 9/2+
level_comment:
J$63.6|g, E2 to 5/2+; 277.2|g, E1+M2 from 7/2- 
$Configuration: |a particle branching in {+231}Pa decay, I|a(exp)=22.8% as compared to I|a(theory)=16.9% for 9/2+,3/2[651] (1969La04,1965PoZZ) 


level_energy_unit: KEV
level_spin_parity: 9/2-
level_comment:
J$96.8|g, E2 to 5/2-; L(p,|a)=5 from 0+ target 
$Configuration: |a particle branching in {+231}Pa decay, I|a(exp)=3.0% agrees well with I|a(theory)=2.5% for 9/2-,3/2[532] (1969La04,1965PoZZ). 


level_energy_unit: KEV
level_spin_parity: (13/2-)
level_comment:
J$144.4|g to 9/2-; 72.7|g to 11/2- 
$Configuration: |a particle branching in {+231}Pa decay, I|a(exp)=0.04% is the same as I|a(theory)=0.04% for 13/2-,3/2[532] (1969La04,1965PoZZ) 


level_energy_unit: KEV
level_spin_parity: (5/2+)
level_comment:
$Level is weakly populated in {+231}Pa |a decay 
J$277.4|g to 3/2+; 258.4|g to 5/2+; 219.9|g to 7/2+. 


level_energy_unit: KEV
level_spin_parity: 3/2-
level_lifetime_unit: PS
level_lifetime_info: ;ERR=LT
level_comment:
J$favored |a transition with HF=2.5 from 3/2-,1/2[530] {+231}Pa state; experimental band decoupling parameter (-2.1) agrees with theoretical value for the 1/2[530] Nilsson orbital. 
T$from |a(ce)(t) in {+231}Pa |a decay (1963Ab04). 


level_energy_unit: KEV
level_spin_parity: 1/2-
level_comment:
J$354.5|g, M1+E2 to 3/2- 
$Configuration: |a particle branching from {+231}Pa decay, I|a(exp)|?1% agrees with I|a(theory)=1.4% for 1/2-,1/2[530] (1969La04,1965PoZZ). 


level_energy_unit: KEV
level_spin_parity: 7/2-
level_comment:
J$260.2|g, M1+E2 to 9/2-; L(p,|a)=3 from 0+ target 
$Configuration: |a particle branching from {+231}Pa decay, I|a(exp)=1.5% as compared to I|a(theory)=2.2% for 7/2-,1/2[530] (1969La04,1965PoZZ). 


level_energy_unit: KEV
level_spin_parity: 5/2+
level_comment:
J$379.4|g, M1(+E2) to 5/2+; 398.1|g to 5/2-; experimental M1 reduced transition probability ratios B(M1)(398|g)/B(M1)(379|g)=0.28 {I3}/1.35 {I4} as compared to theoretical values 0.16/1.1 for J,K|p=5/2,1/2+ (Alaga rule). 
$Configuration: experimental band decoupling parameter (4.6) agrees wit with theoretical value for the 1/2[660] Nilsson orbital (1983Sh16). 


level_energy_unit: KEV
level_spin_parity: (5/2-)
level_comment:
J$438.0|g to 3/2-; 410.3|g to 3/2+; 363.8|g to 7/2-. 
$Configuration: |a particle branching from {+231}Pa decay, I|a(exp)|?0.1% agrees with I|a(theory)=0.17 for 5/2-,1/2[530] (1969La04,1967Po05). 


level_energy_unit: KEV
level_spin_parity: (3/2-,5/2-)
level_comment:
J$501.4|g to 3/2-; 471.3|g to 5/2-; possible 146.9|g to 1/2-; possible |g to 7/2-; log| {Ift}=7.2 from 3/2+ parent 
E$level weakly populated in {+231}Pa |a decay 


level_energy_unit: KEV
level_spin_parity: (3/2+)
level_comment:
E$level weakly populated in {+231}Pa |a decay 
J$510.0|g to 3/2+; 490.7|g to 5/2+; band head of a K|p=3/2+ parity doublet rotational band (1988Le13). Previous assignment to 1/2[660] rotational band by 1988Ma18 is inconsistent with experimental (|a,t) spectroscopic factor. 


level_energy_unit: KEV
level_spin_parity: 3/2+
level_lifetime_unit: NS
level_comment:
T$from |a|g(t) in {+231}Pa |a decay (1985Is03). Others: 41.0 ns {I11} (1972Ga39), 43.0 ns (1963Su10), 42.0 ns {I10} (1961Br32), 37.0 ns (1956Fo21), 37.0 ns (1953Mo74), 42.0 ns (1953Te08) 


level_energy_unit: KEV
level_spin_parity: (9/2-)&(3/2+,5/2+)
level_comment:
$d|s/d|W=2.4 {I5} 
E$doublet with configuration: |p1/2[530] for 9/2-; no configuration given for the second component 


level_energy_unit: KEV
level_spin_parity: 3/2-
level_lifetime_unit: Y
level_comment:
$Re-calculated g factor of the ground state of {+227}Ac by using g factor=0.920 {I13} for the 17/2 and 21/2 isomers in {+215}Ac as reference for {+215}Ac (measured as 0.920 {I19} by 1983De08: Z. Phys. A310, 55, and adjusted to 0.920 {I13} by 2017Gr18), and hyperfine coupling constants for {+227}Ac measured by V. Sonnenschein, Ph.D. thesis, University of Jyvaskyla (2015) (ref. 31 in 2017Gr18). 
$Uncertainty in the g factor is quadratic addition of statistical and systematic uncertainties of 0.012 for each (2017Gr18). 
J,T$from {+227}Ac Adopted Levels in the ENSDF database (Jan 2016 update) 


level_energy_unit: KEV
level_spin_parity: 3+
level_lifetime_unit: H
level_comment:
J J from |b|g(|q) and |b(CP |g)(|q) (1967Bh01); |p from log| {Ift}=9.74 (log| {If{+1u}t}=10.7) in |b{+-} decay to 1- level in {+228}Th 
Configuration=((|p 3/2[651])(|n 3/2[631])), K=3 
T from 1985Sk02. Other: 6.13 h (1931Cu01) 


level_energy_unit: KEV
level_spin_parity: 1-
level_comment:
J log| {Ift}|?7.1 from 0+; ce data consistent with multipolarity(6.28|g)=M2, not consistent with E2, E3, or M3. 
Configuration=((|p 3/2[532])(|n 3/2[631])), K=0 


level_energy_unit: KEV
level_spin_parity: 1-
level_comment:
Configuration=((|p 3/2[532])(|n 3/2[631])), K=0 
E$Based on observing M2 |g to g.s. {Ilogft} also is consistent with the assignment 


level_energy_unit: KEV
level_spin_parity: (1+)
level_lifetime_unit: S
level_comment:
$%|b-delayed fission=1.19|*10{+-6} {I40} from 2001Yu03. 
T$From 1978Gi07. Other measured value: 80 s {I10} (1973Ch24). 
J$log| {Ift} values for |b{+-} transitions to 0+, 1+, 2+, 3- states in {+230}Th suggest J|p=1+. From systematics of proton and neutron Nilsson orbitals, probable configuration is: |p 3/2[651], |n 5/2[633] 


level_energy_unit: KEV
level_spin_parity: 1/2+
level_lifetime_unit: MIN
level_comment:
J$probable configuration=|p1/2[400] from (t,|a) |s data. Also, analogy to |b{+-} decay of {+227}Fr to {+227}Ra, as the g.s. decay of {+231}Ac proceeds through a strong |b transition to the 554.5, (1/2)- level in {+231}Th, with log| {Ift}=5.5, and in {+227}Fr decay to a 675, 1/2- with log| {Ift}=5.7. In both cases, this strong |b transition is interpreted as 1/2+, |p1/2[400], s{-1/2} proton orbit to 1/2-, |n1/2[501], p{-1/2} neutron orbit. 
T$from 1973Ch24, from exponential decay of the strongest |g rays from the decay of {+231}Ac. Other: |?7.5 min (1985Hi02, from |g-decay). 


level_energy_unit: KEV
level_spin_parity: (1+)
level_lifetime_unit: S
level_comment:
%B-$No |b{+-} delayed fission (<10|*10{+-4}%) (1990Me13). 
T$|b{+-}, x-rays, 665.0|g followed (1986Gi08) 
$Assignment: spallation of tungsten followed by mass separation (1986Gi08). Other: 1973Ch24 
J$From Nilsson orbital syst (1972El21), one expects the proton configuration for the g.s. to be 3/2[651] and the neutron configuration to be 7/2[743], 1/2[631], or 5/2[622], resulting in J|p=5-,1+ or 4+, respectively. Other possible proton configurations are: 1/2[400] and 1/2[530]. log| {Ift}'s of |?7 to 1-, 1+, 2+, and 3- levels, require J|p=1+ or 2. From the expected Nilsson orbitals the probable J|p is 1+ with configuration=((|p 3/2[651])(|n 1/2[631]))1+ or configuration=((|p 1/2[400])(|n 1/2[631]))1+. All other couplings will have J|p|>3 for the lower member of the Gallagher-Moszkowski doublets. 


level_energy_unit: KEV
level_spin_parity: (1/2+)
level_lifetime_unit: S
level_comment:
J$|b feeding to the (1/2)- state in {+233}Th suggests J=1/2, 3/2. |p1/2[400] orbital was proposed by 1986Gi08 from analogy to {+231}Ac. 
T$weighted average of 145 s {I10} and 138 s {I18} (1983Ch31). Both measurements used |g-ray decay curves. 


level_energy_unit: KEV
level_lifetime_unit: S
level_comment:
Only |b{+-} decay has been observed. 
T measured by 1986Gi08. 
J|p=(1+) was suggested by 1986Gi08 from analogy to {+230}Ac and {+232}Ac, and from apparent |b feedings to low-spin states in {+234}Th. The 1/2[400] Nilsson state was proposed by 1986Gi08 for {+231}Ac and {+233}Ac. A possible configuration for {+234}Ac could be: (|p 1/2[400], |n 1/2[631]) 1+. 


level_energy_unit: KEV
level_lifetime_unit: MIN
level_comment:
T$single ion tracing of {+236}Ac{+89+}, assuming ground state (2008ChZI,2010Ch19,2012Ch19). 
$%|b=100% on the basis of predicted T{-1/2}(|b)=16 s and T{-1/2}(|a)>10{+20} s (2019Mo01). No measurement available. 


level_energy_unit: KEV
level_spin_parity: 0+
level_lifetime_unit: MS
level_comment:
$ From calculated half-lives (1997Mo25) of 1.98 s for |b decay and 18.2 ms for |a decay, %|e+|b{++}|<1% 
T$ measured by 2010He25 from four events which occurred in the box+PSSD system. 2011AuZY list 2.4 ms {I12} by symmeterizing the value quoted in 2010He25 
$ Production |s=95 pb {I+219-79} for E({+64}Ni)=294 MeV for one event; |s=22 pb {I+20-13} for E({+64}Ni)=288 MeV for three events (2010He25). 
$ Measured E|a=8044 {I30} (2010He25) from decay of {+208}Th; assumed to be a g.s. to g.s. transition 


level_energy_unit: KEV
level_energy_info: ;OFF=X
level_spin_parity: (13/2+)
level_lifetime_unit: MS
level_comment:
$E(|a)=8123 {I25} keV (2010He25) and 8080 keV {I50} (1996Ik01) 
E$given the proposed J|p=(13/2+) this is most likely an isomeric state, based on systematics in neighboring N=119 isotones: {+207}Ra (E=554 keV, 59 ms), {+205}Rn(657 keV, >10 s), {+203}Po (611 keV, 45 s) and {+201}Pb( 629 keV, 60.8 s), thus x |?600 keV {I200}. J|p=(5/2-) would be expected for the ground state from systematics, while J|p=1/2- is predicted in 1997Mo25 
J$E(|a1)=(8123|a,{+209}Th)-E(|a2)(7379|a,{+205}Ra)-E(|a3)(6787|a, {+201}Rn)- E(|a4)(6384|a,{+197}Po) correlations (2010He25) suggest favored |a decays via the chain of J|p=(13/2+) isomers in {+205}Ra, {+201}Rn and {+197}Po. 
T$deduced by 2010He25 by coupling together four events from 2010He25 and two events from 1996Ik01. T{-1/2}=1.9 ms {I+19-7} using the four events in 2010He25 and 3.8 ms {I+69-15} using the two events in 1996Ik01 
CONF$|n(i{-13/2}){+-1}. The assignment is tentative 


level_energy_unit: KEV
level_spin_parity: 0+
level_lifetime_unit: MS
level_comment:
T$From 2010He25. Others: 9 ms {I+17-4} (1995Uu01), 10 ms {I+50-5} (1995Le41). 
|e+|b{++} decay has not been observed. Theoretical estimate %|e+%|b{++}|?1 (1997Mo25). 
Production |s=1.59 nb {i13} for 165 events (2010He25). 
Reduced |a width |d{-|a}{+2}=55 keV 13 (2010He25). 


level_energy_unit: KEV
level_lifetime_unit: MS
level_comment:
E$ observed activity for {+211}Th is assumed to correspond to g.s. 
J$ 5/2- from systematics (2012Au07); 1/2- in theoretical predictions (1997Mo25) 
T$ from |a decay (1995Uu01; also 1995Le15,1995Le41). Theoretically calculated half-lives of 6.6 s for |b decay, and 0.25 s for |a decay (1997Mo25) suggest dominant |a decay mode 


level_energy_unit: KEV
level_spin_parity: (13/2+)
level_lifetime_unit: US
level_comment:
T$from ce(t) (2021Au03). Other 35 |ms {I+32-12} from |a(t) with 4 events. 
$E|a=8045 keV {I15} determined from 4 events (2021Au03) 


level_energy_unit: KEV
level_spin_parity: 0+
level_lifetime_unit: MS
level_comment:
%A$only |a decay has been observed. Other: %|e+%|b{++} branch is predicted to be < 0.3% based on experimental half-life and theoretical |b-decay half-life of 11 s from 2019Mo01. 
T$from implant-|a(t) (2010He25) based on 1430 events. Others: 30 ms {I+20-10} (1980Ve01), 173 ms {I+398-143} (2015De22), 27.8 ms {I+506-110} and 21.5 ms {I+215-72} (2015Ma37). 
$Measured E|a=7809 {I5} (2010He25) from decay of {+212}Th to {+208}Ra; assumed to be a g.s. to g.s. transition. Others: 7830 {I20} (2015De22), 7788 {I30} and 7806 {I30} from decay of two activities in {+216}U (2015Ma37). 


level_energy_unit: KEV
level_spin_parity: 5/2-
level_lifetime_unit: MS
level_comment:
J favored |a decay to 5/2- g.s. of {+209}Ra. Configuration: |n (f{-5/2}{+-1}). 
Only |a decay is reported. Branching for a possible (|e+|b{++}) decay to {+213}Ac is estimated by the evaluator as |?1.4% from T{-1/2}(|e+|b{++})|?10 second, calculated by 1973Ta30 using |b gross theory. E|a=7700 keV {I30} (1997Mi03). 
T Weighted average of 150 ms {I25} (1968Va18 - 7690|a(t)) and 130 ms {I+50-30} (1980Ve01 - 7689|a(t)). 


level_energy_unit: KEV
level_spin_parity: (13/2+)
level_lifetime_unit: US
level_lifetime_info: ;ISO=M
level_comment:
J$ Proposed by 2007Kh22 in analogy of 13/2+ isomeric states in {+205}Po, {+207}Po, {+209}Rn, and {+211}Ra. Configuration: |n (i{-13/2}{+-1}). 
T$From ({+40}Ar,3n|g) - 2021Zh24. Other value 1.3 |ms {I3} (({+54}Cr,5n|g) - reported as 1.4 |ms {I4} in 2007Kh22) is discrepant. The 2021Zh24 value is chosen based on the transition strenghs B(M2)(W.u.) of the 13/2+ isomers for N=123 isotones: 0.0056 {I+6-5} ({+213}Th), 0.0046 {I3} ({+211}Ra) (2013Si17), 0.0043 {I5} ({+209}Rn) (2015Ch30), and 0.0026 {I2} ({+207}Po) (2011Ko04). 


level_energy_unit: KEV
level_spin_parity: (13/2)+
level_lifetime_unit: US
level_lifetime_info: ;ISO=M
level_comment:
T$ Weighted average of measured values: 1.0 |ms {I4} - X-ray(t), 1.7 |ms {I6} - 381|g(t), 2.4 |ms {I16} - 799|g(t) in 2007Kh22. 2007Kh22 report the weighted average value of 1.4 |ms {I4}. 
J$ Proposed by 2007Kh22 in analogy of 13/2+ isomeric states in {+205}Po, {+207}Po, {+209}Rn, and {+211}Ra. 
Production |s=0.16 |mb {I11} and 0.5 |mb {I3} at 47- and 55-MeV excitation energy, respectively (2007Kh22). 


level_energy_unit: KEV
level_spin_parity: (13/2+)
level_lifetime_unit: US
level_lifetime_info: ;ISO=M
level_comment:
T$from (381|g+799|g)(t) (2021Zh24). For individual |g(t): 9.56 |ms {I174} - |g(381)(t) and 8.80 |ms {I140} - |g(799)(t) (2021Zh24). 


level_energy_unit: KEV
level_spin_parity: 0+
level_lifetime_unit: MS
level_comment:
$Only |a decay has been observed. Calculated %|b|?0.3 (2019Mo01). 
T$weighted average of 125 ms {I25} (1968Va18), 80 ms {I10} (1980Ve01), and 96 ms {I30} (1984Sc13). 


level_energy_unit: KEV
level_spin_parity: (8+)
level_lifetime_unit: US
level_lifetime_info: ;ISO=M
level_comment:
T$weighted average of 1.18 |ms {I13} from implant-|a|g(t) (2021Zh24) and 1.24 |ms {I12} from Er-|g(t) (2007Kh22) 
$Possible configuration=|p[1h{-9/2}~#2f{-7/2}] 


level_energy_unit: KEV
level_spin_parity: 8+
level_lifetime_unit: US
level_lifetime_info: ;ISO=M
level_comment:
T$weighted average of 1.18 |ms {I13} from implant-|a|g(t) (2021Zh24) and 1.24 |ms {I12} from Er-|g(t) (2007Kh22) 
$Configuration=|p[1h{-9/2}~#2f{-7/2}] 


level_energy_unit: KEV
level_spin_parity: (1/2-)
level_lifetime_unit: S
level_comment:
$No |e decay observed (<1.5% in 1968Va18). 
T$from 1968Va18. Other: 0.63 s {I+126-21} (2007Le14) 
J$from |a-decay systematics of N=125, J|p=1/2- isotones {+209}Po, {+211}Rn, and {+213}Ra. These nuclei strongly populate a 5/2- g.s., and, 1/2- and 3/2- excited states. The hindrance factors for {+215}Th |a decay are: 7.0 (5/2-), 2.0 (1/2-), and 7.8 (3/2-), using r{-0}({+211}Ra)=1.479, from adjacent even-even nuclei. 
$Expected shell-model configuration=|pp{-1/2} 


level_energy_unit: KEV
level_energy_info: ;OFF=X;ERR=?
level_lifetime_unit: US
level_lifetime_info: ;ISO=M
level_comment:
T$from ({+215}Th implants)|a|g(t) (2021Zh24). Other measured values are: 0.86 |ms {I19} from (implants)|a(861|g(t), and 0.81 |ms {I16} from (implants)|a(561|g(t) (2021Zh24). Comparison is made to T{-1/2}=0.77 |ms {I6} measured by 2005Ku31 (Eur. Phys. Jour. A25, 397) 


level_energy_unit: KEV
level_spin_parity: 0+
level_lifetime_unit: MS
level_comment:
%EC from gross |b-decay strength function (1973Ta30). 1968Va18 report %|e<0.6. log| {Ift}>3.6 gives %|e+%|b{++}<0.2 for any single |e+|b{++} group. 
$E|a=7921 keV {I3}, weighted average of E|a=7923 keV {I5} from 2005Ku31; 7919 keV {I6} from 2001Ha46 and 7911 keV {I8} from 1968Va18. 7922 keV {I10} from 2000He17 is superseded by the value from 2005Ku31. 
T$weighted average of values measured in |a-decay: 26.0 ms {I2} from 2005Ku31, 25.4 ms {I8} from 2001Ha46 and 28 ms {I2} from 1968Va18. OThers: 27.0 ms {I3} and 30 ms {I3} from 2000H317 are superseded by data from 2005Ku31. 


level_energy_unit: KEV
level_spin_parity: 8+
level_lifetime_unit: US
level_comment:
$%|a from 2005Ku31. Other: 5 {I+5-3} from 2001Ha46. %IT=97 {I1} calculated by 1983Hi08 from the observed isomer ratio and comparison with that for {+217}Pa(29/2 level). 
$Configuration=h{-9/2}f{-7/2} 
$E|a=9923 keV {I8}, weighted average of E|a=9930 keV {I10} from 2005Ku31; 9915 keV {I15} from 2001Ha46 and 9912 keV {I20} from 1983Hi08. 9933 keV {I15} from 2000He17 is superseded by the value from 2005Ku31. 
E$from the energy difference for the |a-decay from this level and and the ground state to the {+212}Ra ground state, corrected for recoil. 
J suggested by 1983Hi08 on the basis of systematics of N=126 nuclei ({+210}Po,{+212}Rn,{+214}Ra). Current systematics of Z=90 nuclei (N=132,130,128) and Z=88 nuclei (N=130,128,126,124) confirm the expectation of an 8+ level at |?2 MeV. 
T$weighted average of values measured in |a-decay: 0.135 ms {I4} from 2005Ku31; 0.128 ms {I8} from 2001Ha46 and 0.18 ms {I4} from 1983Hi08. Other: 0.140 ms {I5} from 2000He17 is superseded by data from 2005Ku31. 


level_energy_unit: KEV
level_spin_parity: 11-
level_lifetime_unit: US
level_comment:
$Configuration=h{-9/2}i{-11/2} 
J$suggested by 1983Hi08 on the basis of systematics is an 11- level. Extrapolation from {+210}Po (2849 keV), {+212}Rn (2760 keV) and {+214}Ra (2683 keV) puts the 11- level in {+216}Th at |?2.6 MeV. This extrapolation is again supported by the behavior of the 11- level in Z=88 nuclei ({+218}Ra to {+212}Ra) 


level_energy_unit: KEV
level_spin_parity: (8+)
level_lifetime_unit: US
level_comment:
$%|a from 2005Ku31. Other: 5 {I+5-3} from 2001Ha46. 
E$from adopted levels. Configuration=h{-9/2}f{-7/2} 


level_energy_unit: KEV
level_spin_parity: (11-)
level_lifetime_unit: US
level_comment:
T$weighted averages of 0.57 |ms {I3} from 2005Ku31 and 0.62 |ms {I6} from 2001Ha46 
$Configuration=h{-9/2}i{-11/2} 


level_energy_unit: KEV
level_spin_parity: 8+
level_lifetime_unit: US
level_comment:
E,J$From Adopted Levels of {+216}Th in ENSDF database (2007 update) 
T$others: 120 |ms {I+60-30} and 250 |ms {I+340-90} from Er-|a(t) for decays to excited states in {+212}Ra. 


level_energy_unit: KEV
level_spin_parity: (9/2+)
level_lifetime_unit: MS
level_comment:
$Only the |a decay has been observed. Comparison of theoretical T{-1/2}>100 s for |b decay (1997Mo25) and T{-1/2}=0.252 ms gives %|e<0.0003% 
J$analogy to g.s. J|p in N=127 isotones, {+215}Ra and {+213}Rn 
T$from (evaporation residues (Er))|a correlated or from |a decays. The value is unweighted average of 0.259 ms {I12} (2015Kh09, from Er-9269|a decay); 0.257 ms {I2} (2005Ku31, Er-9269|a decay); 0.237 ms {I2} (2002He29, average of 0.237 ms {I1}, 0.229 ms {I6}, 0.245 ms {I6} from 9261|a, 8725|a and 8455|a, respectively); 0.248 ms {I3} (2000He17, average of 0.247 ms {I3}, 0.293 ms {I28}, 0.250 ms {I8} from 9268|a, 8731|a and 8459|a, respectively); 0.261 ms {I+22-18} (2000Ni02, average of 0.261 ms {I+22-18}, 0.29 ms {I+24-9}, 0.21 ms {I+10-5} from 9247|a, 8713|a and 8429|a, respectively); 0.252 ms {I7} (1973Ha32, from decay of 9250|a). Weighted average is 0.248 ms {I4} but with reduced |h{+2} of 10.4. If the seemingly discrepant value of 0.237 ms {I2} from 2002He29 is omitted from the averaging procedure, weighted average is 0.254 ms {I2} with acceptable reduced |h{+2}=1.7, as compared to critical |h{+2}=2.4 at 95% confidence level. Others: 0.230 ms {I106} (2009QiZZ), 0.310 ms {I70} (2005Li17, from 9250|a); <0.3 ms (1968Va18, from 9250|a) 
$The main |a transition observed at E|a=9269 {I9} (2005Ku31), 9261 {I5} (2002He29), 9268 {I10} (2000He17), 9247 {I15} (2000Ni02), 9250 {I20} (1973Ha32), 9250 {I10} (1968Va18). Non-observation of (9269|a)|g-coin (2005Ku31) is consistent with 9269|a being a ground-state to ground-state transition 


level_energy_unit: KEV
level_spin_parity: (15/2-)
level_lifetime_unit: NS
level_lifetime_info: ;ISO=M1
level_comment:
J$(E3) |g to (9/2+); analogy to isomeric states in {+213}Rn and {+215}Ra 
T$from |g(t) and ce(t) (1989Dr02) 


level_energy_unit: KEV
level_energy_info: ;OFF=X;ERR=?
level_spin_parity: (25/2+)
level_lifetime_unit: US
level_lifetime_info: ;ISO=M2
level_comment:
E$x<110 keV, see comment in the |g-table 
T$from (evaporation residues)|g|a correlations for three |g rays (2005Ku31, average of 64 |ms {I+64-22}, 69 |ms {I+32-17} and 66 |ms {I+27-15} for 309|g, 673|g and 1269|g, respectively). 


level_energy_unit: KEV
level_energy_info: ;OFF=X;ERR=?
level_spin_parity: (25/2+)
level_lifetime_unit: US
level_lifetime_info: ;ISO=M2
level_comment:
E$x<110 keV, see comment in the |g-table 
T$from (evaporation residues)|g|a correlations for three |g rays (2005Ku31, average of 64 |ms {I+64-22}, 69 |ms {I+32-17} and 66 |ms {I+27-15} for 309|g, 673|g and 1269|g, respectively). Other: 20 |ms {I5} (2003MuZV, from decay curve for summed 673|g+1270|g) 


level_energy_unit: KEV
level_spin_parity: (9/2+)
level_lifetime_unit: US
level_comment:
J$from Adopted Levels of {+217}Th in ENSDF database (2018 update) 
T$from time correlation between evaporation residue (Er) and the subsequent |a decay to g.s. in {+213}Ra (2019Zh54). 


level_energy_unit: KEV
level_spin_parity: 0+
level_lifetime_unit: NS
level_comment:
$Only the |a decay has been observed. Theoretical partial T{-1/2}>100 s for {+218}Th |e+|b{++} decay (2019Mo01) gives %|e+%|b{++}<1.2|*10{+-7} 
T$from decay curve for g.s. to g.s. 9666|a. Weighted average (NRM) of 122 ns {I8} (1973Ha32); 96 ns {I7} (1973No09,1973Hi06); 125 ns {I5} (1982Ch29); 0.16 |ms {I4} (2015Kh09); and 169 ns {I+73-40} (2018Br13). Regular weighted average is 117 ns {I7}, with reduced |h{+2} of 3.7 as compared to critical |h{+2}=2.4. Weighted average is 125 ns {I5} if the lowest value of 96 ns from 1973Hi06 is omitted. 
$Configuration=|p(h{-9/2}{+6}f{-7/2}{+2})~#|ng{-9/2}{+2} with 14% probability (2020Od01) 


level_energy_unit: KEV
level_spin_parity: 2+
level_comment:
J$E2 |g to 0+ 
$Configuration=|p(h{-9/2}{+6}f{-7/2}{+2})~#|ng{-9/2}{+2} with 25% probability (2020Od01) 


level_energy_unit: KEV
level_spin_parity: (3-)
level_comment:
J$|DJ=(1) |g to 2+ 
$Configuration=|ph{-9/2}{+8}~#|n(g{-9/2}{+1}j{-15/2}{+1}) with 26% probability (2020Od01) 


level_energy_unit: KEV
level_spin_parity: 4+
level_comment:
J$E2 |g to 2+ 
$Configuration=|p(h{-9/2}{+6}f{-7/2}{+2})~#|ng{-9/2}{+2} with 28% probability (2020Od01) 


level_energy_unit: KEV
level_spin_parity: 6+
level_comment:
J$E2 |g to 4+, yrast band member 
$Configuration=|p(h{-9/2}{+6}f{-7/2}{+2})~#|ng{-9/2}{+2} with 28% probability (2020Od01) 


level_energy_unit: KEV
level_spin_parity: 8+
level_lifetime_unit: NS
level_comment:
T$from ce(t) in {+209}Bi({+14}N,5n|g) 
J$E2 |g to 6+, yrast band member 
$Configuration=|p(h{-9/2}{+6}f{-7/2}{+2})~#|ng{-9/2}{+2} with 28% probability (2020Od01) 


level_energy_unit: KEV
level_spin_parity: 10+
level_lifetime_unit: NS
level_comment:
T$from ce(t) in {+209}Bi({+14}N,5n|g) 
J$E2 |g to 8+, yrast band member 
$Configuration=|p(h{-9/2}{+6}f{-7/2}{+2})~#|n(i{-11/2}{+1}g{-9/2}{+1} with 26% probability (2020Od01) 


level_energy_unit: KEV
level_spin_parity: (11-)
level_comment:
J$|DJ=(1), (E1) |g to 10+; shell-model prediction (2020Od01) 
$Configuration=|ph{-9/2}{+8}~#|n(g{-9/2}{+1}j{-15/2}{+1}) with 32% probability (2020Od01) 


level_energy_unit: KEV
level_spin_parity: (13-)
level_comment:
J$|DJ=(2) |g to (11-); band member; shell-model prediction (2020Od01) 
$Configuration=|p(h{-9/2}{+6}i{-13/2}{+2})~#|n(g{-9/2}{+1}j{-15/2}{+1}) with 31% probability (2020Od01) 


level_energy_unit: KEV
level_spin_parity: (15-)
level_comment:
J$|DJ=(2) |g to (13-); band member; shell-model prediction (2020Od01) 
$Configuration=|p(h{-9/2}{+6}i{-13/2}{+2})~#|n(g{-9/2}{+1}j{-15/2}{+1}) with 37% probability (2020Od01) 


level_energy_unit: KEV
level_spin_parity: (16+)
level_comment:
J$|DJ=1, (E1) transition to (15-); shell-model prediction (2020Od01) 
$Configuration=|p(h{-9/2}{+7}f{-7/2}{+1})~#|ng{-9/2}{+2} with 42% probability (2020Od01) 


level_energy_unit: KEV
level_spin_parity: 8+
level_lifetime_unit: NS
level_comment:
T$1.3 ns {I4} (690ce(t)); 1.3 ns {I3} (504ce(t)); 1.0 ns {I2} (370ce(t)); 1.3 ns {I1} (202ce(t)) (1985Bo32). 


level_energy_unit: KEV
level_spin_parity: 0+
level_lifetime_unit: NS
level_comment:
T$from Adopted Levels. 2015Kh09 measured 0.16 |ms {I4}, in agreement with the Adopted value, but the uncertainty is large. 


level_energy_unit: KEV
level_spin_parity: 10+
level_comment:
$Configuration=|p(h{-9/2}{+6}f{-7/2}{+2})~#|n(i{-11/2}{+1}g{-9/2}{+1} with 26% probability (2020Od01) 


level_energy_unit: KEV
level_spin_parity: (13-)
level_comment:
$Configuration=|p(h{-9/2}{+6}i{-13/2}{+2})~#|n(g{-9/2}{+1}j{-15/2}{+1}) with 31% probability (2020Od01) 


level_energy_unit: KEV
level_spin_parity: (15-)
level_comment:
$Configuration=|p(h{-9/2}{+6}i{-13/2}{+2})~#|n(g{-9/2}{+1}j{-15/2}{+1}) with 37% probability (2020Od01) 


level_energy_unit: KEV
level_lifetime_unit: NS
level_comment:
T$from 9697|a(t) (2023Lu04) 
$Measured E|a=9697 keV {I10} (2023Lu04) extracted from general least-square superpulse fitting algorithm. 


level_energy_unit: KEV
level_spin_parity: (9/2+)
level_lifetime_unit: US
level_comment:
$%|e+%|b{++}|?1|*10{+-7} (1973Ta30, theory); 3.8|*10{+-6} (2019Mo01, theory). 
T$weighted average of 0.90 |ms {I18} (2020Ma27, Er-|a correlations using SHANS separator at HRIFL-Lanzhou); 0.94 |ms {I+21-15} (2020Su02, Er-|a correlations using SHANS separator at HRIFL-Lanzhou); 1.24 |ms {I+68-32} (2019Zh54, Er-|a correlations using SHANS separator at HRIFL-Lanzhou); 1.03 |ms {I3} (2019Ya04, Er-|a correlations using SHANS separator at HRIFL-Lanzhou); 0.94 |ms {I8} (2018Br13, Er-|a correlated decay curve); 1.09 |ms {I8} (2017Su18, Er-|a-correlated decay curve fitted to a single exponential); 0.97 |ms {I4} (2015Kh09, fitting of the (Er)-|a correlated decay curve for the |a peak from {+219}Th decay to a single exponential); 1.1 |ms {I1} (2006Pe17, (Er)-|a correlated decay curve); and 1.05 |ms {I3} (1973Ha32, |a-decay curve). Note that 2020Ma27, 2020Su02, 2019Zh54, 2019Ya04 and 2017Su18 are from the same lab, but different experiments were performed, using either different reactions, or different optimum mass setting or beam energy if the same reaction was used. 
J$from systematics of N=129 isotones from {+211}Pb to {+217}Ra, and comparison of g.s. J|p values of N=127 and N|>131 Th isotopes with corresponding Ra isotopes. Configuration=|ng{-9/2}{+3}, seniority=1 state 


level_energy_unit: KEV
level_spin_parity: (7/2+)
level_comment:
J$favored |a decay (HF=1.0 {I3}) from (7/2+) {+223}U parent. 2020Su02 suggested (7/2+,11/2+), based on systematics of low-lying levels in N=129 isotones. Evaluators prefer (7/2+) as (11/2+) is assigned to the 362.5 level 


level_energy_unit: KEV
level_spin_parity: (7/2+)
level_comment:
$2020Su02 suggested J|p=(7/2+,11/2+), based on systematics of low-lying levels in N=129 isotones. Evaluators prefer (7/2+) as, in the Adopted dataset, (11/2+) is assigned to the 362.5 level. Also, (7/2+) is suggested by favored |a decay from (7/2+) parent. 


level_energy_unit: KEV
level_lifetime_unit: US
level_comment:
T$from 9320|a(t) (2019Ya04) 
$Measured E|a=9320 keV {I24} (2019Ya04) extracted from pile-up traces. 


level_energy_unit: KEV
level_lifetime_unit: US
level_comment:
T$from 9339|a(t) (2023Lu04) 
$Measured E|a=9339 keV {I6} (2023Lu04) extracted from general least-square superpulse fitting algorithm. 


level_energy_unit: KEV
level_spin_parity: 0+
level_lifetime_unit: US
level_comment:
T From 1973Ha32. Other value: 10.5 |ms {I38} (2006Pe17). 
%EC From gross |b-decay strength function (1973Ta30). 1973HaWU report %|a>90 but basis not given. From log| {Ift}>3.6 one gets a limit of <1|*10{+-5}% for I(|e+|b{++}) to any single level in {+220}Ac 


level_energy_unit: KEV
level_spin_parity: 2+
level_comment:
E$from E|g. E|a=8095 {I11} feeding this level gives level energy of 391 {I14}. The energies of the 2+ to 0+ and 4+ to 2+ transitions in {+220}Th were previously assigned as 373.3 keV {I1} keV and and 386.5 keV {I1} (2006Re15), respectively. Based on the observation of (8095|a)(386.5|g)-coin, and on the energy of 8095|a group relative to that of 8479|a, 2014Lo10 suggest that previous assignment is incorrect, and that the ordering of the 373.3- and 386.5-keV transitions should be reversed, thus defining 386.5 keV as the first excited 2+ state in {+220}Th 


level_energy_unit: KEV
level_spin_parity: (7/2+)
level_lifetime_unit: MS
level_comment:
Only |a decay was observed. From gross |b{+-} decay theory of 1973Ta30 one estimates %|e+%|b{++}<1.0|*10{+-4} 
See 1985Po14 for calculated half-lives for decays by multiple heavy-ion emission; see 1973Ta30 for calculated T{-1/2}(|e decay). 
T$Weighted average of 1.68 ms {i6}, 1.8 ms {i3}, 1.9 ms {i1}, 2.0 ms +3-2 and 1.73 ms {i3}, 2.3 ms 4 measured by 1970To07, 1970Va13, 1993AnZS, 2000He17, 2001Ko07, and 2005Li17, respectively. 
J suggested by 1988Le13 from analogy to {+219}Ra. Reflection- asymmetric rotor core-particle coupling calculations of 1988Le13 showed that the |w=1/2 orbital (of i13/2 shell) at |b{-2}=|b{-3}=0.1 deformation reproduces a 7/2+ ground state when strong Coriolis couplings between the K=1/2, 3/2 and 5/2 orbitals are considered, and a large decoupling parameter (a|?-2) is used. 


level_energy_unit: KEV
level_spin_parity: (7/2+)
level_lifetime_unit: MS
level_comment:
J$from Adopted Levels of {+221}Th in ENSDF database 
T$obtained from a new alpha transition from {+221}Th decay E|a=8243 keV. It is possible that this |a peak is the same as the weak 8265 keV {I10} alpha group reported in 1990An10: Zeit. Phys. A 337, 229 


level_energy_unit: KEV
level_lifetime_unit: US
level_comment:
T$from 8152|a(t) (2019Ya04) 
$Measured E|a=8152 keV {I17} and E|a=8461 keV {I19} (2019Ya04) extracted from pile-up traces. 


level_energy_unit: KEV
level_spin_parity: 0+
level_lifetime_unit: MS
level_comment:
$%|e<1.3|*10{+-8}, estimated by evaluators from a possible |e branch to {+222}Ac g.s., with log| {Ift}>5.9. Theoretical partial T{-1/2}>100 s for {+222}Th |e decay (2019Mo01) gives %|e<0.002, and theoretical partial T{-1/2}|?8|*10{++4} s of 1973Ta30 gives %|e|?3|*10{+-6}. 
T$from 2016Pa28 (recoil-|a decay, authors used the RITU separator and measured |a|g-coin and E|a). Others: 2.3 ms {I+8-5} (2018Mi11); 2.4 ms {I3} (2005Li17), 2.237 ms {I13} (2001Ku07, recoil-|a decay curve), 2.0 ms {I1} (2000He17), 4.2 ms {I5} (1999Ho28), 2.2 ms {I2} (1991AnZZ), 2.8 ms {I3} (1970Va13), 4 ms {I1} (1970To07). Precise values from 2001Ku07 (conference report), and 1999Ho28 are in severe disagreement with that from 2016Pa28, the former differing by |?20 standard deviations, and the latter larger by a factor of two. The three measurements (2016Pa28, 2001Ku07, 1999Ho28) are from the same laboratory, with several of the same authors. For this reason, values from 2001Ku07 and 1999Ho28 are not considered in the averaging procedure. Other values agree with the adopted value within about two |s, but are too imprecise to be considered in the averaging procedure. 


level_energy_unit: KEV
level_spin_parity: (1-)
level_comment:
E$from E|a and Q(|a) 
J$proposed by 2000He17, based on systematics of 1- states in neighboring nuclei 


level_energy_unit: KEV
level_spin_parity: 2+
level_lifetime_unit: PS
level_comment:
E$from E|a=7387 {I7} for decay to the 2+ level, and Q(|a)=7701 {I4} for the decay of {+226}U. Other: 182.9 {I2} in the Adopted Levels. 
J,T$from the Adopted Levels 


level_energy_unit: KEV
level_spin_parity: (1-)
level_comment:
E$from E|a=7323 {I20} for decay to the (1-) level, and Q(|a)=7701 {I4} for the decay of {+226}U. 
J$proposed by 2000He17, based on systematics of 1- states in neighboring nuclei 


level_energy_unit: KEV
level_spin_parity: (5/2)+
level_lifetime_unit: S
level_comment:
T from {+223}Th |a decay (1987El02). Other values: 0.66 s {I1} (1970Va13), 0.9 s {I1} (1958To25). 
J$favored |a decay (HF=2.3) to 140 level (J|p=(5/2)+) in {+219}Ra. J|p=5/2+, theoretically predicted in 1987Sh24 using a static quadrupole-octupole deformation. 


level_energy_unit: KEV
level_spin_parity: (7/2)+
level_comment:
J$exp |d(51.3|g)=0.21 {I1} agrees with a calculated value of 0.21 for J|p=7/2+ and the octupole single-particle assigned configuration (1988Le13). 


level_energy_unit: KEV
level_energy_info: ;ERR=?
level_uncertain: ?
level_comment:
E$470 keV for reversed ordering of the 146-77 |g|g cascade. This tentative level is discussed in authors' text 


level_energy_unit: KEV
level_spin_parity: 0+
level_lifetime_unit: S
level_comment:
T$weighted average of 0.812 s {I99} (2000He17 from |a decay), 1.05 s {I2} (1978IbZZ), 1.03 s {I5} (1970Va13, from |a decay curve), 1.05 s {I5} (1958To25, detection of integral |a particles with pulsed beam) 


level_energy_unit: KEV
level_spin_parity: 1-
level_uncertain: ?
level_comment:
E,J$from Adopted Levels. 1986Sc12 list 246 keV {I5}, but this level is probably not populated in this reaction 


level_energy_unit: KEV
level_lifetime_unit: MEV
level_comment:
E$average of 10.3, 11.2 and 11.0 MeV (1987Th07). Value is |?10 MeV in 1992Di03 
T$average of 4.0, 4.2 and 5.0 MeV (1987Th07) 


level_energy_unit: KEV
level_spin_parity: (3/2+)
level_lifetime_unit: MIN
level_comment:
J $Assumed to be same as that of the ground state of 223Ra, measured in 1983Ah03 and 1986Sh02. Assignment supported by measurements in 1989Ac01 and theoretical calculations in 1989Cw03, 1985Na07, 1984Le04, 1982Le19. 


level_energy_unit: KEV
level_energy_info: ;OFF=X
level_spin_parity: (5/2+)
level_comment:
E $Adjustment of energies of (5/2+) and (9/2+) states under the constraint that the difference between their energies must remain constant (103 keV) yielded x=31 keV. 


level_energy_unit: KEV
level_energy_info: ;OFF=X+103.5;ERR=?
level_spin_parity: (9/2+)
level_comment:
E $Adjustment of energies of (5/2+) and (9/2+) states under the constraint that the difference between their energies must remain constant (103 keV) yielded E(9/2+)=135 keV. 


level_energy_unit: KEV
level_spin_parity: 4+
level_comment:
J intensity balance at 226.43-keV level suggests that 154.23|g to 2+ level is E2; |a hindrance factor is consistent with J|p=4+ of the g.s. band. 


level_energy_unit: KEV
level_spin_parity: 3-
level_comment:
J intensity balance at the 307.5 level in {+230}U |a decay suggests that 81.0 and 235.3 |g's to 4+ and 2+ levels are E1. 


level_energy_unit: KEV
level_spin_parity: (0+)
level_comment:
J in analogy to 831.7-keV, 0+ level in {+228}Th, 1976Ku08 proposed J|p=0+. |g transition to 1- state, hindrance factor |?8 for the |a transition from {+230}U and log| {Ift}=8.9 {I1} for the |b{+-} decay J=(1) {+226}Ac are consistent with this assignment. 


level_energy_unit: KEV
level_spin_parity: (2+)
level_comment:
J log| {Ift} for |b{+-} decay from J=(1) {+226}Ac and |g to 3- level limit J|p to 1-, 2+. Intensity ratio of photons deexciting 847.8-keV level is in agreement with the Alaga rule for K=0, J=2. 


level_energy_unit: KEV
level_spin_parity: (1/2+)
level_lifetime_unit: D
level_comment:
$Evaluated rms charge radius=5.740 fm {I17} (2013An02) 
T$recommended by 2015Co11 from their measurements of 18.695 d {I4} (decay-curves of 50.1|g, 236.0|g and 300.0|g emissions) and 18.683 d {I20} (from in-growth of {+223}Ra using an ionization chamber); and 18.7176 d {I180} (1967JoZX, original uncertainty of 0.0052 inflated to 0.0180 by 2015Co11). Power-moderated averaging proposed by S. Pomme and J. Keightley, Metrologia 52, S200 (2015) was used by 2015Co11 to deduce the recommended value. Others: 18.738 d {I54} (1987Mi10), 18.729 d {I48} (1963Ei10), 18.169 d {I84} (1954Ha60), 18.6 d {I1} (1949Pe08). The value from 1987Mi10 is omitted in the averaging procedure by 2015Co11, since correction for the presence of {+223}Ac was not accounted for in their measurement. Values in 1963Ei10 and 1954Ha60 are superseded by that in 1967JoZX. 
J$|a|g(|q) results from various authors are in disagreement: |a-79|g(|q) and |a-350|g(|q) suggest J|p=1/2+ (1991Jo05). This conclusion is consistent with the isotropic correlation results of 1990Br23 and 1960Pe13 for |a-236|g(|q), also suggesting J|p=1/2+. 1972He18 measured an anisotropic correlation, and 1990Br23 measured |g-ray anisotropy in |a 236|g(|q,H) correlation with oriented nuclei. Both of these results suggest J|p=3/2+. In a nuclear orientation experiment with {+227}Th at low temperature, 1997Mu08 found the angular distribution of the three main |a groups from {+227}Th to be isotropic. This result suggests J=1/2 for {+227}Th g.s. Also, they suggested to be in error previous experiments that showed |g-ray anisotropies. Low |a hindrance factor (HF=5.9) to 286 level (J|p=1/2+) in {+223}Ra is consistent with J|p=1/2+,3/2. {+225}Ra isotone ground state has J|p=1/2+. The same assignment for {+227}Th is consistent with band structure in this nucleus and has been suggested by 1988Le13. 


level_energy_unit: KEV
level_comment:
$A 294.6-keV |g ray, reported from {+227}Pa |e decay, feeds a 252.4-keV level that was not adopted. 


level_energy_unit: KEV
level_spin_parity: (1/2-)
level_uncertain: ?
level_comment:
E$the existence of this level is uncertain. It is connected by a |g ray to a 142-keV proposed level, which has been shown to be inconsistent with |a-|g coin results from {+231}U |a decay (1997Mu08). Evaluators have not adopted the 67.2-keV level. 


level_energy_unit: KEV
level_spin_parity: (9/2+)
level_uncertain: ?
level_comment:
E$this level is inconsistent with experimental results from {+231}U |a decay (1997Mu08). Evaluators have not adopted the 82-keV level. 


level_energy_unit: KEV
level_spin_parity: (3/2+,5/2+)
level_comment:
J$7/2- proposed by 1995Li04 is inconsistent with E1 multipolarity, determined from {+231}U |a decay, for the 61.4-keV |g ray (1997Mu08). 


level_energy_unit: KEV
level_spin_parity: (3/2+,5/2+)
level_comment:
$A 49.7-keV (dashed, tentative) |g ray is shown to deexcite this level in the decay scheme of 1995Li04. This |g ray, however, is neither listed in their main table, nor shown in any |g-ray spectra of 1995Li04. 
J$(5/2+) proposed in 1995Li04 


level_energy_unit: KEV
level_uncertain: ?
level_comment:
E$the existence of this level is inconsistent with the observation of 64.4- and 74.7-keV |g rays in coincidence with 5370-5425 keV |a particles from {+231}U |a decay (1997Mu08). Decay by 64.4|g E1 to 77.6 keV, 3/2+ level and by 118.0|g M1 to 24.3 keV, 3/2+ level suggested by authors is not possible. Evaluators have not adopted this level. 


level_energy_unit: KEV
level_spin_parity: (1/2-,3/2-,5/2-)
level_comment:
$1995Li04 showed an |e decay scheme with a 42-keV (dashed, tentative) |g ray deexciting this level. Such a |g ray, however, is not listed in their main table nor shown in any spectra presented by 1995Li04. 
J$(5/2-) proposed in 1995Li04. 


level_energy_unit: KEV
level_spin_parity: (7/2+)
level_uncertain: ?
level_comment:
E$the existence of this level is uncertain because of its decay to the also uncertain level at 82 keV. Evaluators have not adopted this level. 


level_energy_unit: KEV
level_spin_parity: (7/2-)
level_uncertain: ?
level_comment:
E$the existence of this level, proposed by 1995Li04, is questionable. The level is deexcited by a 124.8-keV |g ray (shown only in the decay scheme, not given in any table, nor displayed on any spectra), and by a 68.4-keV |g ray (which also deexcites the 77.7-keV level). Evaluators have not adopted the 252-keV level. 


level_energy_unit: KEV
level_spin_parity: (1/2+)
level_lifetime_unit: D
level_comment:
T$from the Adopted Levels 
J$1/2 from isotropic angular distribution of three main alpha groups following {+227}Th decay in low temperature nuclear orientation experiment (1997Mu08). 


level_energy_unit: KEV
level_uncertain: ?
level_comment:
J$proposed as 9/2+ member of K|p=1/2+ rotational band (1997Mu08). This contradicts assignment by 2002Ha30 in {+226}Ra(|a,3n|g) where the 76.2-keV level was assigned as the 9/2+ member. 


level_energy_unit: KEV
level_lifetime_unit: D
level_comment:
T$from 2019Ko06, taken as the weighted average of 18.679 d {I9} from liquid scintillation counting and 18.695 d {I21} from ionization chamber measurements. 


level_energy_unit: KEV
level_spin_parity: 0+
level_lifetime_unit: Y
level_comment:
%{+20}O=1.13|*10{+-11} {I22} (1993Bo20) 
T value (698.2 d {I6}) recommended by 1991BaZS; based on measurements from 1971Jo14, 1962Ma57, 1956Ki16 (tropical year (365.24220 days) used in conversion). Others: 1.912 y {I2} (recommended value, 1990Ho28), 1.906 y (1918Me01). 
Isotope shift: |D<r{+2}>=-0.413 {I5} relative to {+232}Th (1989Ka29) 


level_energy_unit: KEV
level_spin_parity: 4+
level_lifetime_unit: NS
level_comment:
J$L(p,t)=4 for even-even nucleus; E2 |g to 2+ level; member of g.s. rotational band 
T from {+232}U |a decay 


level_energy_unit: KEV
level_spin_parity: (13-)
level_comment:
E$ Tentative in (|a,2n|g), but |s's to 11- and 12+ are consistent with data 
J |g's to 11- and 12+ levels; band structure 


level_energy_unit: KEV
level_spin_parity: (14+)
level_comment:
E$Shown tentative in (|a,2n|g), which deexcites by E|g=357.2 keV to 12+ state. 
J |g to (12+); member of g.s. band 


level_energy_unit: KEV
level_spin_parity: 4-
level_comment:
J$multiple |g's to 4-, 2-, and 5; (E2)+M1 |g to 3- level; |g(|q,H,t) excludes J|p=3-,5- (log {Ift}=7.57 {I6} 1998Wi13) 


level_energy_unit: KEV
level_spin_parity: (2+)
level_comment:
E the level may be questionable, Q(|b{+-})({+228}Ac)=2127 {I3}. 
J |g's to 4+ and 1- levels; log {Ift}=4.9 {I5} indicates an allowed transition 


level_energy_unit: KEV
level_spin_parity: 2+
level_comment:
J$ 0 or 2 from |gs to 0+ and 2+ levels in g.s. and 1- and 3- levels of the octupole band (1987Da28) 


level_energy_unit: KEV
level_spin_parity: 4+
level_comment:
J$E2 and M1 |gs K{+|p}=2{++} band (1987Da28). |g-ray to 1- level supports 3+ rather than 4+ (1987Da28) 


level_energy_unit: KEV
level_spin_parity: 2+
level_comment:
Quasiparticle configuration=((|p 3/2+[651])(|p 1/2+[660])) or configuration=((|p 3/2+[651])(|p 1/2+[400])) suggested for this level 
J$|gs to 0+ and 4+ levels of the g.s. (1987Da28) 


level_energy_unit: KEV
level_spin_parity: (2+)
level_comment:
Quasiparticle configuration=((|p 3/2[651])(|p 1/2[660])) or configuration=((|p 3/2[651])(|p 1/2[400])) suggested for this level 
J$|gs to 0+ and 4+ levels of g.s. (1987Da28) 


level_energy_unit: KEV
level_spin_parity: (2+)
level_comment:
1987Da28 suggests that this is the 4+ level of K|p=2+ rotational band built on the 1900.0 level. However, the relatively strong 887.33|g to the 1123-keV level would then have M2 mult. 


level_energy_unit: KEV
level_spin_parity: 3-
level_comment:
J$|gs to 1-, 2-, 3-, and 5- levels, member of a rotational band 
E$energy sequence suggests that levels at 944.2, 968.4, 1016.4, 1060, 1143 keV are the 1-, 2-, 3-, 4-, and 5- members of the K{+|p}=1{+-} band 


level_energy_unit: KEV
level_spin_parity: 4-
level_comment:
J$|g to 3-, and 4- levels, member of a rotational band (1998We13). 3-,4+,5- ruled out by |g(|q,H,t) (1995Ba42) 


level_energy_unit: KEV
level_spin_parity: 2-
level_uncertain: ?
level_comment:
E$ This level was proposed in {+228}Ac decay and possibly fed by the 389.36|g from the 1928.6 level. However, the |g's shown as deexciting this level in {+228}Ac decay have either not been reported (416.30|g) or placed elsewhere in level scheme (1142.85|g). 1995Ba42 suggests that the existence of this level is doubtful. 


level_energy_unit: KEV
level_spin_parity: 2+
level_lifetime_unit: NS
level_comment:
T weighted average of 0.409 ns {I10} (1970To08) and 0.402 ns {I10} (1965Ne03); other: 0.40 ns {I3} (1960Be25) 


level_energy_unit: KEV
level_spin_parity: 0+
level_comment:
$|s(expt.)/|s(calc.){-CHUCK3}=6.20 
$R(7.5|'/16|')=5.83. R(26|'/16|')=5.61. |s(integral)=165.56 |mb 
$(d|s/d|W){-expt}/(d|s/d|W){-CHUCK3}(2004Wi06)=100.0 


level_energy_unit: KEV
level_spin_parity: 0+
level_comment:
$|s(expt.)/|s(calc.){-CHUCK3}=360 
$R(7.5|'/16|')=12.06. R(26|'/16|')=7.5. |s(integral)=39.1 |mb 
$(d|s/d|W){-expt}/(d|s/d|W){-CHUCK3}(2004Wi06)=28.9 


level_energy_unit: KEV
level_spin_parity: 0+
level_comment:
$|s(expt.)/|s(calc.){-CHUCK3}=8.20 
$R(7.5|'/16|')=18.38. R(26|'/16|')=7.21. |s(integral)=6.83 |mb 
$(d|s/d|W){-expt}/(d|s/d|W){-CHUCK3}(2004Wi06)=7.8 


level_energy_unit: KEV
level_spin_parity: 0+
level_comment:
$|s(expt.)/|s(calc.){-CHUCK3}=0.04 
$R(7.5|'/16|')=2.63. R(26|'/16|')=3.71. |s(integral)=1.24 |mb 
$(d|s/d|W){-expt}/(d|s/d|W){-CHUCK3}(2004Wi06)=0.3 


level_energy_unit: KEV
level_spin_parity: 2+
level_comment:
$|s(expt.)/|s(calc.){-CHUCK3}=140 
E$Probably 1160 keV reported in 1972Ma15 
$R(7.5|'/16|')=0.65. R(26|'/16|')=0.49. |s(integral)=23.89 |mb 


level_energy_unit: KEV
level_spin_parity: 0+
level_comment:
$|s(expt.)/|s(calc.){-CHUCK3}=1.10 
$R(7.5|'/16|')=7.96. R(26|'/16|')=6.96. |s(integral)=2.13 |mb 
$(d|s/d|W){-expt}/(d|s/d|W){-CHUCK3}(2004Wi06)=1.0 


level_energy_unit: KEV
level_spin_parity: 0+&3+
level_comment:
$|s(expt.)/|s(calc.){-CHUCK3}=2.60 
E,L$ this group is likely a doublet, mixed with a weak component. |s(|q) calculations for the composite peak fit 0+ and 3+ 
$R(7.5|'/16|')=2.21. R(26|'/16|')=0.83. |s(integral)=0.47 |mb 
$ |s(expt.)/|s(calc.)=0.02 for 3+ component 


level_energy_unit: KEV
level_spin_parity: 0+
level_comment:
$|s(expt.)/|s(calc.){-CHUCK3}=10.0 
$R(7.5|'/16|')=7.44. R(26|'/16|')=5.21. |s(integral)=9.66 |mb 
$(d|s/d|W){-expt}/(d|s/d|W){-CHUCK3}(2004Wi06)=4.9 


level_energy_unit: KEV
level_spin_parity: 0+
level_comment:
$|s(expt.)/|s(calc.){-CHUCK3}=0.75 
$R(7.5|'/16|')=2.66. R(26|'/16|')=2.06. |s(integral)=1.26 |mb 
$(d|s/d|W){-expt}/(d|s/d|W){-CHUCK3}(2004Wi06)=0.4 


level_energy_unit: KEV
level_spin_parity: (6+)
level_comment:
$|s(expt.)/|s(calc.){-CHUCK3}=0.06 
$R(7.5|'/16|')=0.65. R(26|'/16|')=1.19. |s(integral)=1.28 |mb F 


level_energy_unit: KEV
level_spin_parity: 0+
level_comment:
$|s(expt.)/|s(calc.){-CHUCK3}=3.10 
$R(7.5|'/16|')=9.22. R(26|'/16|')=4.56. |s(integral)=0.57 |mb 
$(d|s/d|W){-expt}/(d|s/d|W){-CHUCK3}(2004Wi06)=0.4 


level_energy_unit: KEV
level_spin_parity: 0+
level_comment:
$|s(expt.)/|s(calc.){-CHUCK3}=25.9 
$R(7.5|'/16|')=17.08. R(26|'/16|')=13.13. |s(integral)=4.62 |mb 
$(d|s/d|W){-expt}/(d|s/d|W){-CHUCK3}(2004Wi06)=2.1 


level_energy_unit: KEV
level_spin_parity: 0+
level_comment:
$|s(expt.)/|s(calc.){-CHUCK3}=120 
$R(7.5|'/16|')=6.84. R(26|'/16|')=4.53. |s(integral)=24.8 |mb 
$(d|s/d|W){-expt}/(d|s/d|W){-CHUCK3}(2004Wi06)=11.8 


level_energy_unit: KEV
level_spin_parity: 0+
level_comment:
$|s(expt.)/|s(calc.){-CHUCK3}=8.10 
$R(7.5|'/16|')=3.78. R(26|'/16|')=1.54. |s(integral)=1.18 |mb 
$(d|s/d|W){-expt}/(d|s/d|W){-CHUCK3}(2004Wi06)=0.7 


level_energy_unit: KEV
level_spin_parity: 0+
level_comment:
$|s(expt.)/|s(calc.){-CHUCK3}=61.0 
$R(7.5|'/16|')=9.96. R(26|'/16|')=5.75. |s(integral)=11.0 |mb 
$(d|s/d|W){-expt}/(d|s/d|W){-CHUCK3}(2004Wi06)=5.9 


level_energy_unit: KEV
level_spin_parity: (4+,0+)
level_comment:
$|s(expt.)/|s(calc.){-CHUCK3}=370 
$R(7.5|'/16|')=2.13. R(26|'/16|')=1.65. |s(integral)=17.1 |mb for 4+ 
$|s(integral)=4.50 |mb, |s(expt.)/|s(calc.)=25.0 for 0+ 


level_energy_unit: KEV
level_spin_parity: (13-)
level_uncertain: ?
level_comment:
E shown as tentative by authors, but |g's to 11- and 12+ are consistent with adopted data from (|a,2n|g) 


level_energy_unit: KEV
level_energy_info: ;ERR=?
level_spin_parity: 1-
level_lifetime_unit: PS
level_comment:
T$from |g|g(|Dt) with 795-328 keV |g-ray combination (2020Ch51). Others: T{-1/2}|<3.466 ps for the 795-270 keV |g-ray combination (2020Ch51). 


level_energy_unit: KEV
level_spin_parity: 5/2+
level_lifetime_unit: Y
level_comment:
T From 1989Go19. Measured specific activity with mass spectrometry. This value is about 7% larger than 7340 y {I160} reported in 1950Ha52. This latter value is relative to T{-1/2}({+233}U)=1.62|*10{+5} y, which is about 2% larger than the current accepted value of T{-1/2}({+233}U)=1.592|*10{+5} y (2005Si15). The remaining discrepancy of about 5% may be due to an underestimation of the effect of impurities, such as {+228}Th. 
J Measured spin (1964Eg01). Orbital assignment is from measured |m value. See 1972El21 and 1976Ga35 for calculations. 
Optical spectroscopy (1974Ge06,1989Ra17,2005St24). See also 1964Eg01 and 1964To02. 
Optical spectroscopy (1974Ge06,1989Ra17,2005St24). See also 1964Eg01. 


level_energy_unit: KEV
level_spin_parity: (3/2+)
level_comment:
E From precise energy measurement of low-energy |g rays from {+233}U |a decay (2007Be16). Other value: 0.0035 keV 10 (1994He08). 
J 71.812|g from (7/2+) state is E2. (d,t) data suggest the possible existence of a very low-energy state practically degenerate with the ground state (2008Bu14). 


level_energy_unit: KEV
level_spin_parity: 7/2+
level_lifetime_unit: NS
level_comment:
T from 1970To12 (by (|a)(ce)(t)). Other value: <1.9 ns (1967Tr07) 
J 42.4349|g M1+E2 to 5/2+ g.s.; Low alpha hindrance factor from {+233}U |a decay suggest same 5/2[633] configuration. 


level_energy_unit: KEV
level_spin_parity: (9/2+)
level_comment:
See also 424.01 (T{-1/2}=190 ps {I8}) and 425.33 (T{-1/2}=290 ps {I48}) populated in {+229}Ac |b{+-} decay, but de-excited by different |g rays. A 424.1-keV level (L=1) is populated in {+230}Th(d,t). 


level_energy_unit: KEV
level_spin_parity: (7/2+,9/2+)
level_lifetime_unit: PS
level_lifetime_info: ;ERR=LE
level_comment:
T From 2006Ru07. 
A 479.1-keV (L=2) level is populated in {+230}Th(d,t). Possible 3/2+ or 5/2+ member of a K|p=1/2+ band, and a 480 keV 5 level in Coulomb Excitation. 


level_energy_unit: KEV
level_spin_parity: 5/2+,7/2+
level_comment:
J 562|g M1+E2 to 7/2+, 605|g M1+E2 to 5/2+. 
A 611 keV 5 (9/2-) level is populated in Coulomb Excitation. 


level_energy_unit: KEV
level_spin_parity: (5/2+,7/2,9/2+)
level_comment:
See 638.48-keV level populated in {+229}Ac |b{+-} decay, but de-excited by different |g rays. Also 638.3-keV level populated with L=1 in {+230}Th(d,t). 


level_energy_unit: KEV
level_spin_parity: 5/2-
level_lifetime_unit: PS
level_comment:
T$Weighted average of 336 ps {I10} (2002Gu15) and 329 ps {I8} (2006Ru07) 
E$146.3530 {I11} (2002Gu15) 


level_energy_unit: KEV
level_spin_parity: (3/2+)
level_comment:
E LEVEL ENERGY HELD FIXED IN LEAST-SQUARES ADJUSTMENT 
E From precise energy measurement of low-energy |g rays from {+233}U |a decay (2007Be16). Other value: 0.0035 keV 10 (1994He08). 


level_energy_unit: KEV
level_spin_parity: 7/2+
level_lifetime_unit: NS
level_comment:
E LEVEL ENERGY HELD FIXED IN LEAST-SQUARES ADJUSTMENT 
E$From 42.4349 keV 2 |g ray to ground state (2007Be16) 


level_energy_unit: KEV
level_spin_parity: (7/2+)
level_comment:
E LEVEL ENERGY HELD FIXED IN LEAST-SQUARES ADJUSTMENT 
E$From 29.3911 keV 4 |g ray to 42.4349-keV level, and 42.6333 keV 2 |g ray to 29.1927-keV level (2007Be16). 


level_energy_unit: KEV
level_spin_parity: 5/2+
level_comment:
E$ measured value=0.0 {I1}. This group is possibly a doublet: g.s. + 7.6 eV. "Fingerprint" method of cross sections gives some evidence of presence of doublet within a few keV of g.s. 
$ d|s/d|W=32 |mb/sr {I1} for g.s.+7.6 eV level 
L,S$ combined for 0+0.0076 levels 


level_energy_unit: KEV
level_spin_parity: 3/2+
level_comment:
E$Possibly forms a doublet with the g.s. 2007Be16 measured a value of 7.6 eV 5. 
L,S$ combined for 0+0.0076 levels 


level_energy_unit: KEV
level_energy_info: ;ERR=?
level_spin_parity: 5/2+
level_comment:
E$ energy (rounded value from Adopted Levels) used for calibration purpose. 
$ d|s/d|W=280 |mb/sr {I9} 


level_energy_unit: KEV
level_spin_parity: 7/2+
level_comment:
$ d|s/d|W=7 |mb/sr {I2} 
L$ uncertain assignment due to poor L=4 DWBA fit of |s(|q) distribution, which shows larger cross sections at forward angles than predicted 


level_energy_unit: KEV
level_spin_parity: 11/2+&3/2-
level_comment:
E$ doublet, L=1 component is very weak 
S$ for L=6. s=0.0030 {I4} for L=1 
$ d|s/d|W=34 |mb/sr {I3} 


level_energy_unit: KEV
level_spin_parity: (7/2+)
level_comment:
E$ the 7/2+ member of 5/2[622] configuration may be at 365 keV 
L$ |s(|q) distribution is shown, but expected L=4 is not conclusive from the DWBA fit. 
$ d|s/d|W=15 |mb/sr {I2} 


level_energy_unit: KEV
level_spin_parity: 1/2-,3/2-
level_comment:
E$ 1/2[501] and/or 3/2[501] bands. There are several levels known near this energy. The association of most of these levels with 424.1 from (d,t) can be ruled out based on the L assignment in (d,t) data, imcluding possible interpretation of octupole vibration built on 3/2[631] configuration 
$ d|s/d|W=446 |mb/sr {I14} 


level_energy_unit: KEV
level_spin_parity: 5/2-&(3/2-)
level_comment:
E,J$ doublet. The 3/2- member of 1/2[501] band is either 571.2 or 586.3 
S$ for L=1. s=0.14 {I2} for L=3 
$ d|s/d|W=125 |mb/sr {I8} 


level_energy_unit: KEV
level_spin_parity: (5/2-)
level_comment:
L$ from table 2 of 2008Bu14, |s(|q) distribution not shown in authors' figure 4, it is a weak peak. The distribution plot has been made available to the compiler in e-mail reply by D.G. Burke on June 30, 2008 
$ d|s/d|W=16 |mb/sr {I5} 


level_energy_unit: KEV
level_comment:
L$ from table 2 of 2008Bu14, |s(|q) distribution not shown in authors' figure 4. The distribution plot has been made available to the compiler in e-mail reply by D.G. Burke on June 30, 2008 
$ d|s/d|W=147 |mb/sr {I7} 


level_energy_unit: KEV
level_spin_parity: (3/2+)
level_lifetime_unit: MIN
level_comment:
E$ from 2007Be16. 2009In01 deduced the energy between 3 eV and 7 eV. 
T$ deduced to be between |?1 min and |?3 min (2009In01) from |a decay. 


level_energy_unit: KEV
level_lifetime_unit: H
level_lifetime_info: ;ERR=LT
level_comment:
E$ from 2007Be16 (Phys Rev Lett 98, 142501 (2007)) 
T$ estimate at 3|s confidence level (2009Ki14). No |a events were obtained in the expected energy region and under the chemical environment of chloride or hydroxide. This half-life limit corresponds to energy of the isomer higher than 5 eV 


level_energy_unit: KEV
level_spin_parity: (3/2+)
level_lifetime_unit: US
level_lifetime_info: ;ISO=M
level_comment:
E$from 2010BeZZ (improved value from earlier 7.6 eV {I5} in 2007Be16). Other: 6.3-18.3 eV (2016We07), based on the first and third ionization potentials of thorium atom. 
T$for neutral {+229m}Th, determined from conversion electron measurements as described in 2017Se01 and 2016We07. This half-life is in agreement with the theoretically predicted half-life of 0.4 to 9 |ms (2015Tk01: Phys. Rev. C92, 054324, and Erratum in Phys. Rev. C95, 039902(E) (2017)). For doubly-charged ions i.e. {+229m}Th{+2+}, 2016We07 estimated the half-life as >60 s. For charged states of {+229m}Th, internal conversion process is forbidden due to the first ionization potential of thorium atom at 6.3 eV. 


level_energy_unit: KEV
level_spin_parity: 5/2+
level_lifetime_unit: Y
level_comment:
$|d<r{+2}>({+232}Th,{+229}Th)=0.299 fm{+2} {I15}. 
$|d<r{+2}>({+229m}Th,{+229}Th)=0.0105 fm{+2} {I13}. 


level_energy_unit: KEV
level_spin_parity: 5/2+
level_lifetime_unit: PS
level_comment:
E$weighted average of 29.189961 keV {I6} and 29.189908 keV {I5} from two campaigns where these uncertainties are purely statistical (2019Ma63). Final value includes systematic uncertainty. 
T$weighted average of 84.2 ps {I63} and 80.9 ps {I51} from two campaigns where these uncertainties are purely statistical (2019Ma63). Final value includes systematic uncertainty. 
$|G{-|g}{+cr} = 1.70 neV {I40} (2019Ma63) where |G{-|g}{+cr} is the cross band transition width between ground state and 29-keV level. 


level_energy_unit: KEV
level_spin_parity: 5/2+
level_lifetime_unit: Y
level_comment:
J$ from Adopted Levels for {+229}Th in ENSDF database. 
T$ measured by 2011Ki16 from activity ratio of {+232}U/{+233}U in a {+232,233}U sample and activity ratio of {+228}Th/{+229g}Th which grew out of the {+232,233}U sample; growth time, and known half-lives of {+228}Th, {+232}U and {+233}U 
T$ average of five trials done in the present work (six trials were conduced however, the first excluded from the average due to {+232}U contamination which was removed by extra purification procedures in the latter trials). Value given by 2011Ki16 is given as 7932 y {I55} at a confidence level of 2|s. The compilers use 1|s for uncertainty. 


level_energy_unit: KEV
level_spin_parity: (3/2+)
level_lifetime_unit: US
level_lifetime_info: ;ISO=M
level_comment:
E$from 2019Se13 given as 8.28 eV {I3} (stat) {I16} (syst) with uncertainties added in quadrature. Energy corresponds to a wavelength of 149.7 nm {I31} 


level_energy_unit: KEV
level_spin_parity: 3/2+
level_comment:
E LEVEL ENERGY HELD FIXED IN LEAST-SQUARES ADJUSTMENT 
E$from difference between measured spacing 206.42 eV {I17} of 29.2|g and 29.4|g, and measured spacing 198.33 eV {I22} of 42.4|g and 42.6|g (2020Si22) 


level_energy_unit: KEV
level_spin_parity: 3/2+
level_comment:
E$from difference between measured spacing 206.42 eV {I17} of 29.2|g and 29.4|g, and measured spacing 198.33 eV {I22} of 42.4|g and 42.6|g (2020Si22) 
E LEVEL ENERGY HELD FIXED IN LEAST-SQUARES ADJUSTMENT 


level_energy_unit: KEV
level_spin_parity: 7/2+
level_lifetime_unit: PS
level_comment:
T$from 4783.5|a-42.43|g(t) fitted with a single exponential decay function convoluted with a Gaussian function (2021Sh28) 


level_energy_unit: KEV
level_energy_info: ;ERR=?
level_spin_parity: 7/2+
level_lifetime_unit: PS
level_comment:
T$from 4754|a-71.82|g(t) fitted with a single exponential decay function convoluted with a Gaussian function (2021Sh28) 


level_energy_unit: KEV
level_energy_info: ;ERR=?
level_spin_parity: 9/2+
level_lifetime_unit: PS
level_comment:
T$weighted average of 103 ps {I12} from 4729|a-54.7|g(t) and 88 ps {I9} from 4729|a-97.14|g(t) (2021Sh28) 


level_energy_unit: KEV
level_energy_info: ;ERR=?
level_spin_parity: 11/2+
level_lifetime_unit: PS
level_comment:
T$from 4664|a-66.11|g(t) fitted with a single exponential decay function convoluted with a Gaussian function (2021Sh28). Other: 350 ps {I22} from 4664|a-(64-80 |g)(t) as a check for possible interference from other transitions within the resolution of the LaBr. 


level_energy_unit: KEV
level_energy_info: ;ERR=?
level_spin_parity: 3/2-
level_lifetime_unit: PS
level_comment:
T$from 4662.5|a-164.52|g(t) (2021Sh28) fitted with a single exponential decay function convoluted with a Gaussian function. 


level_energy_unit: KEV
level_spin_parity: (3/2+)
level_lifetime_unit: S
level_comment:
E$from the measured E|g using VUV spectroscopy in 2023Kr02. 
T$from the time evolution of the intensity of E|g measured by implanting the A=229 beam in MgF{-2} in 2023Kr02. The authors of 2023Kr02 stated that the measured T{-1/2} should be considered as a lower limit because of the potential presence of nonradiative decay channels and the measured value should also be corrected for the refractive index ({In}) dependence of the crystal environment. By assuming {In}=1.488, T{-1/2} = 2.21|*10{+3} s can be inferred. 


level_energy_unit: KEV
level_spin_parity: 3/2+
level_comment:
E$from difference in energy required to populate the 29-keV level from the ground state and energy emitted in the decay to the isomeric state (2019Ya19). Reported as 0.00830 {I45} (stat) {I81} (syst) with uncertainty combined in quadrature. Energy for transition to the ground state was taken from T. Masuda, Nature (London) 573, 238 (2019). 


level_energy_unit: KEV
level_spin_parity: 3/2+
level_lifetime_unit: S
level_comment:
E$from central frequency of the nuclear transition calculated from the four-wave mixing. The uncertainty includes statistical and systematic contributions (2024Ti04) 
T$from fluorescence decay curve after resonance excitation for 500 s (2024Ti04). No influence of temperature on the decay curve was observed. 2024Ti04 deduce that the half-life in vacuum for the isomer is 1740 s {I340} based on the refractive index of CaF{-2} at 148.4 nm. 


level_energy_unit: KEV
level_energy_info: ;ERR=?
level_spin_parity: 3/2+
level_lifetime_unit: S
level_comment:
T$from nuclear state selective laser spectroscopy, taking the difference in fluorescence decay rates between the ground state and the isomer (2024Ya11). Value is for isolated {+229m}Th{+3+}. 
MOMM1,MOME2$from measured hyperfine constants (2024Ya11) 
$<r{+2}(229m)> - <r{+2}(229)> = 0.0097 fm {+2} {I26} (2024Ya11) 


level_energy_unit: KEV
level_spin_parity: (3/2+)
level_lifetime_unit: S
level_comment:
E$from E|g. 
T$from the time evolution of VUV signal (2024El03). Value is reported as |t=568 s {I13} (stat) {I20} (syst). 


level_energy_unit: KEV
level_spin_parity: (3/2+)
level_lifetime_unit: S
level_comment:
E$from E|g. 
T$from the time evolution of VUV signal (2024Zh44). 
$Q(isomer)/Q(g.s.)=0.57003 {I1} (2024Zh44) 


level_energy_unit: KEV
level_spin_parity: 0+
level_lifetime_unit: Y
level_comment:
$%{+24}Ne from T{-1/2}({+24}Ne)=1.3|*10{+17} y {I3} (1996Bu05). 
$%SF from T{-1/2}(SF)>2|*10{+18} y (1985TrZY). Value recommended in 2000Ho27. 
$Relative probability of cluster and |a emission was measured by 1986Tr10; clusters were identified as neon ions from their residual ionic paths, and assigned to {+24}Ne from comparison of experimental path distribution with calculations and from its decay energies. 
T$From 2013Ch53. Other measured values: 7.57|*10{+4} y {I1} (2000Ch56), 7.54|*10{+4} y {I3} (1980Me10, specific activity), 8.23|*10{+4} y {I25} (1930Cu02, from {+222}Rn growth), 7.3|*10{+4} y {I4} (1931So01, from {+226}Ra growth), 8.0|*10{+4} y {I3} (1949Hy03, specific activity), 7.61|*10{+4} y {I14} (1962At01, calorimetry). See 1980Me10 and 1990Ho28 for earlier measurements and for recalculated half-lives. Other value: >1.5|*10{+17} y (1952Se67). 
$T{-1/2}(SF)|>1.5|*10{+17} y (1952Se67) yields %SF|<5|*10{+-11}. 
$Isotope shift relative to {+232}Th was measured by 1989Ka29 by LASER spectroscopy: IS=15360 {I30} MHz [IS=|n({+230}Th)-|n({+232}Th)] 


level_energy_unit: KEV
level_spin_parity: 2+
level_lifetime_unit: NS
level_comment:
J$53.20|g to 0+ is E2. 
T$From (|a)(ce)(t) in {+234}U decay (1965Ne03). Other values: T{-1/2}=0.37 ns {I2} from |gce(t) in {+230}Pa decay (1960Be25), T{-1/2}=0.352 ns {I5} calculated by the evaluator from B(E2) of 8.06 {I11}. 


level_energy_unit: KEV
level_spin_parity: 3+
level_comment:
J$772.4|g E2 to 2+; |g ray to 4+, and |g ray from 2-; ratio of reduced transition rates agrees with theory (Alaga rule): B(E2,772.4|g)/B(E2,651.6|g)=0.39 {I17} observed, 0.40 theory. 


level_energy_unit: KEV
level_spin_parity: (2)-
level_comment:
J$1026|g E1 to 2+; 253.6|g to 3+ state; no |g ray to 4+; ratio of reduced transition rates is in fair agreement with theory (Alaga rule): B(E2,571|g)/B(E2,508|g)=2.7 {I14} observed, 4.0 theory. 


level_energy_unit: KEV
level_spin_parity: (5-)
level_comment:
J$|g-ray transitions to 4+, 3- states of the K=0+ g.s. and K=0- octupole-vibrational bands, but no |g rays to 0+, 2+ and 1- states of these bands. 


level_energy_unit: KEV
level_spin_parity: (0+)
level_comment:
J$|g rays to 2+ states; log| {Ift}=7.1 from (1+) {+230}Ac |b{+-} decay; L(p,t)=0. 
$J|p=2+, K=0 was suggested by 1972Ma15 from energy difference of the 1638.5- and 1589.8-keV levels. 


level_energy_unit: KEV
level_spin_parity: 2+
level_comment:
$B(E2)=0.14 {I3} was obtained in 1975Th11 by normalizing (d,d') cross section for the 2+, 54-keV level to B(E2)=8.06 {I11}, as measured in Coulomb excitation. 


level_energy_unit: KEV
level_spin_parity: 3-
level_comment:
$B(E3)=0.50 was obtained in 1975Th11 by normalizing (d,d') cross section for the 3-, 570-keV level to B(E3)=0.64, as measured in Coulomb excitation. 


level_energy_unit: KEV
level_spin_parity: (3-)
level_comment:
$Assignment to the K=2 band is tentative (1975Th11). From Adopted Levels: J|p(1108.2 level)=4+ of K=2 band, and J|p(1108.9 level)=5- of K=1 band. 
$B(E3)=0.06 was obtained in 1975Th11 by normalizing (d,d') cross section for the 3-, 570-keV level to B(E3)=0.64, as measured in Coulomb excitation. 


level_energy_unit: KEV
level_spin_parity: 2+
level_lifetime_unit: NS
level_comment:
$Other measurements: B(E2)=11.1 {I17}; |e(L12)B(E2)=4.4, (L1+L2/L3)=1.10 {I15} (1961Re02). 
T$Deduced by evaluator from B(E2)=8.06 {I11}, |a=228. 


level_energy_unit: KEV
level_spin_parity: 2+
level_lifetime_unit: PS
level_comment:
T$Deduced by evaluator from B(E2)=0.046 {I6} and branching(677|g)=0.35 {I3} (see {+230}Th adopted |g properties). 


level_energy_unit: KEV
level_spin_parity: 2+
level_lifetime_unit: PS
level_comment:
T$Deduced by evaluator from B(E2)=0.123 {I13} and branching(781|g)=0.43 {I3} (see {+230}Th Adopted Gammas). 


level_energy_unit: KEV
level_spin_parity: 2+
level_lifetime_unit: PS
level_lifetime_info: ;ERR=GE
level_comment:
$1009- and 1012-keV levels were unresolved in experiment by 1974Mc15. If the excitation of 3-, 1012-keV level is taken as negligible, then B(E2)=0.084 {I13} (1974Mc15). 
T$Deduced by evaluator from B(E2)|<0.097 and branching(1009|g)=0.29 {I6} (see {+230}Th Adopted Gammas). B(E2)=0.084 {I13} yields T{-1/2}=0.93 ps {I24}. 


level_energy_unit: KEV
level_spin_parity: (1-,0+)
level_comment:
J$|s(|q) is not typical of 1- which was assigned in earlier studies, but |s(|q) can be fitted with a one-step or 2-step excitation, as well as with an 0+ excitation 


level_energy_unit: KEV
level_spin_parity: 0+
level_lifetime_unit: Y
level_comment:
T$from multi-collector inductively coupled plasma mass spectroscopy measuring number of {+230}Th to {+238}U (2013Ch13) 


level_energy_unit: KEV
level_spin_parity: 5/2+
level_lifetime_unit: H
level_comment:
$%|a|?2|*10{+-14} is expected as negligible, as deduced by evaluators from theoretical T{-1/2}(|b{+-})>100 s and T{-1/2}(|a)=4.9|*10{+17} s (2019Mo01) 
T$1958Ca19 measured 25.52 h {I1}, where unweighted average was taken in |b counting of 18 different sources, prepared and purified in five different irradiations of {+230}Th by neutrons, with individual values (in h) being: 25.57, 25.44, 25.51, 25.43, 25.51, 25.43, 25.52, 25.56, 25.47, 25.58, 25.51, 25.59, 25.42, 25.58, 25.66, 25.45, 25.56 and 25.51, without uncertainties on individual data points. Evaluators obtain an unweighted average of 25.517 h {I16} or 25.52 h {I2}. In addition, there is no discussion in 1958Ca19 about the systematic uncertainties in the counting procedure and least-squares fits of decay curves. Based on a spread of values in 1958Ca19, which may serve as an indicator of systematic uncertainty, evaluators estimate a total uncertainty of 0.08 h. 1951Ja17 (also plutonium project report ANL-4176, p23 (1948)) measured T{-1/2}=25.64 h {I10}, from an average of 25.56 h {I6} and 25.73 h {I6} for two samples counted using a G.M. counter, where the uncertainties were from dispersion in data, with no discussion of the systematic uncertainties, however an uncertainty of 0.10 h seems to encompass both the statistical and systematic uncertainties. Evaluators adopt T{-1/2}=25.57 h {I8} from weighted average of 25.52 h {I8} (1958Ca19) and 25.64 h {I10} (1951Ja17). Other measurements: 25.76 h {I21} (1983Ch06); 25.0 h {I5} (1973Ch24); 25.7 h {I2} (1971Ko48); 25.2 h, 25.8 h (1963Na06); 24.3 h {I20} (1956Ph61); 25.51 h {I23} (1949Kn09, also 25.5 h in AECD-1880 report (1948)); 24.5 h (Y. Nishina et al., Nature 142, 874 (1938)); 24.0 h (1932Gr01). In 1931Cu01 evaluation, T{-1/2}=24.6 h, without citation of a reference for a measurement of this value in their Table I. Weighted average of all the measurements listed with uncertainties is 25.58 h {I8}, with revised uncertainty of 0.08 h in 1958Ca19 
J$L(d,t)=2; log| {Ift} values to 84.2, 5/2+; 101.4, 7/2+; and 320, 3/2- levels in {+231}Pa require 5/2; 247.6 E2 |g from 247.5, 1/2+ level 


level_energy_unit: KEV
level_spin_parity: 5/2-
level_lifetime_unit: NS
level_comment:
J$144|g E1 to 7/2+, 185.7|g E1 to 5/2+; rotational band structure. 
T$other: 0.77 ns {I12} from {+235}U |a decay 


level_energy_unit: KEV
level_spin_parity: 3/2+
level_lifetime_unit: PS
level_lifetime_info: ;ERR=LT
level_comment:
J$M1 |g ray from 1/2+ in neutron avg. res. capture; band member from 'Fingerprint' method in (d,t) (2008Bu14) 


level_energy_unit: KEV
level_spin_parity: 5/2+
level_comment:
J$L(d,p)=L(d,t)=2; 199|g M1 to 7/2+. (9/2+) suggested in ({+3}He,|a) with L=3-6 could be for a different level 


level_energy_unit: KEV
level_spin_parity: (5/2+:11/2+)
level_uncertain: ?
level_comment:
E$2008Bu14, in their (d,t) work, see a very weak peak near 385 keV but assign to a possible contaminant. The authors question the existence of this level from very weak |g rays in |a decay. In {+235}U |a decay, work in 2017Le03 reported intensity of the 343.5|g and 2018Ma03 reported the intensity of 289.5|g. No experiment has reported the placement of these |g rays from coincidence data. 
J$290|g to 9/2+, 343|g to 7/2+. 2008Bu14, in (d,t) work, discussed that this level cannot be the 11/2+ member of 3/2[631] band, based on comparison of measured and calculated cross sections. In the (d,t) work of 1972Gr19, 11/2, 3/2[631] assignment appears incorrect, in view of analysis by 2008Bu14 


level_energy_unit: KEV
level_spin_parity: 3/2-
level_comment:
J$L(d,t)=1; E1 |g ray from 1/2+ in neutron avg. res. capture; 405|g E2+M1 to 5/2-; band member 
$Note that (d,t) strength is not consistent with 3/2[761] configuration assignment. 


level_energy_unit: KEV
level_spin_parity: (3/2)-
level_lifetime_unit: NS
level_comment:
T$from |b|g|g(t) in {+231}Ac decay (1999Aa03). 
J$L(d,t)=3+1; E1 |g ray from 1/2+ in neutron avg. res. capture; band member 


level_energy_unit: KEV
level_spin_parity: (5/2)-
level_comment:
E$possible doublet as indicated in (d,t) 
J$L(d,t)=3(+1) with possible configuration=|n5/2[503] (2008Bu14). 15/2 suggested as member of 1/2[770] band in 1987Wh01, deduced from energies of other members of this band is not supported by |s(|q) distribution in (d,t) and |s({+3}He,|a)/|s(d,t) ratio which is consistent with L=3 rather than L=7 required by J=[15/2] (2008Bu14) 


level_energy_unit: KEV
level_spin_parity: 5/2+
level_comment:
J$L(d,t)=2; 614|g M1 to 7/2+, 649|g (M1) to 5/2+, 669|g E2+M1 to 3/2+. 1987Wh01 in (n,|g) E=th predicted the 7/2+, 1/2+[640] state at 891.6 keV. 


level_energy_unit: KEV
level_spin_parity: 3/2+,5/2+
level_comment:
J$L(d,t)=2. {I9}/2+ suggested in (d,p). (11/2+) proposed in ({+3}He,|a). There could be two other different levels near this energy if the results of (d,p) and ({+3}He,|a) prove to be valid 


level_energy_unit: KEV
level_spin_parity: 1/2+
level_uncertain: S
level_comment:
E$S(n)+E(n), S(n)=5118.02 keV {I20} (2021Wa16), E(n)=2 keV. 
J$s-wave n-capture in 0+ g.s. of {+230}Th 


level_energy_unit: KEV
level_spin_parity: 9/2+
level_comment:
$d|s/d|W=10 |mb/sr (45|'), 5 |mb/sr (60|') 
E$98 {I1}, 9/2, |n5/2[633] (1970Er04); 98 {I3}, 9/2, |n5/2[633] (1977Wi07) 


level_energy_unit: KEV
level_spin_parity: 11/2+
level_comment:
$d|s/d|W=26 |mb/sr (45|'), 19 |mb/sr (60|') 
E$164 {I1}, 11/2, |n5/2[633] (1970Er04); 164 {I3}, 11/2, |n5/2[633] (1977Wi07) 


level_energy_unit: KEV
level_spin_parity: 5/2+
level_comment:
$d|s/d|W=63 |mb/sr (45|'), 93 |mb/sr (60|') 
E$242.6 {I10}, 5/2, |n3/2[631] (1970Er04); 240 {I5}, 5/2, |n3/2[631] (1977Wi07) 


level_energy_unit: KEV
level_spin_parity: 3/2+
level_comment:
$d|s/d|W=303 |mb/sr (45|'), 198 |mb/sr (60|') 
E$272 {I3}, doublet, 1/2,3/2, |n1/2[631] (1970Er04); 274 {I4}, 1/2,3/2, 1/2[631] (1977Wi07) 


level_energy_unit: KEV
level_spin_parity: 9/2+
level_comment:
$d|s/d|W=442 |mb/sr (45|'), 271 |mb/sr (60|') 
E$324 {I2}, 9/2, |n3/2[631] (1970Er04); 324 {I3}, 9/2, |n3/2[631] (1977Wi07) 


level_energy_unit: KEV
level_spin_parity: 15/2-
level_comment:
$d|s/d|W=34 |mb/sr (45|'), 32 |mb/sr (60|') 
E$405 {I2}, 9/2, |n1/2[631] (1970Er04); 400 {I4}, 15/2, |n5/2[752] (1977Wi07) 


level_energy_unit: KEV
level_spin_parity: 11/2-&11/2+
level_comment:
E,J$doublet, 11/2- member of |n7/2[743] and 11/2+ member of |n5/2[622] 
$d|s/d|W=5 |mb/sr (45|'), 5 |mb/sr (60|') 


level_energy_unit: KEV
level_spin_parity: 1/2-
level_comment:
$d|s/d|W=50 |mb/sr (45|'), 43 |mb/sr (60|') 
E$557 {I1}, 1/2, |n1/2[501] (1970Er04); 555 {I4}, 1/2, |n1/2[501] (1977Wi07) (1977Wi07) 


level_energy_unit: KEV
level_spin_parity: 3/2-&3/2-
level_comment:
E,J$doublet, 3/2- member of |n1/2[501] and 3/2- bandhead of |n3/2[761] 
$d|s/d|W=38 |mb/sr (45|'), 32 |mb/sr (60|') 
E$595 {I3} (1970Er04); 592 {I5}, 3/2,5/2, |n1/2[501] (1977Wi07) 


level_energy_unit: KEV
level_spin_parity: 3/2-&5/2-
level_comment:
E,J$doublet, 3/2- member of |n3/2[631]~#0- and 5/2- member of |n5/2[752]~#0+ 
$d|s/d|W=16 |mb/sr (45|'), 16 |mb/sr (50|') 
E$622 {I2} (1970Er04) 


level_energy_unit: KEV
level_spin_parity: 5/2+
level_comment:
E$most likely the g.s. 
$d|s/d|W=4 |mb/sr {I1} 
E$0, 5/2, |n5/2[633] (1977Wi07, 1972Gr19) 
E$0, spectroscopic factor=0.00087 {I18}, 5/2+, |n5/2[633] (1972Er03) 


level_energy_unit: KEV
level_spin_parity: 7/2+
level_comment:
$d|s/d|W=47 |mb/sr {I5} 
E$42 {I3}, 7/2, |n5/2[633] (1977Wi07); 42, 7/2, |n5/2[633] (1972Gr19) 
E$42, spectroscopic factor=0.027 {I4}, 7/2+, |n5/2[633] (1972Er03). 
E$40 {I2}, L=4, spectroscopic factor=0.15, 7/2, |n5/2[633] (1970Bo31) 


level_energy_unit: KEV
level_spin_parity: 9/2+
level_comment:
$d|s/d|W=26 |mb/sr {I4} 
E$98 {I3}, 9/2, |n5/2[633] (1977Wi07); 96, 9/2, |n5/2[633] (1972Gr19) 
E$98 {I1}, spectroscopic factor=0.0082 {I12}, 9/2+, |n5/2[633] (1972Er03) 
E$97 {I2}, L=4, spectroscopic factor=0.07, 9/2, |n5/2[633] (1970Bo31) 


level_energy_unit: KEV
level_spin_parity: 11/2+
level_comment:
$d|s/d|W=42 |mb/sr {I5} 
E$164 {I3}, 11/2, |n5/2[633] (1977Wi07); 162, 11/2, |n5/2[633] (1972Gr19) 
E$164 {I1}, spectroscopic factor=0.108 {I14}, 11/2+, |n5/2[633] (1972Er03) 
E$163 {I2}, L=6, spectroscopic factor=0.97, 11/2, |n5/2[633] (1970Bo31) 


level_energy_unit: KEV
level_spin_parity: 3/2+
level_comment:
$d|s/d|W=11 {I2}. 
L$uncertain assignment due to poor L=2 DWBA fit of |s(|q) distribution. 
E$223 {I10} (1977Wi07) 
E$228 {I3}, 3/2, |n3/2[631] (1970Er04) 


level_energy_unit: KEV
level_spin_parity: 5/2+
level_comment:
$d|s/d|W=290 |mb/sr {I14} 
E$240 {I5}, 5/2, |n3/2[631] (1977Wi07); 242, 5/2, |n3/2[631] or 1/2, 1/2[631] (1972Gr19) 
E$242.6 {I10}, spectroscopic factor=0.072 {I8}, 5/2+, |n3/2[631] (1972Er03) 
E$244 {I2}, spectroscopic factor=0.34, 5/2, |n3/2[631] (1970Bo31) 


level_energy_unit: KEV
level_spin_parity: 3/2+
level_comment:
$d|s/d|W=155 |mb/sr {I7} 
E$274 {I4}, 1/2,3/2, |n1/2[631] (1977Wi07); 271, 3/2, |n1/2[631] or 7/2, |n3/2[631] (1972Gr19) 
E$272 {I3}, doublet, 1/2,3/2, |n1/2[631] (1970Er04) 
E$275 {I4}, spectroscopic factor=0.17, 1/2,3/2, |n3/2[631] (1970Bo31) 


level_energy_unit: KEV
level_spin_parity: 7/2+&(11/2-)
level_comment:
E$doublet. 
$d|s/d|W=80 |mb/sr {I7} for doublet 
L$possible fit with L=4+5. 
E$280, 11/2, |n5/2[752] (1972Gr19) 


level_energy_unit: KEV
level_spin_parity: 9/2+
level_comment:
$d|s/d|W=376 |mb/sr {I10} 
E$324 {I3}, 9/2, |n3/2[631] (1977Wi07); 322, 9/2, |n3/2[631] (1972Gr19) 
E$324 {I2}, spectroscopic factor=0.196 {I16}, 9/2+, |n3/2[631] (1972Er03) 
E$325 {I2}, L=4, spectroscopic factor=1.69, 9/2, |n3/2[631] (1970Bo31) 


level_energy_unit: KEV
level_spin_parity: 7/2+
level_comment:
L$L=2 fits better than L=4 in |s(|q) distribution. 
$d|s/d|W=10 |mb/sr {I2} 
E$347 {I10} (1977Wi07); 348 (1972Gr19) 


level_energy_unit: KEV
level_spin_parity: (7/2+)
level_comment:
L$L=1 fits better than L=4 in |s(|q) distribution. 
$d|s/d|W=8 |mb/sr {I2} 
E$376, 11/2, |n3/2[631] (1972Gr19) 


level_energy_unit: KEV
level_spin_parity: 15/2-
level_comment:
E,L$may have an admixture of L=6, 11/2+ member of |n3/2[631] band. 
$d|s/d|W=60 |mb/sr {I5} 
E$400 {I4}, 15/2, |n5/2[752] (1977Wi07); 400, 15/2, |n5/2[752] (1972Gr19) 
E$402 {I2}, L=7, spectroscopic factor=3.94, 15/2, |n5/2[752] (1970Bo31) 


level_energy_unit: KEV
level_spin_parity: (11/2+,11/2-)
level_comment:
L$|s(|q) distribution not shown in authors' Fig. 3, very weak peak, possibly mixed L=6 and 7 for two known levels near this energy. 
$|n7/2[743], J|p=11/2- configuration is also possible if doublet. 
$d|s/d|W=4 |mb/sr {I1} 


level_energy_unit: KEV
level_energy_info: ;ERR=?
level_spin_parity: 1/2-
level_comment:
E$energy used for calibration. 
$d|s/d|W=1.080 mb/sr {I22} 
E$555 {I4}, 1/2, |n1/2[501] (1977Wi07); 551, 1/2, |n1/2[501] (1972Gr19) 
E$557 {I1}, spectroscopic factor=0.409 {I35}, 1/2-, |n1/2[501] (1972Er03) 
E$558 {I2}, spectroscopic factor=0.94, 1/2, |n1/2[501] (1970Bo31) 


level_energy_unit: KEV
level_energy_info: ;ERR=?
level_spin_parity: 3/2-
level_comment:
E$authors take from literature (ENSDF-2013). The |n3/2[761] assignment in ENSDF-2013 update is inconsistent with the measured strength. The quasiparticle+phonon model calculations predict |?0.6% admixture of |n3/2[501] whereas observed strength gives 3.5% admixture. 
$d|s/d|W=74 |mb/sr {I8}, multiplet. 
E$590, 3/2, |n3/2[501] (1972Gr19) 


level_energy_unit: KEV
level_energy_info: ;ERR=?
level_spin_parity: 5/2-&(3/2-)
level_comment:
S$for L=3; S=0.040 {I9} for L=1 
E$multiplet. 
$d|s/d|W=257 |mb/sr {I20} for doublet 
E$592 {I5}, 3/2,5/2, |n1/2[501] (1977Wi07) 
E$595 {I3} (1970Er04) 
E$594 {I3}, spectroscopic factor=0.33, 3/2,5/2, |n1/2[501] (1970Bo31) 


level_energy_unit: KEV
level_spin_parity: 3/2-
level_comment:
$d|s/d|W=125 |mb/sr {I9} 
E$619 {I4} (1977Wi07); 622 {I2} (1970Er04); 621 {I2} (1970Bo31); 615, 5/2, |n1/2[501] (1972Gr19) 


level_energy_unit: KEV
level_comment:
$d|s/d|W=58 |mb/sr {I6} 
E$646 {I4} (1977Wi07); 647 {I2} (1970Er04); 647 {I2} (1970Bo31); 642, 7/2, |n1/2[640] (1972Gr19) 


level_energy_unit: KEV
level_comment:
E,J$possible doublet with J|p=(1/2-,3/2-) and (5/2-,7/2-) 
S$for L=1; S=0.05 {I2} for L=3 
$d|s/d|W=117 |mb/sr {I7} 
E$684 {I4} (1977Wi07); 686 {I2} (1970Er04); 686 {I2} (1970Bo31); 681, 5/2, |n1/2[640] (1972Gr19) 


level_energy_unit: KEV
level_spin_parity: 3/2-&(7/2)-
level_comment:
E$doublet 
S$for L=1; S=0.021 {I8} for L=3 
$d|s/d|W=27 |mb/sr {I5} 
E$716 {I10} (1977Wi07); 718 {I2} (1970Er04); 715 (1972Gr19) 


level_energy_unit: KEV
level_spin_parity: 5/2-
level_comment:
E$possible doublet 
S$for L=3. s=0.61 {I4} for L=3 and 0.027 {I6} for L=1 if L=3+1 
J$15/2 suggested as member of |n1/2[770] band in 1987Wh01, deduced from energies of other members of this band is not supported by |s(|q) distribution in (d,t) and |s({+3}He,|a)/|s(d,t) ratio which is consistent with L=3 rather than L=7 required by J=[15/2] (2008Bu14) 
$d|s/d|W=403 |mb/sr {I13} 
E$811, 5/2, |n5/2[503] (1977Wi07); 808, 5/2, |n5/2[503] (1972Gr19) 
E$815 {I2} (1970Er04); 816 {I2} (1970Bo31) 


level_energy_unit: KEV
level_comment:
L$from Table 1 of 2008Bu14, |s(|q) distribution not shown in authors' Fig. 3. The distribution plot was made available to the compiler of the XUNDL dataset in e-mail reply by D.G. Burke on June 30, 2008 
$d|s/d|W=18 |mb/sr {I3} 
E$838 {I10} (1977Wi07) 


level_energy_unit: KEV
level_spin_parity: 3/2-
level_comment:
$d|s/d|W=0.70 mb/sr {I4} 
E$875 {I4}, 3/2, |n3/2[501] (1977Wi07) 
E$877 {I2} (1970Er04); 876 {I2}, L=3, spectroscopic factor=2.25, |n5/2[503] (1970Bo31) 


level_energy_unit: KEV
level_spin_parity: (5/2)+
level_comment:
$Possible member of |n1/2[640] and/or |n1/2[651] bands 
$d|s/d|W=0.21 mb/sr {I4} 
E$890 {I12} (1977Wi07); 892 {I2} (1970Er04); 885, 5/2, |n3/2[642] (1972Gr19) 


level_energy_unit: KEV
level_spin_parity: 5/2-
level_comment:
$d|s/d|W=42 |mb/sr {I5} 
E$915 {I5} (1977Wi07); 915 {I2} (1970Er04); 914 {I2} (1970Bo31); 908, 5/2, |n3/2[501] (1972Gr19) 


level_energy_unit: KEV
level_comment:
E$964 in Fig. 3, but 966.0 is the correct value 
$d|s/d|W=30 |mb/sr {I5} 
E$966 {I6} (1977Wi07); 965, 7/2, |n3/2[501] (1972Gr19) 


level_energy_unit: KEV
level_spin_parity: 3/2+
level_comment:
E$possible doublet 
S$for L=1; S=0.013 {I5} for L=2 
$d|s/d|W=50 |mb/sr {I5} 
E$999, 9/2, 3/2[642] (1972Gr19) 


level_energy_unit: KEV
level_spin_parity: 3/2-
level_comment:
$d|s/d|W=55 |mb/sr {I5} 
E$1021 {I10} (1977Wi07); 1026 {I2} (1970Er04); 1027 {I2} (1970Bo31); 1016 (1972Gr19) 


level_energy_unit: KEV
level_comment:
$d|s/d|W=125 |mb/sr {I8} 
E$1391 {I10} (1977Wi07); 1398 {I3} (1970Er04); 1399 {I2} (1970Bo31); 1386 (1972Gr19) 


level_energy_unit: KEV
level_comment:
L$from Table 1 of 2008Bu14, |s(|q) distribution not shown in authors' Fig. 3. The distribution plot was made available to the compiler of the XUNDL dataset in e-mail reply by D.G. Burke on June 30, 2008 
E$possible doublet 
S$for L=1 
$d|s/d|W=40 |mb/sr {I10} 
E$1464 {I10} (1977Wi07) 


level_energy_unit: KEV
level_comment:
L$from Table 1 of 2008Bu14, |s(|q) distribution not shown in authors' Fig. 3. The distribution plot was made available to the compiler of the XUNDL dataset in e-mail reply by D.G. Burke on June 30, 2008 
$d|s/d|W=50 |mb/sr {I5} 
E$1487 {I8} (1977Wi07); 1481 (1972Gr19) 


level_energy_unit: KEV
level_spin_parity: (11/2-)
level_comment:
S$for |n5/2[752] + |n3/2[761] + |n7/2[743] 
$d|s/d|W=3.9 |mb/sr {I19} (35|'), 4.1 |mb/sr {I9} (60|') 


level_energy_unit: KEV
level_spin_parity: 15/2-
level_comment:
S$for |n5/2[752] + |n3/2[761] + |n7/2[743] 
$d|s/d|W=90.2 |mb/sr {I36} (35|'), 52.7 |mb/sr {I27} (60|') 


level_energy_unit: KEV
level_spin_parity: (15/2-)
level_comment:
S$for |n5/2[752] + |n3/2[761] + |n7/2[743] 
$d|s/d|W=2.9 |mb/sr {I10} (35|'), 2.4 |mb/sr {I8} (60|') 


level_energy_unit: KEV
level_spin_parity: (15/2-)
level_comment:
S$for |n5/2[752] + |n3/2[761] + |n7/2[743] 
$d|s/d|W=55.9 |mb/sr {I30} (35|'), 38.3 |mb/sr {I47} (60|') 


level_energy_unit: KEV
level_spin_parity: 5/2-
level_lifetime_unit: NS
level_comment:
T$1999Aa03 compared their value with 0.77 ns {I12} from 1959St49 measured in {+235}U |a decay, and explained the discrepancy as due to the latter value measured using NaI(Tl) detectors, thus affected by |g rays other than those due to direct feeding and deexcitation of the 185.7-keV level. 


level_energy_unit: KEV
level_spin_parity: (1/2)-
level_lifetime_unit: PS
level_comment:
$1973Ch24 placed 512.4- and 554.4- |g rays deexciting this level. These |g rays, however, have been interpreted as sum peaks in the spectrum (1999Aa03). 
$Configuration=|n1/2[501] 


level_energy_unit: KEV
level_spin_parity: 0+
level_lifetime_unit: Y
level_comment:
Deformation |b{-4}=0.050 {i5} from (p,p') (1972BrZK) 
Deformation parameters deduced from (p,p') (1971Mo13,1980RoZZ,1986Ta12). 
Q(0), giant-dipole resonance studied (1973Ve01) 
T Evaluated and recommended in 1990Ho28. Weighted average of: 1.39|*10{+10} y {I3} (1938Ko01, 1956Pi42), 1.42|*10{+10} y {I7} (1956Se17), 1.45|*10{+10} y {I5} (1956Ma43), 1.41|*10{+10} y {I14} (1960Fa07), and 1.40|*10{+10} y {I7} (1963Le21). 
%SF From T{-1/2}(SF)=1.2|*10{+21} y {I4}, evaluated and recommended in 2000Ho27, from: >0.0014|*10{+21} y (1952Se67), >0.1|*10{+21} y (1955Po45), >1|*10{+21} y (1958Fl44), >1.0|*10{+21} y {I3} (1967Sp12), >0.7|*10{+21} y (1975Em03), and 1.22 y {I43} (1995Bo18). Others: 1997Ro12, 2004Ro01. 
T$T{-1/2} {+12}C,{+16}O emissions >3|*10{+18} y (1975ChZJ). 
T$Measured T{-1/2} {+24}Ne-{+26}Ne emissions >5.06|*10{+21} y (1995Bo18). Others: 1996Bo18, 1975ChZJ. 


level_energy_unit: KEV
level_spin_parity: 2+
level_lifetime_unit: PS
level_comment:
J$49.4|g E2 to 0+ 
T$Delayed coincidence (1960Be25). Other values: 320 ps {i24} Mossbauer (1973Ca29), 345 ps {i15} delayed coincidence (1960Be25), 315 ps {i3} from B(E2)=9.21 {i9} (1973Be44) and |a=332 (reducing |a by 1.5% {i7} as recommended by 1987Ra01 would give T{-1/2}=320 ps {i4}). 


level_energy_unit: KEV
level_spin_parity: 4+
level_lifetime_unit: PS
level_comment:
T$Doppler-shift recoil distance (1982Ow01) 
J$112.7|g E2 to 2+ 
T$The effect of charge-state of recoils on T{-1/2} is probably <20%. 
MOMM1 Studied for 4+,6+ levels by |g,|g precession in Fe (1971MuZN) 


level_energy_unit: KEV
level_spin_parity: 6+
level_lifetime_unit: PS
level_comment:
T$Weighted average of 58.4 ps {I42} (1976Gu12) and 66.2 ps {I51} (1975Jo07), Doppler-shift recoil distance. 
J$171.2|g E2 to 4+ 


level_energy_unit: KEV
level_spin_parity: 8+
level_lifetime_unit: PS
level_comment:
T$Weighted average of 23.8 ps {I13} (Doppler-shift recoil distance, 1976Gu12), 25.1 ps {I23} (Doppler-shift recoil distance, 1975Jo07), and 20 ps {I3} (From B(E2)=4.0 {I2}, 1982Ow01). 
J$226.3|g E2 to 6+ 


level_energy_unit: KEV
level_spin_parity: 10+
level_lifetime_unit: PS
level_comment:
J$Weighted average of 10.4 ps {I6} (Doppler-shift recoil distance, 1976Gu12), 11.2 ps {I17} (Doppler-shift recoil distance, 1975Jo07), and 9.5 ps {I11} (from B(E2)=3.9 {I2}, 1982Ow01). 
J$269.8|g E2 to 8+ 


level_energy_unit: KEV
level_spin_parity: 12+
level_lifetime_unit: PS
level_comment:
T$Weighted average of 5.5 ps {I4} (Doppler-shift recoil distance, 1976Gu12), and 5.8 ps {I7} (From B(E2)=3.6 {I2}, 1982Ow01). 
J$310.2|g E2 to 10+ 


level_energy_unit: KEV
level_spin_parity: 2+
level_lifetime_unit: PS
level_comment:
J$1387.2|g E2 to 0+. 
T$From B(E2)=0.0105 {I8} (1993Mc07) and adopted Branching(1387|g)=0.075 {I23}. 


level_energy_unit: KEV
level_spin_parity: 4+
level_lifetime_unit: PS
level_comment:
T$From Coulomb Excitation: HI (1995Ko15) 
J$|g deexcitation, possibly two phonon K|p=4+ |g vibrational band 
J$584.2|g M1+E2 to 3+, 524|g M1+E2 to 4+, 628.5 E2 to 2+. 


level_energy_unit: KEV
level_spin_parity: 14+
level_lifetime_unit: PS
level_comment:
T$Doppler-shift recoil distance (1976Gu12). Other value: 3.1 ps {I3} (From B(E2)=3.8 {I2}, 1982Ow01). 
J$345.2|g E2 to 12+ 


level_energy_unit: KEV
level_spin_parity: 2+
level_lifetime_unit: FS
level_comment:
T$From B(E2)=0.0279 {I20} (1993Mc07) and branching(1554|g) from Coulomb Excitation: Li. 
J$1554.0|g E2 to 0+ 
T from B(E2) 


level_energy_unit: KEV
level_spin_parity: 16+
level_lifetime_unit: PS
level_comment:
T$Weighted average of 2.2 ps {I2} (Doppler-shift recoil distance, 1976Gu12), and 2.7 ps {I6} (From B(E2)=3.5 {I2}, 1982Ow01). 
J$376.3|g E2 to 14+ 


level_energy_unit: KEV
level_spin_parity: 18+
level_lifetime_unit: PS
level_comment:
T$Weighted average of 1.3 ps {I2} (Doppler-shift recoil distance, 1976Gu12), and 1.6 ps {I4} (From B(E2)=3.7 {I6}, 1980Ow01). 
J$403.9|g E2 to 16+ 


level_energy_unit: KEV
level_energy_info: ;ERR=?
level_spin_parity: 4+
level_lifetime_unit: PS
level_comment:
Band head of a two-phonon K|p=4+ |g|g vibrational band. 
T From Adopted Levels 
From {+232}Th(n,n'|g) (2000Ma97). 
T$628|g (4+ to 2+) is stretched E2, from |g(|q) (2000Ma97). 


level_energy_unit: KEV
level_spin_parity: 8+
level_lifetime_unit: PS
level_comment:
T$Weighted average of 25.1 ps 23 (1975Jo07), 23.8 ps 13 (1976Gu12), and 20 ps 3 (1982Ow01). 
Excitation probability measured near Coulomb barrier for {+232}Th({+206}Pb,{+206}Pb'|g) (1986De36). 


level_energy_unit: KEV
level_spin_parity: 2+
level_comment:
1993Mc07 assigned this state as possible candidate for a two-phonon state. This assignment has not been confirmed in 2000Gu22. 


level_energy_unit: KEV
level_spin_parity: 1/2+
level_lifetime_unit: MIN
level_comment:
T$from 1998Us01, ten different averaging evaluation procedures were used on data for decay curves of 14 gamma rays from the decay of {+233}Th. Others: 21.989 min {I13} (2008De31, liquid scintillation counting, uncertainty is statistical only, authors point out that higher value as compared to that in 1998Us01 may be due to the presence of {+233}Pa in their counting); 22.30 min {I2} (1989Ab05, decay curve for 86.5|g); 22.3 min {I1} (1969HoZY, decay curve for one |g ray); 22.4 min {I1} (1957Dr46, decay curve for |b rays); 22.12 min {I5} (1955Je26, decay curve for |b rays); 23.6 min {I6} (1952Ru10, decay curve for |b rays); 23.5 min (1947Se05), 23.0 min, 23.5 min (1941Gr03). The DDEP evaluation (January 2009, available at www.nucleide.org) adopted 22.15 min {I8} from averaging values from 2008De31, 1998Us01, 1969HoZY, 1957Dr46 and 1955Je26, by adjusting uncertainties upwards for some measurements. The evaluators of the current work adopt value from 1998Us01, because of the large number of |g rays used for analysis in this work, and a careful and detailed statistical analysis, in contrast to integral counting in 2008De31, and imprecise results in previous experiments. Moreover, value of 22.15 min, as recommended in the DDEP evaluation, is inconsistent with a large number of data points shown in Figs. 9 and 10 in 1998Us01. Weighted average of the six values (with a minimum uncertainty of 0.04 min) from 1955 to 2008De31 is 22.08 min {I6}, but with reduced |h{+2}=18, as compared to the critical |h{+2} of 2.2. Unweighted average of the same values is 22.16 min {I9}. 
J$E1 transitions from 1/2{+-}, 3/2{+-} states populated in (n,|g) establish parity as positive; J=1/2, 3/2 from |b{+-} decay to 1/2{+-} state in {+233}Pa. |n1/2[631] orbital assignment from systematics of Nilsson states in the neighboring nuclides. 


level_energy_unit: KEV
level_spin_parity: (7/2)-
level_comment:
J$parity is negative from E2 character of the 566.63|g deexciting (3/2)- state; level was not populated by primary |g in thermal neutron capture; no gammas from 1/2|+, 3/2+ levels. 


level_energy_unit: KEV
level_spin_parity: (7/2)+
level_comment:
J$320.79|g from (5/2)+ state is M1; level was not populated by primary |gs in thermal, 2-keV, 24-keV, and E<70 eV resonance neutron-capture 


level_energy_unit: KEV
level_spin_parity: 7/2+
level_comment:
J$327.53|g from (7/2)+ level is M1+E2; 628.38|g from 3/2+ state is (E2); level was not populated by primary |gs in thermal, 2-keV, 24-keV, and E<70 eV neutron capture. Energy fit to the band. 


level_energy_unit: KEV
level_spin_parity: (7/2)+
level_comment:
J$229.02|g to (7/2)+ state is M1; level was not populated by primary gammas in neutron captures; (d,p) data. 


level_energy_unit: KEV
level_spin_parity: (11/2+)
level_comment:
J$level assumed doublet, assigned as 11/2+,7/2[624] and 9/2+,5/2[633] states by 1972Vo08 from (d,p) data. 


level_energy_unit: KEV
level_spin_parity: (9/2+)
level_comment:
E$energy is the same for the levels with J|p=(9/2+) and (11/2+). Evaluators adopt energy of 388.6 for the (9/2+) level simply to list it separate it from the (11/2+) level 
J$level was assumed doublet, and assigned also as 11/2+,7/2[624] state by 1972Vo08 from (d,p) data. 


level_energy_unit: KEV
level_spin_parity: (7/2)+
level_comment:
J$366.62|g to 5/2+ state is M1; 313.81|g to (9/2+) level; level was not populated by primary gammas in (n,|g). 


level_energy_unit: KEV
level_spin_parity: (3/2)-
level_comment:
J$1/2-, 3/2- from 2 and 24 keV average neutron capture; 566.63 E2 transition to (7/2)- state suggests 3/2-. 


level_energy_unit: KEV
level_spin_parity: (5/2-)
level_uncertain: ?
level_comment:
J$593.21|g to (7/2)- is (E2); 582.44|g to 3/2+ level; level is not populated by primary gammas from neutron captures. 


level_energy_unit: KEV
level_spin_parity: (1/2)-
level_uncertain: ?
level_comment:
J$681.85|g to 1/2+ g.s. is E1. 
$Octupole vibrational band built on 1/2[631] state assignment was tentatively proposed by 1979Je01 from the strong E1 transition to g.s. 


level_energy_unit: KEV
level_spin_parity: (3/2-)
level_comment:
E$this level could be identical to 681.846-keV level. 
J$665.25|g to 3/2+ state is possibly E1; 676.02|g to (5/2)+ level; 1979Je01 tentatively proposed 3/2-: 1/2[631],0- assignment. 


level_energy_unit: KEV
level_spin_parity: 3/2+
level_comment:
J$814.74|g to 1/2+ g.s. is M1+E2. 
$K=3/2: 1/2[631],2+ assignment was tentatively suggested by 1979Je01. 


level_energy_unit: KEV
level_spin_parity: (3/2-)
level_comment:
J$thermal, 2-keV and 24-keV resonance, and E<70 eV resonance neutron capture data; gammas to 1/2+ and (5/2)+ states. 


level_energy_unit: KEV
level_spin_parity: (1/2,3/2)+
level_comment:
J$230.78|g to (3/2)+ is M1+E2; 842.47|g to 1/2+ g.s.; no |g to 7/2+ levels. 
$1/2+: 5/2[633],2+ assignment was tentatively suggested by 1979Je01. 


level_energy_unit: KEV
level_spin_parity: 1/2+,3/2,5/2+
level_comment:
J$thermal, 2-keV and 24-keV resonance neutron capture data. 
$J|p=5/2+ of K=3/2: 1/2[631],2+ band assignment was tentatively suggested by 1979Je01. 


level_energy_unit: KEV
level_spin_parity: 1/2+,3/2+
level_comment:
J$861.64|g to 1/2+ g.s. is M1. J|p=3/2+ of K=1/2: 5/2[633],2+ band assignment was tentatively suggested by 1979Je01. 


level_energy_unit: KEV
level_spin_parity: 1/2+,3/2+,5/2+
level_comment:
J$548.95|g to 3/2+ is M1. J|p=5/2+ of K=1/2: 5/2[633],2+ band assignment was tentatively suggested by 1979Je01. 


level_energy_unit: KEV
level_lifetime_unit: NS
level_comment:
E$from |g|g(t) in (n,|g),E=0.05-4.2 keV, this structure is interpreted as a fission isomer (1994Ob02) 
T$quoted as 1-100 ns (1994Ob02) 
%IT$decay mode from |g|g(t). Estimated inner barrier height of 4.6 MeV {I+8-4} excludes SF decay mode (1994Ob02) 


level_energy_unit: KEV
level_energy_info: ;OFF=X;ERR=?
level_spin_parity: (1/2+)
level_uncertain: S
level_comment:
E$S(n)+E(n), where S(n)=4786.39 {I9} (2017Wa10); x=E(n)(in eV)=69.1+59.5+23.4+21.8+<0.2 
J$L=0 for dominant resonances in this energy region. 


level_energy_unit: KEV
level_energy_info: ;ERR=?
level_spin_parity: 1/2,3/2-
level_uncertain: S
level_comment:
E$S(n)+E(n), where S(n)=4786.39 {I9} (2017Wa10), E(n)=2 keV 
J$s- or p-wave capture in 0+ g.s. of {+232}Th 


level_energy_unit: KEV
level_energy_info: ;ERR=?
level_spin_parity: 1/2,3/2-
level_uncertain: S
level_comment:
E$S(n)+E(n), where S(n)=4786.39 {I9} (2017Wa10), E(n)=24 keV 
J$s- or p-wave capture in 0+ g.s. of {+232}Th 


level_energy_unit: KEV
level_spin_parity: 1/2+
level_comment:
S$0.060 {I9} (1972Er03) 
$d|s/d|W=47 |mb/sr, d|s(90|')/d|s(150|')=2.8 (1972Vo08) 
$d|s/d|W=153 |mb/sr (60|'), 113 |mb/sr (90|'), 50 |mb/sr (125|') for 12.0 MeV; 89 |mb/sr (90|'), 59 |mb/sr (125|') for 13.1 MeV (1972Gr19) 


level_energy_unit: KEV
level_spin_parity: 3/2+
level_comment:
S$0.129 {I10} (1972Er03) 
E$16 (1972Gr19) 
$d|s/d|W=95 |mb/sr, d|s(90|')/d|s(150|')=2.2 (1972Vo08) 
$d|s/d|W=244 |mb/sr (60|'), 226 |mb/sr (90|'), 124 |mb/sr (125|') for 12.0 MeV; 163 |mb/sr (90|'), 87 |mb/sr (125|') for 13.1 MeV (1972Gr19) 


level_energy_unit: KEV
level_spin_parity: 5/2+
level_comment:
S$0.0031 {I10} (1972Er03) 
E$54 (1972Gr19) 
$d|s/d|W=4 |mb/sr, d|s(90|')/d|s(150|')|?2 (1972Vo08) 
$d|s/d|W=11 |mb/sr (60|'), 7 |mb/sr (90|'), 3 |mb/sr (125|') for 12.0 MeV; 9 |mb/sr (90|'), 4 |mb/sr (125|') for 13.1 MeV (1972Gr19) 


level_energy_unit: KEV
level_spin_parity: 7/2+
level_comment:
S$0.033 {I6} (1972Er03) 
E$92 (1972Gr19) 
$d|s/d|W=13 |mb/sr, d|s(90|')/d|s(150|')|?2 (1972Vo08) 
$d|s/d|W=27 |mb/sr (90|'), 22 |mb/sr (125|') for 12.0 MeV; 20 |mb/sr (90|'), 9 |mb/sr (125|') for 13.1 MeV (1972Gr19) 


level_energy_unit: KEV
level_spin_parity: 9/2+
level_comment:
S$0.155 {I15} (1972Er03) 
E$106 (1972Gr19) 
$d|s/d|W=128 |mb/sr, d|s(90|')/d|s(150|')=1.2 (1972Vo08) 
$d|s/d|W=120|mb/sr (60|'), 178 |mb/sr (90|'), 141 |mb/sr (125|') for 12.0 MeV; 165 |mb/sr (90|'), 128 |mb/sr (125|') for 13.1 MeV (1972Gr19) 


level_energy_unit: KEV
level_spin_parity: 9/2+
level_comment:
S$0.060 {I7} (1972Er03) 
E$160 (1972Gr19) 
$d|s/d|W=59 |mb/sr, d|s(90|')/d|s(150|')=1.1 (1972Vo08) 
$d|s/d|W=48 |mb/sr (60|'), 64 |mb/sr (90|'), 100 |mb/sr (125|') for 12.0 MeV; 88 |mb/sr (90|'), 60 |mb/sr (125|') for 13.1 MeV (1972Gr19) 


level_energy_unit: KEV
level_spin_parity: 11/2+
level_comment:
E$183 (1972Gr19) 
$d|s/d|W=6 |mb/sr, d|s(90|')/d|s(150|')|?0.4 (1972Vo08) 
$d|s/d|W=10 |mb/sr (90|'), 5 |mb/sr (125|') for 13.1 MeV (1972Gr19) 


level_energy_unit: KEV
level_spin_parity: 11/2+
level_comment:
E$216 (1972Gr19) 
$d|s/d|W=11 |mb/sr, d|s(90|')/d|s(150|')|?0.3 (1972Vo08) 
$d|s/d|W=4 |mb/sr (60|'), 6 |mb/sr (90|'), 6 |mb/sr (125|') for 12.0 MeV; 9 |mb/sr (90|'), 14 |mb/sr (125|') for 13.1 MeV (1972Gr19) 


level_energy_unit: KEV
level_spin_parity: (15/2-)
level_comment:
S$0.178 {I30} (1972Er03) 
E$252 (1972Gr19) 
$d|s/d|W=30 |mb/sr, d|s(90|')/d|s(150|')=0.38 (1972Vo08) 
$d|s/d|W=8 |mb/sr (60|'), 14 |mb/sr (90|'), 24 |mb/sr (125|') for 12.0 MeV; 20 |mb/sr (90|'), 32 |mb/sr (125|') for 13.1 MeV (1972Gr19) 


level_energy_unit: KEV
level_spin_parity: 7/2+
level_comment:
E$278 (1972Gr19) 
$d|s/d|W=11 |mb/sr, d|s(90|')/d|s(150|')|?0.5 (1972Vo08) 
$d|s/d|W=8 |mb/sr (60|'), 5 |mb/sr (90|'), 7 |mb/sr (125|') for 12.0 MeV; 6 |mb/sr (90|'), 14 |mb/sr (125|') for 13.1 MeV (1972Gr19) 


level_energy_unit: KEV
level_spin_parity: 9/2+
level_comment:
S$0.104 {I10} (1972Er03) 
E$322 (1972Gr19) 
$d|s/d|W=87 |mb/sr, d|s(90|')/d|s(150|')=1.2 (1972Vo08) 
$d|s/d|W=75 |mb/sr (60|'), 122 |mb/sr (90|'), 96 |mb/sr (125|') for 12.0 MeV; 120 |mb/sr (90|'), 99 |mb/sr (125|') for 13.1 MeV (1972Gr19) 


level_energy_unit: KEV
level_spin_parity: 5/2+
level_comment:
E$367 (1972Gr19) 
$d|s/d|W=23 |mb/sr, d|s(90|')/d|s(150|')=1.6 (1972Vo08) 
$d|s/d|W=40 |mb/sr (60|'), 49 |mb/sr (90|'), 25 |mb/sr (125|') for 12.0 MeV; 44 |mb/sr (90|'), 21 |mb/sr (125|') for 13.1 MeV (1972Gr19) 


level_energy_unit: KEV
level_spin_parity: 11/2+
level_comment:
E$387 (1972Gr19) 
$d|s/d|W=10 |mb/sr, d|s(90|')/d|s(150|')|?0.6 for doublet (1972Vo08) 
$d|s/d|W=13 |mb/sr (90|'), 9 |mb/sr (125|') for 13.1 MeV (1972Gr19); level unresolved at 12.0 MeV 


level_energy_unit: KEV
level_spin_parity: (7/2+)
level_comment:
E$408 (1972Gr19) 
J$Tentative band assignment (1972Vo08) 
$d|s/d|W=19 |mb/sr, d|s(90|')/d|s(150|')=1.1 (1972Vo08) 
$d|s/d|W=16 |mb/sr (60|'), 25 |mb/sr (90|'), 19 |mb/sr (125|') for 12.0 MeV; 26 |mb/sr (90|'), 14 |mb/sr (125|') for 13.1 MeV (1972Gr19) 


level_energy_unit: KEV
level_uncertain: ?
level_comment:
E$440 (1972Gr19) 
$d|s/d|W=6 |mb/sr, d|s(90|')/d|s(150|')|?0.5 (1972Vo08) 
$d|s/d|W=3 |mb/sr (90|'), 3 |mb/sr (125|') for 12.0 MeV; 8 |mb/sr (90|'), 4 |mb/sr (125|') for 13.1 MeV (1972Gr19) 


level_energy_unit: KEV
level_spin_parity: 9/2+
level_comment:
E$480 (1972Gr19) 
$d|s/d|W=19 |mb/sr, d|s(90|')/d|s(150|')=0.66 (1972Vo08) 
$d|s/d|W=11 |mb/sr (60|'), 19 |mb/sr (90|'), 12 |mb/sr (125|') for 12.0 MeV; 25 |mb/sr (90|'), 13 |mb/sr (125|') for 13.1 MeV (1972Gr19) 


level_energy_unit: KEV
level_spin_parity: (1/2-)
level_comment:
E$537 (1972Gr19) 
$d|s/d|W=28 |mb/sr, d|s(90|')/d|s(150|')=1.7 (1972Vo08) 
$d|s/d|W=57 |mb/sr (60|'), 47 |mb/sr (90|'), 34 |mb/sr (125|') for 12.0 MeV; 51 |mb/sr (90|'), 25 |mb/sr (125|') for 13.1 MeV (1972Gr19) 


level_energy_unit: KEV
level_spin_parity: (3/2-)
level_comment:
E$581 (1972Gr19) 
$d|s/d|W=49 |mb/sr, d|s(90|')/d|s(150|')=2.0 (1972Vo08) 
$d|s/d|W=113 |mb/sr (60|'), 86 |mb/sr (90|'), 53 |mb/sr (125|') for 12.0 MeV; 107 |mb/sr (90|'), 37 |mb/sr (125|') for 13.1 MeV (1972Gr19) 


level_energy_unit: KEV
level_comment:
E$624 (1972Gr19) 
$d|s/d|W=55 |mb/sr, d|s(90|')/d|s(150|')=1.7 (1972Vo08) 
$d|s/d|W=101 |mb/sr (60|'), 93 |mb/sr (90|'), 76 |mb/sr (125|') for 12.0 MeV; 126 |mb/sr (90|'), 52 |mb/sr (125|') for 13.1 MeV (1972Gr19) 


level_energy_unit: KEV
level_comment:
E$682 (1972Gr19) 
$d|s/d|W=22 |mb/sr, d|s(90|')/d|s(150|')=2.6 (1972Vo08) 
$d|s/d|W=86 |mb/sr (60|'), 76 |mb/sr (90|'), 51 |mb/sr (125|') for 12.0 MeV; 83 |mb/sr (90|'), 50 |mb/sr (125|') for 13.1 MeV (1972Gr19) 


level_energy_unit: KEV
level_comment:
E$722 (1972Gr19) 
$d|s/d|W=32 |mb/sr, d|s(90|')/d|s(150|')=1.6 (1972Vo08) 
$d|s/d|W=60 |mb/sr (60|'), 60 |mb/sr (90|'), 36 |mb/sr (125|') for 12.0 MeV; 70 |mb/sr (90|'), 39 |mb/sr (125|') for 13.1 MeV (1972Gr19) 


level_energy_unit: KEV
level_comment:
E$748 (1972Gr19) 
$d|s/d|W=7 |mb/sr, d|s(90|')/d|s(150|')|?1 (1972Vo08) 
$d|s/d|W=6 |mb/sr (60|'), 6 |mb/sr (90|'), 5 |mb/sr (125|') for 12.0 MeV; 16 |mb/sr (90|'), 17 |mb/sr (125|') for 13.1 MeV (1972Gr19) 


level_energy_unit: KEV
level_comment:
E$766 (1972Gr19) 
$d|s/d|W=16 |mb/sr, d|s(90|')/d|s(150|')|?2 (1972Vo08) 
$d|s/d|W=35 |mb/sr (60|'), 38 |mb/sr (90|'), 22 |mb/sr (125|') for 12.0 MeV; 25 |mb/sr (90|'), 20 |mb/sr (125|') for 13.1 MeV (1972Gr19) 


level_energy_unit: KEV
level_comment:
E$789 (1972Gr19) 
$d|s/d|W=8 |mb/sr (1972Vo08) 
$d|s/d|W=3 |mb/sr (60|'), 9 |mb/sr (90|'), 5 |mb/sr (125|') for 12.0 MeV; 12 |mb/sr (90|'), 7 |mb/sr (125|') for 13.1 MeV (1972Gr19) 


level_energy_unit: KEV
level_comment:
E$810 (1972Gr19) 
$d|s/d|W=16 |mb/sr, d|s(90|')/d|s(150|')|?1 (1972Vo08) 
$d|s/d|W=32 |mb/sr (60|'), 33 |mb/sr (90|'), 20 |mb/sr (125|') for 12.0 MeV; 40 |mb/sr (90|'), 23 |mb/sr (125|') for 13.1 MeV (1972Gr19) 


level_energy_unit: KEV
level_comment:
E$843 (1972Gr19) 
$d|s/d|W|?46 |mb/sr (1972Vo08) 
$d|s/d|W=96 |mb/sr (60|'), 105 |mb/sr (90|'), 65 |mb/sr (125|') for 12.0 MeV; 115 |mb/sr (90|'), 71 |mb/sr (125|') for 13.1 MeV (1972Gr19) 


level_energy_unit: KEV
level_comment:
E$868 (1972Gr19) 
$d|s/d|W=4 |mb/sr (1972Vo08) 
$d|s/d|W=23 |mb/sr (90|'), 32 |mb/sr (125|') for 13.1 MeV (1972Gr19); level unresolved at 12.0 MeV 


level_energy_unit: KEV
level_comment:
E$886 (1972Gr19) 
$d|s/d|W=18 |mb/sr, d|s(90|')/d|s(150|')|?0.7 (1972Vo08) 
$d|s/d|W=36 |mb/sr (60|'), 30 |mb/sr (90|'), 19 |mb/sr (125|') for 12.0 MeV; 22 |mb/sr (90|'), 46 |mb/sr (125|') for 13.1 MeV (1972Gr19) 


level_energy_unit: KEV
level_comment:
E$919 (1972Gr19) 
$d|s/d|W=12 |mb/sr, d|s(90|')/d|s(150|')=2.4 (1972Vo08) 
$d|s/d|W=27 |mb/sr (60|'), 24 |mb/sr (90|'), 24 |mb/sr (125|') for 12.0 MeV; 37 |mb/sr (90|'), 48 |mb/sr (125|') for 13.1 MeV (1972Gr19) 


level_energy_unit: KEV
level_comment:
E$944 (1972Gr19) 
$d|s/d|W=6 |mb/sr, d|s(90|')/d|s(150|')|?1 (1972Vo08) 
$d|s/d|W=19 |mb/sr (60|'), 14 |mb/sr (90|'), 15 |mb/sr (125|') for 12.0 MeV; 27 |mb/sr (90|'), 28 |mb/sr (125|') for 13.1 MeV (1972Gr19) 


level_energy_unit: KEV
level_comment:
E$968 (1972Gr19) 
$d|s/d|W=16 |mb/sr, d|s(90|')/d|s(150|')=1.2 (1972Vo08) 
$d|s/d|W=15 |mb/sr (60|'), 21 |mb/sr (90|'), 17 |mb/sr (125|') for 12.0 MeV; 25 |mb/sr (90|'), 20 |mb/sr (125|') for 13.1 MeV (1972Gr19) 


level_energy_unit: KEV
level_comment:
E$988 (1972Gr19) 
$d|s/d|W=20 |mb/sr, d|s(90|')/d|s(150|')|?1 (1972Vo08) 
$d|s/d|W=23 |mb/sr (60|'), 22 |mb/sr (90|'), 26 |mb/sr (125|') for 12.0 MeV; 40 |mb/sr (90|'), 35 |mb/sr (125|') for 13.1 MeV (1972Gr19) 


level_energy_unit: KEV
level_comment:
E$1023 (1972Gr19) 
$d|s/d|W=65 |mb/sr, d|s(90|')/d|s(150|')=1.1 (1972Vo08) 
$d|s/d|W=64 |mb/sr (60|'), 87 |mb/sr (90|'), 72 |mb/sr (125|') for 12.0 MeV; 123 |mb/sr (90|'), 77 |mb/sr (125|') for 13.1 MeV (1972Gr19) 


level_energy_unit: KEV
level_comment:
E$1043 (1972Gr19) 
$d|s/d|W=8 |mb/sr, d|s(90|')/d|s(150|')|?1.5 (1972Vo08) 
$d|s/d|W=48 |mb/sr (60|'), 43 |mb/sr (90|'), 22 |mb/sr (125|') for 12.0 MeV; 51 |mb/sr (90|'), 30 |mb/sr (125|') for 13.1 MeV (1972Gr19) 


level_energy_unit: KEV
level_comment:
E$1069 (1972Gr19) 
$d|s/d|W=9 |mb/sr, d|s(90|')/d|s(150|')|?1 (1972Vo08) 
$d|s/d|W=21 |mb/sr (60|'), 58 |mb/sr (90|'), 11 |mb/sr (125|') for 12.0 MeV; 25 |mb/sr (90|'), 15 |mb/sr (125|') for 13.1 MeV (1972Gr19) 


level_energy_unit: KEV
level_spin_parity: (1/2+)
level_comment:
E$1097 (1972Gr19) 
$d|s/d|W=163 |mb/sr, d|s(90|')/d|s(150|')=1.5 (1972Vo08) 
$d|s/d|W=207 |mb/sr (60|'), 357 |mb/sr (90|'), 190 |mb/sr (125|') for 12.0 MeV; 311 |mb/sr (90|'), 173 |mb/sr (125|') for 13.1 MeV (1972Gr19) 


level_energy_unit: KEV
level_spin_parity: (3/2+)
level_comment:
E$1125 (1972Gr19) 
$d|s/d|W=62 |mb/sr, d|s(90|')/d|s(150|')|?0.8 (1972Vo08) 
$d|s/d|W=46 |mb/sr (60|'), 74 |mb/sr (90|'), 61 |mb/sr (125|') for 12.0 MeV; 109 |mb/sr (90|'), 58 |mb/sr (125|') for 13.1 MeV (1972Gr19) 


level_energy_unit: KEV
level_spin_parity: (5/2+)
level_comment:
E$1150 (1972Gr19) 
$d|s/d|W=89 |mb/sr, d|s(90|')/d|s(150|')=1.6 (1972Vo08) 
$d|s/d|W=152 |mb/sr (90|'), 96 |mb/sr (125|') for 12.0 MeV; 215 |mb/sr (90|'), 81 |mb/sr (125|') for 13.1 MeV (1972Gr19) 


level_energy_unit: KEV
level_comment:
E$1176 (1972Gr19) 
$d|s/d|W=65 |mb/sr, d|s(90|')/d|s(150|')|?0.8 (1972Vo08) 
$d|s/d|W=88 |mb/sr (90|'), 68 |mb/sr (125|') for 12.0 MeV; 139 |mb/sr (90|'), 61 |mb/sr (125|') for 13.1 MeV (1972Gr19) 


level_energy_unit: KEV
level_spin_parity: (7/2+)
level_comment:
E$1215 (1972Gr19) 
$d|s/d|W=18 |mb/sr, d|s(90|')/d|s(150|')|?1 (1972Vo08) 
$d|s/d|W=57 |mb/sr (90|'), 30 |mb/sr (125|') for 12.0 MeV; 50 |mb/sr (90|'), 33 |mb/sr (125|') for 13.1 MeV (1972Gr19) 


level_energy_unit: KEV
level_comment:
E$1255 (1972Gr19) 
$d|s/d|W=49 |mb/sr, d|s(90|')/d|s(150|')=1.8 (1972Vo08) 
$d|s/d|W=188 |mb/sr (90|'), 118 |mb/sr (125|') for 12.0 MeV; 183 |mb/sr (90|'), 122 |mb/sr (125|') for 13.1 MeV (1972Gr19) 


level_energy_unit: KEV
level_comment:
E$1279 (1972Gr19) 
$d|s/d|W=48 |mb/sr, d|s(90|')/d|s(150|')=2.1 (1972Vo08) 
$d|s/d|W=88 |mb/sr (90|'), 73 |mb/sr (125|') for 12.0 MeV; 103 |mb/sr (90|'), 70 |mb/sr (125|') for 13.1 MeV (1972Gr19) 


level_energy_unit: KEV
level_comment:
E$1300 (1972Gr19) 
$d|s/d|W=32 |mb/sr, d|s(90|')/d|s(150|')=1.8 (1972Vo08) 
$d|s/d|W=79 |mb/sr (90|'), 28 |mb/sr (125|') for 12.0 MeV; 77 |mb/sr (90|'), 61 |mb/sr (125|') for 13.1 MeV (1972Gr19) 


level_energy_unit: KEV
level_comment:
E$1318 (1972Gr19) 
$d|s/d|W=20 |mb/sr (1972Vo08) 
$d|s/d|W=63 |mb/sr (90|'), 40 |mb/sr (125|') for 13.1 MeV (1972Gr19) 


level_energy_unit: KEV
level_comment:
E$1335 (1972Gr19) 
$d|s/d|W=26 |mb/sr, d|s(90|')/d|s(150|')=1.3 (1972Vo08) 
$d|s/d|W=65 |mb/sr (90|'), 51 |mb/sr (125|') for 12.0 MeV; 44 |mb/sr (90|'), 45 |mb/sr (125|') for 13.1 MeV (1972Gr19) 


level_energy_unit: KEV
level_comment:
E$1362 (1972Gr19) 
$d|s/d|W=12 |mb/sr, d|s(90|')/d|s(150|')=1.3 (1972Vo08) 
$d|s/d|W=31 |mb/sr (90|'), 24 |mb/sr (125|') for 13.1 MeV (1972Gr19) 


level_energy_unit: KEV
level_comment:
E$1382 (1972Gr19) 
$d|s/d|W=26 |mb/sr, d|s(90|')/d|s(150|')=1.5 (1972Vo08) 
$d|s/d|W=75 |mb/sr (90|'), 58 |mb/sr (125|') for 13.1 MeV (1972Gr19) 


level_energy_unit: KEV
level_comment:
E$1398 (1972Gr19) 
$d|s/d|W=18 |mb/sr (1972Vo08) 
$d|s/d|W=138 |mb/sr (90|') for 12.0 MeV; 49 |mb/sr (90|'), 29 |mb/sr (125|') for 13.1 MeV (1972Gr19) 


level_energy_unit: KEV
level_comment:
E$1425 (1972Gr19) 
$d|s/d|W=27 |mb/sr, d|s(90|')/d|s(150|')=1.3 (1972Vo08) 
$d|s/d|W=54 |mb/sr (90|') for 12.0 MeV; 56 |mb/sr (90|'), 47 |mb/sr (125|') for 13.1 MeV (1972Gr19) 


level_energy_unit: KEV
level_energy_info: ;ERR=?
level_comment:
$d|s/d|W=39 |mb/sr (90|') for 12.0 MeV; 36 |mb/sr (90|'), 36 |mb/sr (125|') for 13.1 MeV (1972Gr19) 


level_energy_unit: KEV
level_energy_info: ;ERR=?
level_comment:
$d|s/d|W=52 |mb/sr (90|') for 12.0 MeV; 42 |mb/sr (90|'), 36 |mb/sr (125|') for 13.1 MeV (1972Gr19) 


level_energy_unit: KEV
level_lifetime_unit: NS
level_comment:
T$quoted as 1-100 ns (1994Ob02) 
%IT$decay mode from |g|g(t). Estimated inner barrier height of 4.6 MeV {I+8-4} excludes SF decay mode (1994Ob02) 


level_energy_unit: KEV
level_energy_info: ;ERR=?
level_spin_parity: 1/2,3/2-
level_uncertain: S
level_comment:
E$S(n)+E(n), where S(n)=4786.39 {I9} (2017Wa10), E(n)=2 keV 
J$s-wave and p-wave capture in 0+ g.s. of {+232}Th; s-wave capture is expected to be dominant 


level_energy_unit: KEV
level_energy_info: ;ERR=?
level_spin_parity: 1/2,3/2-
level_uncertain: S
level_comment:
E$S(n)+E(n), where S(n)=4786.39 {I9} (2017Wa10), E(n)=24 keV 
J$s-wave and p-wave capture in 0+ g.s. of {+232}Th; s-wave capture is expected to be dominant 


level_energy_unit: KEV
level_spin_parity: 0+
level_lifetime_unit: D
level_comment:
|a decay was not observed: %|a<1|*10{+-4} (1955De47). 
|a-decay |G was calculated by 1978Pi14 and by 1987Be43 as 1.82|*10{+-39} MeV and 9.65|*10{+-39} MeV, respectively. 
|a and {+22}O decay probabilities were calculated by 1986Ru11 as 4.7|*10{+-29}/sec and 3.4|*10{+-5}/sec, respectively. Probability of decay by heavy-ion emission was calculated also by 1986Pi11, and {+26}Ne decay was suggested as the most probable decay mode. 
T 24.5 d (1931Cu01), 24.1 d {I2} (1939Sa11), 24.101 d {I25} (1948Kn23). 
T{-1/2}(2|b)>4.5|*10{+3} y for 2|n mode and >4.1|*10{+4} y for 0|n mode (2005Tr01) 


level_energy_unit: KEV
level_spin_parity: 0+
level_lifetime_unit: D
level_comment:
T$rounded value of 24.157 d {I73}, from counting of 63.3|g rays from {+234}Th decay and 1001|g from its daughter {+234m}Pa in equilibrium. 


level_energy_unit: KEV
level_spin_parity: (1/2+)
level_lifetime_unit: MIN
level_comment:
J$probable Nilsson configuration assignment 1/2[631] is from analogy with {+237}U (1972El21). 
T weighted average of 6.9 min {I2} by following the decay of |b- particles (1969Tr05); 7.3 min {I1} by following the decay of 417.0|g (1986Mi10); 6.9 min {I3} by following the decay of |b- particles, and 7.3 min {I3} by following the decay of 417.0|g (1989Yu01). 
Assignment: {+234}Th(n,|g), {+238}U(n,|a) chem, parent of {+235}Pa 


level_energy_unit: KEV
level_spin_parity: 0+
level_lifetime_unit: MIN
level_comment:
T$weighted average of 37.5 min {I15} (1973Or06), 37.5 min {I2} (1984Mi02), and 36 min {I3} (1973Ka10). 
%B-$only |b decay has been observed. Calculated T{-1/2}(|a)>10{+20} s (2019Mo01). 


level_energy_unit: KEV
level_spin_parity: (5/2+)
level_lifetime_unit: MIN
level_comment:
T$Weighted average of 4.69 min 60 (2000Xu02) and 5.0 min 9 (1993Yu03). 
J from syst at N=147 nuclides. 


level_energy_unit: KEV
level_spin_parity: 0+
level_lifetime_unit: MIN
level_comment:
T from 1999He01. Value also reported in 1999Yu08 and 1999Xi05 where an 89.0 |g ray with T{-1/2}=8.9 min {I15} has been tentatively assigned to the |b{+-} decay of {+238}Th. If this assignment is correct, these two half life measurements could be combined to obtain an improved value. 


level_energy_unit: KEV
level_lifetime_unit: NS
level_lifetime_info: ;ERR=GT
level_uncertain: ?
level_comment:
$ calculated half-lives (1997Mo25) of 1.77 s for |b decay and 0.135 s for |a decay suggest dominant |a decay, but proton decay is also possible 
E$ it is assumed that the observed fragments correspond to nuclei in their ground state 
J$ 7/2- predicted in theoretical calculations (1997Mo25) 
T$ lower limit from time-of-flight in 2006Ku07. Actual half-life is expected to be much longer as suggested by calculated values by 1997Mo25 and listed above 
$ Production |s<1.4 nb (2006Ku07) for possible 10 events 


level_energy_unit: KEV
level_spin_parity: (9/2-)
level_lifetime_unit: MS
level_comment:
$%|a=100 for {+211}Pa assumed by 2020Au04. Proton decay is allowed from S(p)=-700 {I70}, but no evidence was found for this decay mode by 2020Au04. 
$Compiler's note: theoretical T{-1/2}(|b)=1.77 s and T{-1/2}(|a)=0.032 s (2019Mo01) suggest dominant |a decay, with |?1.8% |e+|b{++} decay 
T$from three correlated decay chains, using maximum likelihood method (2020Au04). 
J$assigned by 2020Au04, based on favored |a decay of {+211}Pa g.s. to g.s. of {+207}Ac, J|p=(9/2-), as in {+207}Ac Adopted Levels in the ENSDF database (August 2010 update) 
$Measured E|a=8320 keV {I40} (2020Au04) 
$Measured production |s=20 pb (2020Au04) in {+181}Ta({+36}Ar,6n) at E({+36}Ar)=178-214 MeV. 
$Deduced Q(|a)({+211}Pa)=8480 keV {I40} (2020Au04) 
$Deduced mass excess ({+211}Pa)=22050 keV {I60} (2020Au04), compared to 22080 keV {I100} (from systematic trend in 2017Wa10: AME2016) 
$Deduced S(p)({+211}Pa)=-700 keV {I70} (2020Au04), compared to -730 keV {I100} (from systematic trend in 2017Wa10: AME2016) 
$Deduced S(2p)({+211}Pa)=1370 keV {I80} (2020Au04), compared to 1340 keV {I110} (from systematic trend in 2017Wa10: AME2016) 


level_energy_unit: KEV
level_lifetime_unit: MS
level_comment:
%A$only |a decay has been observed. Theoretical calculations in 2019Mo01 suggest the %|e+%|b{++} branch is less than 1%. 
T$from 2014Ya19, obtained by combining the results of 2014Ya19 and 1997Mi03. Others: 5.1 ms {I+61-19} (1997Mi03) 
$E|a=8250 keV {I20} from 2014Ya19, was obtained by combining the results of 2014Ya19 and 1997Mi03. Others: E|a=8270 keV {I30} very likely is emitted from the g.s. of {+212}Pa (1997Mi03) 


level_energy_unit: KEV
level_spin_parity: (3+)
level_lifetime_unit: MS
level_comment:
$%|a=100 for {+212}Pa assumed by 2020Au04. Proton decay is allowed from S(p)=-370 {I100}, but no evidence was found for this decay mode by 2020Au04. 
$Compiler's note: theoretical T{-1/2}(|b)=0.85 s and T{-1/2}(|a)=0.08 s (2019Mo01) suggest dominant |a decay, with |?9% |e+|b{++} decay 
T$from seven correlated decay chains, using maximum likelihood method (2020Au04), compared to 5.1 ms {I+61-19} in 1997Mi03 (Phys. Rev. C 55, 1555) and T{-1/2}=5.1 ms {I+51-17} measured by 2014Ya19 (J. Phys. G41, 105104) 
J$assigned by 2020Au04, based on favored |a decay of {+212}Pa g.s. to g.s. of {+208}Ac, J|p=(3+), as in {+208}Ac Adopted Levels in the ENSDF database (June 2007 update) 
$Measured E|a=8240 keV {I20} (2020Au04), compared to 8270 keV {I30} in 1997Mi03 and E|a=8250 keV {I20} measured by 2014Ya19 
$Deduced Q(|a)({+212}Pa)=8400 keV {I20} (2020Au04). Other: 8420 keV {I50} in 2017Wa10: AME2016 
$Deduced mass excess ({+212}Pa)=21570 keV {I70} (2020Au04), compared to 21590 keV {I70} (2017Wa10: AME2016) 
$Deduced S(p)({+212}Pa)=-370 keV {I100} (2020Au04), compared to -390 keV {I100} (2017Wa10: AME2016) 
$Deduced S(2p)({+212}Pa)=1800 keV {I90} (2020Au04), compared to 1770 keV {I90} (2017Wa10: AME2016) 


level_energy_unit: KEV
level_spin_parity: 9/2-
level_lifetime_unit: MS
level_comment:
J$Based on favored |a-decay chain from {+213}Pa g.s. to g.s. of {+209}Ac, J|p=9/2-, to g.s. of {+205}At, J|p=9/2- (firm J|p=9/2-({+205}At) in 2020Ko17). Configuration: |p (h{-9/2}{++1}). 
T$Weighted average of 5.3 ms {I+40-16} (1995Ni05 - from measured time intervals between implantation of evaporation residue (Er) and the first |a-decay - also in 2000He17 and 1996An21 - same research group of 1995Ni05) and 4.9 ms {I+59-18} (2020Au04 - extracted with the exact maximum likelihood method of three correlated |a decay chains). Uncertainty is the lower input value. 
E|a: 8236 keV {I20}, 8236 keV {I15}, and 8236 keV {I15} reported in 1995Ni05, 1996An21, and 2000He17, respectively, all from the same group. 8210 keV {I20} in 2020Au04. 
$Proton decay is allowed for S(p)=-250 {I60}, However, 2020Au04 noted - proton emission was found unlikely. 


level_energy_unit: KEV
level_lifetime_unit: MS
level_comment:
$Only the |a decay has been observed. Calculated %|b|?0.3 (2019Mo01). 
T$from 2000He17 and 1995Ni05. 
$E|a=8116 keV {I15} (2000He17), other: 8116 keV {I20} (1995Ni05). 2000He17 and 1995Ni05 reported the same measurement. 
$Maximum production |s= 3.4 nb {I1} at 5.3 MeV/A (1995Ni05). 


level_energy_unit: KEV
level_lifetime_unit: S
level_comment:
%EC from gross |b-decay strength function (1973Ta30). 
T$average of data from 1998Ik01: 0.15 s {I+7-4} and 0.14 {I+5-3}. Others: 0.105 s {I12} (1996An21); 0.17 s {I+10-4} (1979Sc09); 0.20 s {I4} from 1971Su14. 
$E|a=7948 keV {I15}, 7815 keV {I15}, 7793 keV {I15} (2000He17); 7960{I50}, 7830 {I50} (1998Ik01); 7948 keV {I10}, 7856 keV {I20}, 7838 keV {I20}, 7815 keV {I20} (1996An21) 


level_energy_unit: KEV
level_lifetime_unit: MS
level_comment:
T$from 2019Zh23. Value is 0.15 s {I+6-4} in {+216}Pa Adopted Levels in the ENSDF database (March 2007 update) 
$Emitted E|a=7952 keV {I17}, I|a=71% {I42}, and E|a=7838 keV {I20}, I|a=29% {I23} (2019Zh23) 


level_energy_unit: KEV
level_spin_parity: (9/2-)
level_lifetime_unit: MS
level_comment:
$Only the |a decay was observed. Gross |b decay theory calculations of 1973Ta30 and theoretical calculations of 1997Mo25 give T{-1/2}(|e)|?300 sec and 97 sec, respectively which correspond to |e decay branch of |?0.0012% and 0.0036%, respectively. 
E$the observed 3.8-ms activity is assumed to correspond to the ground state of {+217}Pa 
J$favored |a decay chain {+217}Pa -> {+213}Ac -> {+209}Fr; the g.s. J|p=9/2- for {+209}Fr 
T$from |a-decay curve (2002He29). Measured half-lives are: 4.9 ms {I+6-8} (1979Sc09), 3.4 ms {I2} (1996An21), 2.3 ms {I+5-3} (1998Ik01), 3.4 ms {I1} (2000He17), 3.8 ms {I2} (2002He29). Note that 2002He29, 2000He17 and 1996An21 are from the same group at GSI using SHIP. Values from 1979Sc09 and 1998Ik01 seem discrepant 
T$1995AnZY and 1995NiZS superseded by 1996An21 


level_energy_unit: KEV
level_spin_parity: (23/2-)
level_lifetime_unit: MS
level_lifetime_info: ;ISO=M1
level_comment:
J$2002He29 and other experimental papers proposed 29/2+, but analysis in 2013As01 based on systematics of semi-closed shell nuclei suggested (23/2-) with a fully aligned configuration= |ph{-9/2}{+2}~#|nf{-7/2}{+1}. 2014Ri07 also supported 23/2- from theoretical calculations of T{-1/2}=1.1 ms for 23/2- and 60 ms for 29/2+ using different models 
T$from |a-decay curves for several |a groups (2002He29). Measurements are: 1.6 ms {I+10-5} (1979Sc09); 1.5 ms {I+9-4} (1998Ik01); 1.5 ms {I1} for 10155|a, 1.3 ms {I+4-2} for 9912|a, 1.4 ms {I2} for 9763|a (2000He17); 1.08 ms {I3} (2002He29, weighted average of 1.08 ms {I2} for 10157|a, 0.95 ms {I5} for 9697|a, 0.94 ms {I9} for 9552|a, 1.11 ms {I20} for 9533|a, 1.03 ms {I13} for 8306|a). Note that 2002He29 and 2000He17 are from the same group at GSI using SHIP facility. Others: 0.9 ms {I6} (1995AnZY) 1.5 ms {I2} (1995NiZS), both from the same group 
E$approximate energy deduced by the evaluator from energy difference of the 10157- and 8337-keV |a particles which were emitted from the 1.2-ms and 3.6-ms states, respectively, by assuming these |a particles decay to the g.s. 
%A$from 2002He29, deduced from ratio of 0.15 {I2} for number of {+217g}Pa nuclei from the {+217m}Pa isomer decay and the total number of {+217g}Pa nuclei, and using the number of |a decay events from each of the two activities; the ratio itself was extracted from the fitting of the measured decay curve for the implanted evaporation residues and the |a decays as a function of time. 


level_energy_unit: KEV
level_spin_parity: (8-)
level_lifetime_unit: US
level_comment:
$Only the |a decay has been observed, with E|a=9610 {I14} and 9524 {I16} (2020Zh01); 9616 {I15} and 9544 {I15} (2000He17); and 9614 {I20} and 9535 {I15} (1979Sc09). Theoretical partial T{-1/2}=57.4 s for {+218}Pa |e+|b{++} decay (2019Mo01) gives %|e+%|b{++}=2|*10{+-4} 
$The |a decay feeds the (5+) g.s. and a (4+) excited state at 92 keV in {+214}Ac, as proposed in 1979Sc09 
T$weighted average of 107 |ms {I5} (2020Zh01), 113 |ms {I10} (2000He17) and 0.12 ms {I+4-2} (1979Sc09). 


level_energy_unit: KEV
level_spin_parity: (1-)
level_lifetime_unit: US
level_lifetime_info: ;ISO=M
level_comment:
$Only the |a decay has been observed, with E|a=9691 {I15} and tentative 9596 {I21} (2020Zh01) 
$The |a decay feeds the (5+) g.s. and a (4+) excited state at 92 keV in {+214}Ac, proposed by 2020Zh01 
E$deduced by evaluator from differences E|a values of 9610 {I14} from the g.s. to g.s. of {+214}Ac and 9691 {I15} from the isomer to g.s. of {+214}Ac, as given in 2020Zh01, and each corrected for recoil. 2020Zh01 give E(level)=83 {I6}. 
T$from 2020Zh01, deduced from nine (implants)-|a1-|a2 correlated decay chains) 


level_energy_unit: KEV
level_spin_parity: 9/2-
level_lifetime_unit: NS
level_comment:
E$detected activity is assumed to correspond to the g.s. of {+219}Pa 
$%|e+%|b{++}|?5|*10{+-9} (1973Ta30, theory); 5.4|*10{+-8} (2019Mo01, theory). 
T$weighted average of 60 ns {I+28-15} (2017Su18) and 53 ns {I10} (1987FaZS). 
J$favored |a decay (HF=1.0) to {+215}Ac (J|p=9/2-). 
$E|a=9976 keV {I37} (2017Su18) from the decay of {+219}Pa. This can be compared with 9900 keV {I50} in {+219}Pa |a decay dataset in the ENSDF database (Sep 2013 update) 


level_energy_unit: KEV
level_energy_info: ;OFF=X
level_lifetime_unit: US
level_comment:
J|p=(1-) or (9-) depending on which isomer in {+216}Ac is fed by the |a decay of this level. 
T from 1987FaZS; other: 1.1 |ms {I1} (1987MiZO) 
%EC+%B+ From gross |b decay strength function (1973Ta30). From log| {Ift}>3.6 one obtains a limit of I(|e+|b{++})<0.008% to any single level. 


level_energy_unit: KEV
level_spin_parity: (1-)
level_lifetime_unit: US
level_comment:
T,J$from 2017Hu08 (Phys. Rev. C 96, 014324; from the same group as 2018Hu13). Others: 0.78 |ms {I16} in {+220}Pa Adopted Levels in the ENSDF database (Oct 2010 update), where value was adopted from 1987FaZS (Contribution K12, Proc. 5th Int. Conf. Nuclei Far from Stability, Rosseau Lake, Canada); 1.1 |ms {I1} in 1987MiZO (Inst. Nucl. Study, Univ. Tokyo, Ann.Rept., 1986, p.37) 


level_energy_unit: KEV
level_energy_info: ;OFF=X
level_lifetime_unit: US
level_comment:
E$from Adopted Levels of {+220}Pa in ENSDF database (2011 update) 
T$from time correlation between evaporation residue (Er) and the subsequent |a decay to g.s. in {+216}Ac (2019Zh54). 


level_energy_unit: KEV
level_spin_parity: 1-
level_lifetime_unit: US
level_comment:
$Production cross section=6.5 nb {I+9-7} (2017Hu08) 
J$assigned by 2017Hu08 based on systematics of unhindered |DL=0 g.s. to g.s. |a transitions with reduced width of |?80 keV in N=129 nuclei from At to Ac (reduced width=77 keV {I13} in 2017Hu08 for {+220}Pa decay), and probable configuration=|n2g{-9/2}~#|p1h{-11/2}. 
T$measured by 2017Hu08 from |a-decay curve followed for 5 |ms. This value can be compared with 0.78 |ms {I16} in {+220}Pa Adopted Levels in the ENSDF database (Oct 2010 update), where value was adopted from 1987FaZS (Contribution K12, Proc. 5th Int. Conf. Nuclei Far from Stability, Rosseau Lake, Canada); and 1.1 |ms {I1} in 1987MiZO (Inst. Nucl. Study, Univ. Tokyo, Ann.Rept., 1986, p.37) 
$Measured E|a=9520 keV {I16} (2017Hu08) emitted by the decay of the ground state of {+220}Pa. Systematic uncertainty of 15 keV is included in the quoted E|a values, as stated in authors' paper 2017Su18 (Phys. Lett. B771, 303). This value can be compared with 9650 keV {I50} in {+220}Pa |a decay dataset in the ENSDF database (March 2007 update), where value was adopted from 1987FaZS (Contribution K12, Proc. 5th Int. Conf. Nuclei Far from Stability, Rosseau Lake, Canada); and 9160 keV {I55} in 1987MiZO (Inst. Nucl. Study, Univ. Tokyo, Ann.Rept., 1986, p.37) 
$Compiler's note: E|a=9520 keV {I16} gives Q(|a)=9696 keV {I16} which agrees with Q(|a)=9650 keV {I50} (2017Wa10: AME-2016) from systematic trend, whereas the previous E|a values in literature give Q(|a) values of 9829 keV {I50} (1987FaZS) and 9330 keV {I55}, both in disagreement with systematic value from 2017Wa10. 


level_energy_unit: KEV
level_lifetime_unit: US
level_comment:
T$from 9522|a(t) (2019Ya04) 
$Measured E|a=9522 keV {I25} (2019Ya04) extracted from pile-up traces. 


level_energy_unit: KEV
level_lifetime_unit: US
level_comment:
T$from 9542|a(t) (2023Lu04) 
$Measured E|a=9542 keV {I6} (2023Lu04) extracted from general least-square superpulse fitting algorithm. 


level_energy_unit: KEV
level_spin_parity: 9/2-
level_lifetime_unit: US
level_comment:
Only |a decay was observed. From gross |b{+-} decay theory of 1973Ta30, %|e+%|b{++}<1.0|*10{+-6} 
J favored |a decay to {+217}Ac g.s. (J|p=9/2-). 
T measurement of 1989Mi17. Other measurement: 6.1 |ms {I+37-24} (1983Hi12). 


level_energy_unit: KEV
level_lifetime_unit: MS
level_comment:
$Only the |a decay has been observed for the decay of {+222}Pa. Theoretical partial T{-1/2}=21.3 s for {+222}Pa |e decay (2019Mo01) gives %|e+%|b{++}=0.02. Other: %|e+%|b{++}|?4|*10{+-4} from gross |b{+-} decay calculations (1973Ta30) 
$1985Po14: theoretical calculation of probability for heavy-ion emission. 
E$observed activity is assumed to correspond to the g.s. of {+222}Pa 
T$unweighted average of 2.76 ms {I+43-33} (2021Hu18, {+222}Pa fragments and |a decay correlated decay curve); 4.5 ms {I3} (2019Mi08, time correlations between {+222}Pa fragments and subsequent |a decays); 3.3 ms {I3} (1995AnZY); 2.9 ms {I+6-4} (1979Sc09); 5.7 ms {I5} (1970Bo13). Weighted average is 3.85 ms {I47}, but with large reduced |h{+2} of 7.7 versus 2.4 at 95% confidence level. 


level_energy_unit: KEV
level_lifetime_unit: MS
level_comment:
T$weighted average of 4.9 ms {I4} (1999Ho28) and 6.5 ms {I10} (1970Bo13). 
%|e+%|b{++}<1.0|*10{+-3}, theory (1973Ta30). 


level_energy_unit: KEV
level_spin_parity: (5-)
level_lifetime_unit: S
level_comment:
J$tentative assignment by 1996Li05, based on possible configuration= |n5/2[633]~#|p5/2[523]; 5/2[633] from g{-9/2} neutron orbital, and 5/2[523] from h{-9/2} proton orbital; single-particle assignments are based on theoretical calculations by 1991Cw01 and 1984Le04 
T$from |a-decay curves; weighted average of 0.850 s {I20} (1997Wi15), 0.79 s {I6} (1996Li05), 0.95 s {I15} (1970Bo13). Other: 0.60 s {I5} (1958To25, estimated from measured E|a and Geiger-Nuttal law) 
%EC+%B+$|?0.1 (from gross |b-decay theory, 1973Ta30), <9% (from |b and |a decay theoretical half-lives in 2019Mo01) 
$Measured E|a of the main |a transition=7490 {I10} (1970Bo13); 7489 (1987FuZT); 7488 (1996Li05); 7522 (average of four values, 2003Ni10). 


level_energy_unit: KEV
level_lifetime_unit: S
level_comment:
T measured values: 1.8 s {I3} (1970Bo13), 1.7 s {I1} (1978IbZZ). Other measurements: |?2 s (1951Ke53), 0.8 s {I3} (1958To25). 
%|a: only |a decay was observed. From gross |b decay theory of 1973Ta30, %|e<0.03 


level_energy_unit: KEV
level_lifetime_unit: MIN
level_comment:
Branchings were obtained by 1964Mc21 from the |a intensities in {+226}Pa |a decay and in {+226}Th daughter's |a decays. 
T measured by 1951Me10. 


level_energy_unit: KEV
level_spin_parity: (5/2-)
level_lifetime_unit: MIN
level_comment:
$Decay modes from |eK(exp)/|a=0.18 {I2} (1951Me10). 
T$from |a-decay curve (1951Me10) 
J$favored |a decay (HF=2.5) to {+223}Ac ground state, (5/2-). 1990Sh15 (also 1990Sh16) suggested J|p=5/2-, whereas 1989Ah05 preferred J|p=5/2+ for {+223}Ac g.s. 


level_energy_unit: KEV
level_spin_parity: 3+
level_lifetime_unit: H
level_comment:
J log| {Ift}=7.4 to 2+, 1900 level (log| {If{+1u}t}=6.6); log| {Ift}=6.8 to 4+, 1432 level (log| {If{+1u}t}=7.0); log| {If{+1u}t}=10.3 to 5-, 519 level (log| {Ift}=9.4); from configuration based on |m 
T from 1951Me10; other: 29 h {I1} (1964Ge08) 
MOMM1 from low temperature nuclear orientation (1989He07) 
%EC+%B+,%A$from |a/(|a+|e+|b{++})=0.020 {I2} (1994Ah03); other: (|e+|b{++})/|a=53 {I5} (1951Me10) 
CONF from comparison with |m (1989He07) 


level_energy_unit: KEV
level_spin_parity: (5/2+)
level_lifetime_unit: D
level_comment:
T$measurement of 1987Ah05. Other measurement: 1.4 d {I4} (1949Hy01). 
J log| {Ift}=5.6 for the |e branch to 5/2+ {+229}Th g.s.; systematics of 5/2[642] Nilsson orbitals. 
$|b{-2}=0.185, |b{-3}=0.0 or 0.08 from A{-2}=1.13 in |a(|q) (2002De24) 
%|e and %|a were determined by 1987Ah05 from K x-ray and |a particle intensities. Other measurements: %|e=99.75, %|a=0.25 (1951Sl94). |a(|q) from oriented nuclei in {+232}Th(p,4n): 5580|a(|q): A{-2}=1.13 {I11}; 5670|a(|q): A{-2}=0.81 {I11} (1999Sc17,1997Sc26) 


level_energy_unit: KEV
level_uncertain: ?
level_comment:
E$J|p=3/2-, reported in 1982Ah08, not in 1994Le22 
J strongest peak in the spectrum; therefore, it populates the same state as the {+231}Pa target ground state (1982Ah08). 


level_energy_unit: KEV
level_spin_parity: 5/2+
level_lifetime_unit: D
level_comment:
E$2015Ah04 discuss a possible 5/2+ and 5/2- parity-doublet structure close to the ground state, the 5/2- state with Nilsson configuration of 5/2[523]. From a |g-ray loop of 241.84 {I4}-(122.52 {I2}+119.26 {I3}), energy of 5/2- state is deduced as 60 eV {I50} (2015Ah04), however, due to large uncertainty, existence of this state, thus the parity-doublet structure remains uncertain 
T$from {+229}Pa Adopted Levels in ENSDF database (as of June 2008) 


level_energy_unit: KEV
level_spin_parity: 3/2-
level_comment:
E$level supported by |g|g-coin data in the present experiment and by pairs of |g rays with an energy difference of 12.20 keV {I4} 


level_energy_unit: KEV
level_spin_parity: 7/2+
level_comment:
E$level proposed in 2015Ah04 from depopulating |g-transitions and |g|g-coin data 
$Another less likely configuration=5/2[523]. Multipolarity of 114.03|g is needed to confirm the assignment, whether 5/2[642] or 5/2[523]. 


level_energy_unit: KEV
level_spin_parity: (3/2)
level_comment:
$Configuration: this level may be 1/2 or 3/2 member of 1/2[651] band or 0+ state built on the 12.2 keV, 1/2,3/2- level 


level_energy_unit: KEV
level_spin_parity: (5/2+)
level_lifetime_unit: D
level_comment:
$Measured |a/(|a+|e)=0.0053 {I10} (2018Gr09) by the extraction of {+225}Ac from the decay of {+229}Pa after about a week of decay. This value can be compared with %|a=0.48 {I5} in {+229}Pa Adopted Levels in the ENSDF database, where value is adopted from 1987Ah05: Nucl. Phys. A472, 285. 
J$From Adopted Levels of {+229}Pa in the ENSDF database (June 2008 update) 
T$measured by 2018Gr09, as weighted average of the following eight values deduced from decay curves for 117.2- and 119.0-keV |g rays at four different proton bombarding energies: 1.83 d {I5}, 1.49 d {I2}, 2.08 d {I6}, 1.60 d {I2}, 1.66 d {I5}, 1.47 d {I2}, 1.78 d {I10}, 1.43 d {I3}. This value can be compared with 1.50 d {I5} in {+229}Pa Adopted Levels in the ENSDF database, where value is adopted from 1987Ah05 
$Compiler's note about T{-1/2}: the eight values measured by 2018Gr09 represent a discrepant dataset. Regular weighted averaging procedure gives T{-1/2}=1.55 d {I5}, not an uncertainty of 0.01 d as in 2018Gr09. Moreover, reduced |h{+2} is 24 in comparison to critical |h{+2}=2.1 at 95% confidence level. Weighted averaging by the method of limitation of statistical weights method gives 1.53 d {I5} with reduced |h{+2}=14, by rejecting the 2.08 d {I6} value as an outlier. Weighted averaging by Normalized Residuals method (NRM), which adjusts uncertainties in data points considered as outliers, gives 1.50 d {I3}, with reduced |h{+2}=5, still too large to be acceptable. It would seem that unweighted averaging, which gives a value of 1.67 d {I8} is perhaps an appropriate way to deal with this dataset. 


level_energy_unit: KEV
level_spin_parity: (5/2+)
level_lifetime_unit: D
level_comment:
J$From Adopted Levels of {+229}Pa in the ENSDF database (June 2008 update) 
T$from 119|g(t), result is average of T{-1/2} from three samples (2012Km01). 


level_energy_unit: KEV
level_spin_parity: 2-
level_lifetime_unit: D
level_comment:
$%|a=0.0032 {I1} (1966Ba14); 0.0031 {I5} (1965Br32); 0.0043 {I7} (1964Mc21); 0.003 (1950Me08). 
$%|b{+-} and %|e branchings have been deduced by evaluator using |g-ray data and decay schemes given in 1994Ac02 and 1972Va24, assuming no direct decay to the ground states of {+230}U and {+230}Th and that |S(I{-|g}+I{-ce})=100 for transitions feeding the ground states. Other decay measurements: 1948St42, 1955On07, 1966Ba14, 1970Lo02, 1971Ku25. 
$T{-1/2}: Weighted average of 17.0 d {I5} (1948St42) and 17.7 d {I5} (1949Os01) 
MOMM1$Static nuclear orientation with |g-ray detection (1989He07) 
J$|b feedings to 1- and 3+ states in {+230}Th; finger-print method in (pol d,t) 
$Analogy to {+231}Pa and to {+229}Th would suggest that the odd proton and odd neutron in {+230}Pa are in the 1/2[530] and 5/2[633] orbits, respectively. From the Gallagher-Moszkowski coupling rule, these states would be expected to couple to J|p=2-. 1989He07 suggests octupole deformation in {+230}Pa ground state with a proton in the 5/2[642] and a neutron in the 1/2[631] orbitals by comparing measured and calculated |m values for various Nilsson states. Note that 2013Ko11 assigns the ground state configuration as |p1/2[530]+|n3/2[631] (K{+|p}=2{+-}). 


level_energy_unit: KEV
level_spin_parity: 0+
level_lifetime_unit: KEV
level_comment:
$Spreading width (neutron and fission decays)=92 keV {I14} (1991Ja04) 
$Deduced Coulomb displacement energy=19856 keV {I17} (1991Ja04) 
J$IAS of {+230}Th g.s. 
$|G from 1991Ja04 


level_energy_unit: KEV
level_spin_parity: 0+
level_lifetime_unit: KEV
level_comment:
$The proton branching from the level was determined by 1991Ja04 from triton- and proton-cross sections. 
$|G from 1991Ja04 
$Deduced Coulomb displacement energy=19856 keV {I17} (1991Ja04) 
$Spreading width (neutron and fission decays)=92 keV {I14} (1991Ja04) 


level_energy_unit: KEV
level_spin_parity: (4-)
level_comment:
$In 2012Ko37, this level was considered as possible 6- member of configuration=|p1/2[530]-|n5/2[633], K|p=2- 


level_energy_unit: KEV
level_spin_parity: 3/2-
level_lifetime_unit: Y
level_comment:
$%{+24}Ne/%|a=13.4|*10{+-12} {I17} track-recording glass detector used by 1992Pr05. Others: 1985Sa40, 1986Tr10. %{+24}Ne/%{+23}F|?1347. One track identified by 1992Pr05 as probably {+23}F was observed, %{+23}F/%|a=9.9|*10{+-15} (1995Ar33). 
J$spin from electron paramagnetic resonance (1961Ax01,1960Ky01); and optical spectroscopy (1961Ri06,1934Sc04). Parity from 183.5|g E1 from J{+|p}=5/2+. The following suggests a 1/2[530] Nilsson orbital configuration: 1) experimental decoupling parameter a(exp.)=-1.5 compares with theoretical value a(theory)=-1.8 (1977Ch27). 2) Same ground state Nilsson configuration in {+233}Pa. 3) {+230}Th(|a,t) experimental spectroscopic factors are consistent with a 1/2[530] configuration assignment. 4) |m=1.99 {I2} (2019StZV) agrees with theoretical value of 2.25 for 1/2-1/2[530] Nilsson orbital (1982Li02]. 
MOMM1$electromagnetic double resonance (ENDOR) (1961Ax01); value of 2.01 {I2} in 1961Ax01 is given as 1.99 {I2} in 2019StZV evaluation 
MOME2$estimated by 1978Fr28 from B(E2) for 58.6 level, not a measured quadrupole moment. 
T$from 2020Je01, determination of average (by power-moderated mean (PMM) method of S. Pomme and J.D. Keightley, Metrologia, 52, S17-26 (2015)) {+231}Pa activity concentration measured independently at six metrology laboratories using a variety of methods: 4|p |a liquid scintillation counting, triple to double coincidence ratio (TDCR), CIEMAT/NIST, 4|p |a liquid scintillation-|g(NaI) coincidence counting, 4|p(|a(P)) |a|g-coin counting, |a counting at a defined solid angle at the following labs: NPL-Teddington, JRC-Geel, LNE-LNHB-Gif-sur-Yvette, NIM-Beijing, NRC-Ottawa, and PTB-Braunschweig; while atom concentration of the material was measured at LLNL-Livermore by isotope dilution mass spectrometry (IDMS), using {+233}Pa as a tracer. Others: 32765 y {I110} (1969Ro33, calorimetry method, value of 32713 y {I110} increased by 52 y due to change in Q(|a) from 5140 to 5149.9 {I8}); 32340 y {I115} (1968Br04, radiometric method, with quoted uncertainty of 230 y at 95% confidence level); 32647 y {I260} (1961Ki05, calorimetry method, value of 32480 y {I260} increased by 167 y, due to change in the Adopted decay scheme); 34300 y {I300} (1949Va02, radiometric method); 32800 y (cited by 1968Br04 from unpublished work of J. Fleggenheimer and A.G. Maddock); 32000 y {I3200} (cited by 2020Je01 from measurement by A.v. Grosse, Naturwiss. 20, 505 (1932)). Weighted average of values from 2020Je01, 1969Ro33, 1968Br04 and 1961Ki05 is 32570 y {I100}, while PMM method (used in 2020Je01) gives 32570 y {I98} 
$T{-1/2}(SF)|>1.1|*10{+16} y (1952Se67) (11 fission events observed) 


level_energy_unit: KEV
level_spin_parity: 7/2-
level_lifetime_unit: PS
level_comment:
T$from |b{+-} decay, (25.6|g)(ce(L) for 58.6|g)(t) (1975Ho14). Other: 281 ps {I17}, deduced from B(E2) in Coulomb excitation. 


level_energy_unit: KEV
level_spin_parity: 5/2+
level_lifetime_unit: NS
level_comment:
T$from |b{+-} decay, (|b(84|g ce)(t)) (1975Ho14). Others: 43.7 ns {I5} (1972Mc29, a time interval distribution method); 41 ns {I4} (1955St88, (25.6|g)|b(t) and (84.2|g)|b(t)). 
MOME2$Mossbauer effect (1978Fr28), deduced from measured Q(84.2 level)/Q(g.s.)=-0.4 {I1}, and estimated Q(g.s.)=-1.72 {I5} 
J$25.6|g E1 to 7/2-, 84.2|g E1 to 3/2-. HF=3.1 from {+235}Np |a decay suggests strong mixing with 5/2+, 5/2[642] level at 183.5 keV. 


level_energy_unit: KEV
level_spin_parity: 3/2+
level_lifetime_unit: NS
level_comment:
J$102.3|g (E1) to 3/2-, 18.1|g M1+E2 to 5/2+, 93.0|g to 1/2-. 
T$combined for 101.4+102.3 levels (1975Ho14, |b{+-} decay) 


level_energy_unit: KEV
level_spin_parity: 5/2+
level_lifetime_unit: NS
level_lifetime_info: ;ERR=LE
level_comment:
J$Favored |a decay (HF=2.9) from 5/2+, |p5/2[642] parent {+235}Np strongly suggests 5/2+, |p5/2[642] for 183.5 level in {+231}Pa 
T$from |b{+-} decay, |b(ce(M) for 81.2|g+82.1|g)(t) (1975Ho14) 


level_energy_unit: KEV
level_spin_parity: (1/2+)
level_comment:
J$|g rays to 1/2-, 3/2- and 3/2+. Upper limits of |g-intensities and ratio of intensities of [E1] transitions to the ground-state band support spin of 1/2+. With this level assigned as the bandhead, energies of the higher members of the rotational band are in agreement 


level_energy_unit: KEV
level_comment:
$In (|a,t), this level was assigned as bandhead of |p1/2[400] band, but in later studies using |g-ray data from reactions, a 273.7 level was assigned as bandhead of |p1/2[400]+|p1/2[660] mixed configuration. It should be noted that |p1/2[400] band assignment to two levels in (|a,t) seemed tentative, based only on level energies. 


level_energy_unit: KEV
level_spin_parity: (3/2-)
level_comment:
J$|g to 5/2+; possible |g to 3/2-. This level as bandhead of |p3/2[521] was proposed in (|a,t) based on a comparison of experimental spectroscopic factor with DWBA calculation for 7/2- member at 676 keV 


level_energy_unit: KEV
level_spin_parity: (11/2-)
level_comment:
$In Fig. 13 of 1975Er01, this level is listed with configuration of 3/2[521], but not discussed in the text 
$d|s/d|W=4.1 |mb/sr {I5} 


level_energy_unit: KEV
level_spin_parity: 1/2-
level_comment:
$E2 R.M.E. (from 3/2-,g.s.)=-2.37 {I13}. 
$B(E2)(from 3/2-,g.s.)=1.40 {I+16-15}. 
$Sufficient information is lacking for deducing level T{-1/2}. 


level_energy_unit: KEV
level_spin_parity: 7/2-
level_lifetime_unit: PS
level_comment:
$E2 R.M.E. (from 3/2-,g.s.)=+3.868 {I+107-96}. 
$B(E2)(from 3/2-,g.s.)=3.74 {I+21-18}. Other: 4.5 {I7} and 5.9 {I9} (1992De51) 
T$deduced by evaluators from B(E2) for 58.6|g. This value is in agreement with 274 ps {I10} from |g(ce)(t) in {+231}Th |b{+-} decay (1975Ho14) 


level_energy_unit: KEV
level_spin_parity: 5/2-
level_comment:
$E2 R.M.E. (from 1/2-,8.8)=+3.12 {I+56-37}. 
$B(E2)(from 1/2-,8.8)=3.2 {I+13-7}. 
$E2 R.M.E. (from 3/2-,g.s.)=1.899 {I+83-88}. 
$B(E2)(from 3/2-,g.s.)=0.90 {I8}. Other: 1.0 {I3} (1992De51) 
$Sufficient information is lacking for deducing level T{-1/2}, as 77.6|g is a double placement with undivided intensity, and I|g(68.5|g) is unknown 
$In Fig. 9 of 1992De51, branching ratio of 87% (apparently I(|g+ce)) for an M1 transition of 19.0 keV to the 7/2- member of the band at 58.5 keV was calculated using rotational model, Q{-0} and (g{-K}-g{-R}) parameters. 


level_energy_unit: KEV
level_spin_parity: 5/2+
level_comment:
$E1 R.M.E. (from 3/2-,g.s.)=+3.62|*10{+-4} {I+70-170}. 
$B(E1)(from 3/2-,g.s.)=3.3|*10{+-8} {I+14-24}. 
$E1 R.M.E. (from 7/2-,58.5)=+2.140|*10{+-3} {I+160-90}. 
$B(E1)(from 7/2-,58.5)=0.57|*10{+-6} {I+9-4}. 
$Sufficient information is lacking for deducing level T{-1/2}, as the intensity of the 83.8|g is a lower limit and that of the 25.4|g is unknown 


level_energy_unit: KEV
level_spin_parity: 9/2+
level_comment:
$E3 R.M.E. (from 3/2-,g.s.)=+0.646 {I+54-277}. 
$B(E3)(from 3/2-,g.s.)=0.104 {I+19-70}. 
$Sufficient information is lacking for deducing level T{-1/2} 


level_energy_unit: KEV
level_spin_parity: 11/2-
level_lifetime_unit: PS
level_comment:
$E2 R.M.E. (from 7/2-,58.5)=+5.51 {I+23-21}. 
$B(E2)(from 7/2-,58.5)=3.8 {I3}. 
T$deduced by evaluators from B(E2) and |g branching ratio for 110|g 


level_energy_unit: KEV
level_spin_parity: 11/2+
level_comment:
$E3 R.M.E. (from 5/2-,77.5)=+0.73 {I+29-30}. 
$B(E3)(from 5/2-,77.5)=0.09 {I+8-6}. 
T$sufficient information is lacking for deducing level T{-1/2} 


level_energy_unit: KEV
level_spin_parity: 9/2-
level_lifetime_unit: PS
level_comment:
$E2 R.M.E. (from 5/2-,77.5)=+3.885 {I+87-96}. 
$B(E2)(from 5/2-,77.5)=2.52 {I+11-13}. 
$E2 R.M.E. (from 7/2-,58.5)=+1.43 {I+12-15}. 
$B(E2)(from 7/2-,58.5)=0.26 {I5}. 
$M1 R.M.E. (from 11/2-,168.7)=-2.53 {I+21-30}. 
$B(M1)(from 11/2-,168.7)=0.53 {I+14-8}. 
T$deduced by evaluators from B(E2) and branching ratio for 115.5|g 


level_energy_unit: KEV
level_spin_parity: 15/2+
level_lifetime_unit: PS
level_comment:
$E2 R.M.E. (from 11/2+,171.7)=+6.10 {I+103-42}. 
$B(E2)(from 11/2+,171.7)=3.1 {I+11-4}. 
$E3 R.M.E. (from 9/2-,193.0)=+0.86 {I+34-29}. 
$B(E3)(from 9/2-,193.0)=0.07 {I+7-4}. 
$M1 R.M.E. (from 13/2+,189.1)=+0.419 {I+55-80}. 
$B(M1)(from 13/2+,189.1)=0.013 {I+3-5}. 
T$deduced by evaluators from B(E2) and |g branching ratio for 129.2|g, assuming pure M1 for 111.8|g 


level_energy_unit: KEV
level_spin_parity: 5/2+
level_lifetime_unit: NS
level_comment:
$E1 R.M.E. (from 3/2-,g.s.)=+1.32|*10{+-3} {I+54-34}. 
$B(E1)(from 3/2-,g.s.)=0.44|*10{+-6} {I+42-20}. 
$E1 R.M.E. (from 7/2-,58.5)=-3.01|*10{+-3} {I+95-85}. 
$B(E1)(from 7/2-,58.5)=1.1|*10{+-6} {I+8-6}. 
$E3 R.M.E. (from 11/2-,168.7)=-0.87 {I+27-17}. 
$B(E3)(from 11/2-,168.7)=0.06 {I3}. 
T$deduced by evaluators from B(E1) and |g branching ratio for 253.2|g 


level_energy_unit: KEV
level_spin_parity: 17/2+
level_lifetime_unit: PS
level_comment:
$E2 R.M.E. (from 13/2+,189.1)=+6.60 {I+44-61}. 
$B(E2)(from 13/2+,189.1)=3.1 {I+4-5}. 
$M1 R.M.E. (from 15/2+,300.9)=+2.038 {I+168-95}. 
$B(M1)(from 15/2+,300.9)=0.26 {I+4-2}. 
T$deduced by evaluators from B(E2) and |g branching ratio for 127.7|g 


level_energy_unit: KEV
level_spin_parity: 3/2+
level_lifetime_unit: NS
level_comment:
$E1 R.M.E. (from 1/2-,8.8)=+1.30|*10{+-3} {I+56-45}. 
$B(E1)(from 1/2-,8.8)=0.9|*10{+-6} {I+8-5}. 
$E1 R.M.E. (from 3/2-,g.s.)=+1.43|*10{+-3} {I+40-51}. 
$B(E1)(from 3/2-,g.s.)=0.5|*10{+-6} {I3}. 
$E3 R.M.E. (from 3/2-,g.s.)=-0.58 {I+12-14}. 
$B(E3)(from 3/2-,g.s.)=0.08 {I+5-3}. 
T$deduced by evaluators from B(E1) and branching ratio for 308.9|g 


level_energy_unit: KEV
level_spin_parity: 15/2-
level_lifetime_unit: PS
level_comment:
$E2 R.M.E. (from 11/2-,168.7)=+6.35 {I+21-24}. 
$B(E2)(from 11/2-,168.7)=3.36 {I+23-25}. 
$E4 R.M.E. (from 7/2-,58.5)=+2.85 {I+99-84}. 
$B(E4)(from 7/2-,58.5)=1.0 {I+8-5}. 
T$deduced by evaluators from B(E2) and branching ratio for 160.1|g 


level_energy_unit: KEV
level_spin_parity: 13/2-
level_lifetime_unit: PS
level_comment:
$E2 R.M.E. (from 9/2-,193.0)=+5.885 {I+224-46}. 
$B(E2)(from 9/2-,193.0)=3.2 {I+13-7}. 
$E2 R.M.E. (from 11/2-,168.7)=+0.85 {I+18-36}. 
$B(E2)(from 11/2-,168.7)=0.060 {I+28-40}. 
$M1 R.M.E. (from 15/2-,328.9)=-2.96 {I+21-79}. 
$B(M1)(from 15/2-,328.9)=0.55 {I+33-8}. 
T$deduced by evaluators from B(E2) and branching ratio for 158.5|g 


level_energy_unit: KEV
level_spin_parity: 9/2+
level_lifetime_unit: PS
level_comment:
$E1 R.M.E. (from 7/2-,58.5)=+2.18|*10{+-3} {I+17-24}. 
$B(E1)(from 7/2-,58.5)=0.59|*10{+-6} {I+10-12}. 
$E1 R.M.E. (from 11/2-,168.7)=-3.40|*10{+-3} {I+47-36}. 
$B(E1)(from 11/2-,168.7)=0.96|*10{+-6} {I+22-24}. 
$E2 R.M.E. (from 5/2+,311.7)=+4.73 {I+116-31}. 
$B(E2)(from 5/2+,311.7)=3.7 {I+21-4}. 
$E3 R.M.E. (from 3/2-,g.s.)=+0.47 {I+13-11}. 
$B(E3)(from 3/2-,g.s.)=0.06 {I3}. 
$E3 R.M.E. (from 15/2-,328.9)=-1.06 {I+21-40}. 
$B(E3)(from 15/2-,328.9)=0.07 {I+6-2}. 
T$deduced by evaluators from B(E1) and branching ratio for 333.5|g 


level_energy_unit: KEV
level_spin_parity: 7/2+
level_lifetime_unit: NS
level_comment:
$E1 R.M.E. (from 5/2-,77.5)=+2.58|*10{+-3} {I+42-93}. 
$B(E1)(from 5/2-,77.5)=1.1|*10{+-6} {I+4-6}. 
$E2 R.M.E. (from 3/2+,317.8)=+4.02 {I+93-199}. 
$B(E2)(from 3/2+,317.8)=4.0 {I+21-30}. 
$E3 R.M.E. (from 3/2-,g.s.)=+0.39 {I+11-16}. 
$B(E3)(from 3/2-,g.s.)=0.038 {I25}. 
T$deduced by evaluators from B(E1) and branching ratio for 330.9|g 


level_energy_unit: KEV
level_spin_parity: 19/2+
level_lifetime_unit: PS
level_comment:
$E2 R.M.E. (from 15/2+,300.9)=+7.06 {I+41-48}. 
$B(E2)(from 15/2+,300.9)=3.1 {I4}. 
$E3 R.M.E. (from 13/2-,351.7)=+0.96 {I+36-19}. 
$B(E3)(from 13/2-,351.6)=0.07 {I+5-3}. 
$M1 R.M.E. (from 17/2+,316.8)=+0.754 {I+78-149}. 
$B(M1)(from 17/2+,316.9)=0.032 {I+6-12}. 
T$deduced by evaluators from B(E2) and branching ratio for 186.6|g 


level_energy_unit: KEV
level_spin_parity: 21/2+
level_lifetime_unit: PS
level_comment:
$E2 R.M.E. (from 17/2+,316.8)=+7.49 {I+69-47}. 
$B(E2)(from 17/2+,316.9)=3.1 {I+6-4}. 
$M1 R.M.E. (from 19/2+,487.6)=+4.01 {I+15-16}. 
$B(M1)(from 19/2+,487.6)=0.80 {I+7-6}. 
T$deduced by evaluators from B(E2) and branching ratio for 177.96|g 


level_energy_unit: KEV
level_spin_parity: 13/2+
level_lifetime_unit: PS
level_comment:
$E1 R.M.E. (from 11/2-,168.7)=+2.57|*10{+-3} {I+35-28}. 
$B(E1)(from 11/2-,168.7)=0.55|*10{+-6} {I+16-11}. 
$E2 R.M.E. (from 9/2+,391.9)=+5.88 {I+133-67}. 
$B(E2)(from 9/2+,391.9)=3.5 {I+17-7}. 
T$deduced by evaluators from B(E1) and branching ratio for 356.2|g 


level_energy_unit: KEV
level_spin_parity: 19/2-
level_lifetime_unit: PS
level_comment:
$E2 R.M.E. (from 15/2-,328.9)=+7.20 {I+21-19}. 
$B(E2)(from 15/2-,328.9)=3.24 {I+19-17}. 
$E4 R.M.E. (from 11/2-,168.7)=+3.3 {I+13-11}. 
$B(E4)(from 11/2-,168.7)=0.9 {I+9-5}. 
T$deduced by evaluators from B(E2) and branching ratio for 206.88|g 


level_energy_unit: KEV
level_spin_parity: 11/2+
level_lifetime_unit: PS
level_comment:
$E1 R.M.E. (from 9/2-,193.0)=+3.44|*10{+-3} {I+61-107}. 
$B(E1)(from 9/2-,193.0)=1.2|*10{+-6} {I+4-6}. 
$E2 R.M.E. (from 7/2+,408.5)=+5.3 {I+12-14}. 
$B(E2)(from 7/2+,408.5)=3.5 {I+18-16}. 
$E3 R.M.E. (from 5/2-,77.5)=+0.87 {I+18-19}. 
$B(E3)(from 5/2-,77.5)=0.13 {I5}. 
T$deduced by evaluators from B(E1) and branching ratio for 349.7|g 


level_energy_unit: KEV
level_spin_parity: 17/2-
level_lifetime_unit: PS
level_comment:
$E2 R.M.E. (from 13/2-,351.7)=+7.05 {I+15-14}. 
$B(E2)(from 13/2-,351.6)=3.55 {I+15-14}. 
$E2 R.M.E. (from 15/2-,328.9)=+0.84 {I+18-26}. 
$B(E2)(from 15/2-,328.9)=0.044 {I+21-23}. 
$M1 R.M.E. (from 19/2-,535.7)=-3.333 {I+127-74}. 
$B(M1)(from 19/2-,535.8)=0.56 {I+2-5}. 
T$deduced by evaluators from B(E2) and branching ratio for 199.8|g 


level_energy_unit: KEV
level_spin_parity: 17/2+
level_lifetime_unit: PS
level_comment:
$E1 R.M.E. (from 15/2-,328.9)=+3.90|*10{+-3} {I+86-32}. 
$B(E1)(from 15/2-,328.9)=0.95|*10{+-6} {I+31-15}. 
$E2 R.M.E. (from 13/2+,525.1)=+6.8 {I+17-16}. 
$B(E2)(from 13/2+,525.1)=3.3 {I+19-14}. 
T$deduced by evaluators from B(E1) and branching ratio for 376.4|g 


level_energy_unit: KEV
level_spin_parity: 15/2+
level_lifetime_unit: PS
level_comment:
$E1 R.M.E. (from 13/2-,351.7)=+3.21|*10{+-3} {I+36-39}. 
$B(E1)(from 13/2-,351.7)=0.74|*10{+-6} {I17}. 
$E2 R.M.E. (from 11/2+,542.7)=+6.37 {I+190-60}. 
$B(E2)(from 11/2+,542.7)=3.4 {I+23-6}. 
$E3 R.M.E. (from 9/2-,193.0)=+1.06 {I+47-23}. 
$B(E3)(from 9/2-,193.0)=0.11 {I+12-4}. 
T$deduced by evaluators from B(E1) and branching ratio for 365.4|g 


level_energy_unit: KEV
level_spin_parity: 25/2+
level_lifetime_unit: PS
level_comment:
$E2 R.M.E. (from 21/2+,494.8)=+8.26 {I+86-287}. 
$B(E2)(from 21/2+,494.8)=2.6 {I+6-13}. 
T$deduced by evaluators from B(E2) for 226.6|g 


level_energy_unit: KEV
level_spin_parity: 23/2+
level_lifetime_unit: PS
level_comment:
T$deduced by evaluators from B(E2) and branching ratio for 240.9|g 
$E2 R.M.E. (from 19/2+,487.6)=+7.89 {I+69-98}. 
$B(E2)(from 19/2+,487.6)=3.1 {I+6-7}. 
$E3 R.M.E. (from 17/2-,551.5)=+1.06 {I+26-23}. 
$B(E3)(from 17/2-,551.5)=0.06 {I+4-2}. 


level_energy_unit: KEV
level_spin_parity: 23/2-
level_lifetime_unit: PS
level_comment:
T$deduced by evaluators from B(E2) and branching ratio for 249.8|g 
$E2 R.M.E. (from 19/2-,535.7)=+8.12 {I+23-25}. 
$B(E2)(from 19/2-,535.7)=3.30 {I+19-20}. 
$E4 R.M.E. (from 15/2-,328.9)=+3.8 {I+12-15}. 
$B(E4)(from 15/2-,328.9)=0.9 {I+7-6}. 


level_energy_unit: KEV
level_spin_parity: 21/2-
level_lifetime_unit: PS
level_comment:
T$deduced by evaluators from B(E2) and branching ratio for 236.58|g 
$E2 R.M.E. (from 17/2-,551.5)=+7.58 {I+28-29}. 
$B(E2)(from 17/2-,551.5)=3.19 {I24}. 
$In Fig. 9 of 1992De51, branching ratio of 12% (apparently I(|g+ce)) for an M1 transition of 2.5 keV to the 19/2- member of the band at 785.56 keV was calculated using rotational model, Q{-0} and (g{-K}-g{-R}) parameters. 


level_energy_unit: KEV
level_spin_parity: 19/2+
level_comment:
$E1 R.M.E. (from 17/2-,551.5)=+4.61|*10{+-3} {I+47-66}. 
$B(E1)(from 17/2-,551.5)=1.18|*10{+-6} {I+25-31}. 
$E2 R.M.E. (from 15/2+,717.1)=+7.24 {I+173-72}. 
$B(E2)(from 15/2+,717.1)=3.3 {I+17-6}. 
$Sufficient information is lacking for deducing level T{-1/2} as the 394.5|g is a double placement with undivided intensity and I|g(228.9|g) is unknown 


level_energy_unit: KEV
level_spin_parity: 25/2-
level_lifetime_unit: PS
level_comment:
$E2 R.M.E. (from 21/2-,788.1)=+8.38 {I+60-35}. 
$B(E2)(from 21/2-,788.1)=3.2 {I+5-3}. 
T$deduced by evaluators from B(E2) and |g-branching for 269.1|g 


level_energy_unit: KEV
level_spin_parity: 27/2-
level_lifetime_unit: PS
level_comment:
$E2 R.M.E. (from 23/2-,785.6)=+8.73 {I+35-50}. 
$B(E2)(from 23/2-,785.6)=3.18 {I+26-36} 
$M1 R.M.E. (from 25/2-,1057.1)=+3.75 {I+184-31}. 
$B(M1)(from 25/2-,1057.1)=0.54 {I+66-8}. 
T$deduced by evaluators from B(E2) and |g-branching for 288.7|g 


level_energy_unit: KEV
level_spin_parity: 29/2-
level_lifetime_unit: PS
level_comment:
$E2 R.M.E. (from 25/2-,1057.1)=+9.06 {I+51-169}. 
$B(E2)(from 25/2-,1057.1)=3.2 {I+3-11}. 
$M1 R.M.E. (from 27/2-,1074.3)=+0.54 {I+22-11}. 
$B(M1)(from 27/2-,1074.3)=0.010 {I+11-3}. 
T$deduced by evaluators from B(E2) and |g-branching for 298.6|g 


level_energy_unit: KEV
level_spin_parity: 31/2-
level_lifetime_unit: PS
level_comment:
$E2 R.M.E. (from 27/2-,1074.3)=+9.38 {I+38-80}. 
$B(E2)(from 27/2-,1074.3)=3.1 {I+3-5}. 
$M1 R.M.E. (from 29/2-,1355.5)=+4.02 {I+40-125}. 
$B(M1)(from 29/2-,1355.5)=0.54 {I+11-28}. 
T$deduced by evaluators from B(E2) and |g-branching for 323.8|g 


level_energy_unit: KEV
level_spin_parity: 35/2-
level_lifetime_unit: PS
level_comment:
T$deduced by evaluators from B(E1)|_=9|*10{+-6} {I4} and |g-branching for 446.9|g 
$E2 R.M.E. (from 31/2-,1398.1)=+0.10 {I+39-41}. 
$B(E2)(from 31/2-,1398.1)=0.0003 {I+72-3} or 0.0003 {I+27-3}, first for +0.39 uncertainty, second for -0.41 uncertainty in R.M.E. 


level_energy_unit: KEV
level_spin_parity: 5/2+
level_lifetime_unit: NS
level_comment:
T$from 1975Ho14 (|b(84|g ce)(t)). Others: 43.7 ns {I5} (1972Mc29, a time interval distribution method); 41 ns {I4} (1955St88, (25.6|g)|b(t) and (84.2|g)|b(t)). 
$There could be an unobserved 6.5-keV |g from the 5/2+, 84.2 level to the 77.7 level. See discussion in 1973Br12 about intensity estimate for such a transition 
$Calculated wave function amplitudes (1975Ho14): 0.786 |p3/2[651], 0.598 |p5/2[642] 


level_energy_unit: KEV
level_spin_parity: 7/2+
level_lifetime_unit: NS
level_comment:
T$combined half-life for 101.4+102.3 levels, measured by 1975Ho14 from (ce(M) for 81.2|g+82.1|g)(ce for 25.6|g+18.1|g+17.2|g)(t). 
$Calculated wave function amplitudes (1975Ho14): 0.753 |p3/2[651], 0.647 |p5/2[642] 


level_energy_unit: KEV
level_spin_parity: 3/2+
level_lifetime_unit: NS
level_comment:
T$combined half-life for 101.4+102.3 levels, measured by 1975Ho14 from (ce(M) for 81.2|g+82.1|g)(ce for 25.6|g+18.1|g+17.2|g)(t). 
$Calculated wave function amplitude (1975Ho14): 0.996 |p3/2[651] 


level_energy_unit: KEV
level_spin_parity: 5/2+
level_lifetime_unit: NS
level_lifetime_info: ;ERR=LE
level_comment:
T$measured by 1975Ho14 from |b(ce(M) for 81.2|g+82.1|g)(t) 
$Calculated wave function amplitude (1975Ho14): 0.801 |p5/2[642] 


level_energy_unit: KEV
level_spin_parity: 3/2-
level_comment:
J$3/2 based on |g|g(|q), A{-2}=+0.27 {I7} (1975Ho14) 
$Proposed configuration=|p3/2[532] or |p3/2[521] (1975Ho14) 


level_energy_unit: KEV
level_energy_info: ;ERR=?
level_spin_parity: 5/2+
level_comment:
MOME2$Mossbauer effect (1978Fr28), deduced from measured Q(84.2 level)/Q(g.s.)=-0.4 {I1}, and estimated Q(g.s.)=-1.72 {I5} 


level_energy_unit: KEV
level_spin_parity: (2-)
level_lifetime_unit: D
level_comment:
T$Average of 32.3 h 4 (1.35 d 2) and 31.2 h 2 (1.30 d 1) (1950Ja51). 
J$log| {Ift}(to 1016 keV, J|p=2-)=5.9 and log| {Ift}(to 1050 keV, J|p=3-)=6.2 in {+232}U, and possible configuration=|n 5/2[633] + p 1/2[530] suggest J|p=(2-) for {+232}Pa. 
Branching: %|e=0.003 {I1} from 1986LoZT. T{-1/2}(|a)|?1.2|*10{+11} d, theory (1997Mo25). 


level_energy_unit: KEV
level_spin_parity: 3/2-
level_lifetime_unit: D
level_comment:
MOMM1,MOME2$from low-temperature nuclear orientation (quoted in 1989Ra17 compilation from Annual report of the Institute Srahlen und Kernphysik, Universitat Bonn, p152, 1983-84); also adopted in 2019StZV evaluation. Other: +3.4 {I8} (1961Ma42, atomic beam) 
J$spin measured by atomic beam (1961Ma42). Spin and parity from analyzing power A{-y}(|q) in (pol t,|a). 
T$from 2000Us01 evaluation. Measured values: 27.02 d {I3} (2000Us01, from |g-decay curves for eight |g rays, followed for five half-lives); 26.9 d {I1} (1999Po33, |g-decay curve), 26.967 d {I2} (1986Jo08, ionization chamber), 26.95 d {I6} (1957Wr37, ionization chamber and proportional counter), 27.0 d {I1} (1956Mc60, ionization chamber and proportional counter). Others: 27.46 d {I18} (2002Ab03, |g-decay curve), 27 d (1947Le01), 27.4 d {I4} (1941Gr03), 25 d (1941Se09), 27 d (E. Haggstrom: Phys. Rev. 59, 322 (1941), from conversion lines), |?25 d (1938Me04). 


level_energy_unit: KEV
level_spin_parity: 5/2+
level_lifetime_unit: NS
level_comment:
J$86.48, E1 |g to 3/2-; 29.37, E1 |g to 7/2- 
T$from |a|g(t) in |a decay. Weighted average of 35.7 ns {I4} (1972Mc12), 36.4 ns {I5} (1972Mc29), 35.7 ns {I5} (1972Wi11), 35.4 ns {I8} (|a(29.6|g)(t),1972Wi11), 37.4 ns {I4} (|a(65-105 |a)(t),1971Ga16), 36.8 ns {I16} (|a(70-90 |g)(t),1968Ob02), 36.9 ns {I5} (1961Ma10), 36.9 ns {I4} (|a(ce, <100 keV)(t),1954En11). 


level_energy_unit: KEV
level_spin_parity: 7/2+
level_comment:
J$L+1/2 from analyzing power A{-y}(|q) in (pol t,|a) for 107 {I2} doublet gives 7/2+ for one and 9/2+ for the other; 108.7|g, M1+E2 from 5/2+; |g to 7/2-; |g branching from 9/2+, band assignment. 


level_energy_unit: KEV
level_spin_parity: 9/2+
level_comment:
J$analyzing power and cross section in (pol t,|a) for 107 {I2} doublet gives 7/2+ for one and 9/2+ for the other; band assignment 


level_energy_unit: KEV
level_spin_parity: 1/2+
level_comment:
J$gammas to 1/2-, 3/2-, and 3/2+; analyzing power A{-y}(|q) in (pol t,|a) for 171 doublet giving 1/2+ for one and 13/2+ for the other 


level_energy_unit: KEV
level_spin_parity: 13/2+
level_comment:
J$analyzing power A{-y}(|q) in (pol t,|a) for 171 doublet giving 1/2+ for one level and 13/2+ for the other 


level_energy_unit: KEV
level_spin_parity: 5/2+
level_comment:
J$favored |a decay (HF=2.86) from 5/2+ g.s. decay of {+237}Np; 151.4|g, M1+E2 to 5/2+; 143.2|g, M1+E2 to 3/2+; |g rays to 7/2+ and 7/2- 


level_energy_unit: KEV
level_energy_info: ;ERR=?
level_spin_parity: (5/2+,11/2-)
level_comment:
E$298 {I3} in ({+3}He,d),(|a,t) agrees in energy with that from (pol t,|a), but a doublet with L=(4+3) and 7/2+ and 7/2- is proposed in ({+3}He,d),(|a,t) 
J$analyzing power A{-y}(|q) in (pol t,|a) 


level_energy_unit: KEV
level_spin_parity: 7/2+
level_comment:
E$298 {I3} in ({+3}He,d),(|a,t) with L-(4+3) and 7/2+ and 7/2- is proposed 
J$62.6|g to 5/2+ member of the band; pattern of |g transitions to 3/2[651] band; ({+3}He,d),(|a,t) data 


level_energy_unit: KEV
level_spin_parity: (9/2+)
level_comment:
J$|g to 7/2+,3/2[651] state; band assignment. Unfavored |a decay (HF=127) from 5/2+ ground state of {+237}Np supports the assignment 


level_energy_unit: KEV
level_spin_parity: (7/2-)
level_comment:
E$298 {I3} in ({+3}He,d),(|a,t) with L=(4+3) and 7/2+ and 7/2- is proposed 
J$|g to 5/2- member of the band, gammas to 5/2+ and 7/2- levels; ({+3}He,d) and (|a,t) data; energy fit to band. 


level_energy_unit: KEV
level_energy_info: ;ERR=?
level_spin_parity: 3/2+
level_comment:
E$the levels in (pol t,|a) and ({+3}He,d),(|a,t) are at the same energy, but different J|p values are proposed 
J$analyzing power A{-y}(|q) in (pol t,|a) 


level_energy_unit: KEV
level_spin_parity: 9/2+
level_comment:
J$|g branchings to 5/2+, 9/2+ and (11/2-) levels; band assignment. Unfavored |a decay (HF=59) from 5/2+ ground state of {+237}Np supports the assignment 


level_energy_unit: KEV
level_spin_parity: 3/2-
level_comment:
J$190.55|g, M1+E2 to 5/2-; 440.9|g, M1(+E2) to 1/2-. Configuration=|p3/2[532] suggested by 1970Se06. 


level_energy_unit: KEV
level_spin_parity: 3/2+
level_comment:
J$359.7|g, M1(+E2) to 3/2+; 285.5|g, M1(+E2) to 1/2+; |g rays to 5/2+ and 5/2-; analyzing power A{-y}(|q) in (pol t,|a) 


level_energy_unit: KEV
level_energy_info: ;ERR=?
level_spin_parity: 7/2+
level_comment:
E$586 in (t,|a) and 589 {I4} in ({+3}He,d),(|a,t) agree in energy, but different J|p values are proposed 
J$analyzing power A{-y}(|q) in (pol t,|a) 


level_energy_unit: KEV
level_spin_parity: 3/2-
level_comment:
J$412.5, M1+E2 |g to 5/2-; L=(1) in ({+3}He,d),(|a,t) and proposed bandhead of 3/2[521] configuration 


level_energy_unit: KEV
level_energy_info: ;ERR=?
level_spin_parity: (3/2-)
level_comment:
E$703 in (t,|a) and 704 {I3} in ({+3}He,d),(|a,t) agree in energy, but different J|p values are proposed 
J$analyzing power A{-y} in (pol t,|a) 


level_energy_unit: KEV
level_spin_parity: (7/2-)
level_comment:
J$analyzing power A{-y}(|q) in (pol t,|a); also L=(3) in ({+3}He,d), (|a,t) and proposed 7/2- member of 3/2[521] configuration 


level_energy_unit: KEV
level_spin_parity: (11/2-)
level_comment:
E$871 {I2} in ({+3}He,d),(|a,t) and 872 in (pol t,|a) agree in energy, but different J|p values are proposed in the two studies 
J$L=(5) in ({+3}He,d),(|a,t) and proposed 11/2- member of 3/2[521] configuration 


level_energy_unit: KEV
level_energy_info: ;ERR=?
level_spin_parity: (9/2+)
level_comment:
J$analyzing power A{-y}(|q) in (pol t,|a); 9/2+, 1/2[660] configuration proposed by 1979Fl02; but 1977Th04 also proposed tentative 11/2-, 9/2[514], both in (t,|a) 


level_energy_unit: KEV
level_spin_parity: (3/2)
level_comment:
J$|b feeding from 1/2+ parent, log| {Ift}=7.2. J|p=3/2+ from 960.8|g to 7/2+, but 3/2- from 1007|g to 7/2-, suggesting that one of these placements is questionable. The weak 994.3|g to 5/2- is consistent with both the assignments. 


level_energy_unit: KEV
level_spin_parity: 5/2+
level_lifetime_unit: NS
level_comment:
T$from |a(86.5|g)(t), unless otherwise stated. Weighted average of 35.7 ns {I4} (1972Mc12), 36.4 ns {I5} (1972Mc29), 35.7 ns {I5} (1972Wi11), 35.4 ns {I8} (|a(29.6|g)(t),1972Wi11), 37.4 ns {I4} (|a(65-105 |a)(t),1971Ga16), 36.8 ns {I16} (|a(70-90 |g)(t),1968Ob02), 36.9 ns {I5} (1961Ma10), 36.9 ns {I4} (|a(ce, <100 keV)(t),1954En11). 


level_energy_unit: KEV
level_energy_info: ;ERR=?
level_spin_parity: 9/2+&7/2+
level_comment:
E$104 {I6} (1977Th04) 
J$L+1/2 from analyzing power A{-y}(|q) (1979Fl02) 
$Unresolved doublet 
S$for 9/2+ 
$d|s/d|W=54 |mb/sr 
$d|s/d|W=58 |mb/sr (1977Th04) 


level_energy_unit: KEV
level_energy_info: ;ERR=?
level_spin_parity: 1/2+&13/2+
level_comment:
E$unresolved doublet, 169.2 and 173 in Adopted Levels. 
J$1/2+ from analyzing power A{-y}(|q) (1979Fl02) 
S$for the dominant 1/2+ component (1979Fl02). 
$d|s/d|W=296 |mb/sr for 171 unresolved doublet (169+173) 
$d|s/d|W=321 |mb/sr for unresolved doublet (169+173) (1977Th04) 


level_energy_unit: KEV
level_energy_info: ;ERR=?
level_spin_parity: 3/2+
level_comment:
E$poorly resolved peak; 201.6 in Adopted Levels 
J$L-1/2 from analyzing power A{-y}(|q) (1979Fl02) 
$d|s/d|W=45 |mb/sr 
$d|s/d|W=54 |mb/sr (1977Th04) 


level_energy_unit: KEV
level_energy_info: ;ERR=?
level_spin_parity: (5/2+)
level_comment:
E$474 {I10} (1977Th04) 
J$5/2 and 3/2[402] from 1977Th04 
$d|s/d|W=27 |mb/sr 
$d|s/d|W=27 |mb/sr (1977Th04) 


level_energy_unit: KEV
level_energy_info: ;ERR=?
level_spin_parity: 9/2+,(11/2-)
level_comment:
E$ 980 {I8} (1977Th04) 
$11/2-,9/2[514] assignment was suggested by 1977Th04. 
$d|s/d|W=85 |mb/sr 
$d|s/d|W=74 |mb/sr (1977Th04) 


level_energy_unit: KEV
level_energy_info: ;ERR=?
level_spin_parity: 5/2+
level_comment:
E$1065 {I8} (1977Th04) 
$5/2-, 1/2[541] assignment was suggested by 1977Th04. 
$d|s/d|W=41 |mb/sr 
$d|s/d|W=38 |mb/sr (1977Th04) 


level_energy_unit: KEV
level_spin_parity: (3/2)
level_comment:
J$1/2,3/2 from log| {Ift} value of 7.2 from 1/2+ parent; 3/2+ from 960.8|g to 7/2+, but 3/2- from 1007|g to 7/2-, suggesting that one of these placements is questionable. The weak 994.3|g to 5/2- is consistent with both the assignments. 


level_energy_unit: KEV
level_spin_parity: 4+
level_lifetime_unit: H
level_comment:
J log| {Ift} values for the |b{+-} decays to the 5+, 5-, 3+, 3-, 6- levels are consistent only with J|p=4+. Analogy with {+231}Pa, {+233}Pa, {+235}U suggests J|p=4+ with |p 1/2[530], |n 7/2[743] configuration as the main component for the g.s. of {+234}Pa. |b{+-} decay to 5+, |p 5/2[622], |n 5/2[633] state in {+234}U suggests that there might be some admixture of |p 3/2[651], |n 5/2[622] state in {+234}Pa g.s. 
T the measured half-lives are 6.7 h (1931Cu01), 6.658 h {I12} (1954Zi02), 6.75 h {I3} (1962Bj01). The unweighted average of 6.70 h {I5} has been adopted (the weighted average is 6.67 h {I3}). 


level_energy_unit: KEV
level_energy_info: ;OFF=X;ERR=?
level_spin_parity: (0-)
level_lifetime_unit: MIN
level_lifetime_info: ;ISO=M1
level_comment:
See 1.159-min {+234}Pa IT decay for references and methods of obtaining the branching ratios. 
T Value recommended in 2004WoZZ: weighted average (Limitation of Relative Statistical Weight procedure) of T{-1/2}=1.175 min {I3} (1951Ba83), 1.25 min {I10} (1956On07), 1.14 min {I1} (1963Bj02), 1.183 min {I37} (1969SaZR). Other value: 1.175 min (1969DeZX). 
J |b feeding from {+234}Th to J=0 and J=1 levels in {+234}U suggest J<2. J|p=0-, |p 1/2[530], |n 1/2[631] configuration proposed in 1963Bj02. 


level_energy_unit: KEV
level_energy_info: ;OFF=X;ERR=?
level_spin_parity: (2-)
level_lifetime_unit: NS
level_lifetime_info: ;ERR=LT
level_comment:
J 29.49|g to (0-) is E2. This level is possibly the J|p=2- member of a rotational band built on the J|p=0- state at 73.92+x. 
T by |g|g(t) in {+234}Th |b{+-} decay. 


level_energy_unit: KEV
level_energy_info: ;OFF=X;ERR=?
level_spin_parity: (1-)
level_lifetime_unit: NS
level_lifetime_info: ;ERR=LE
level_comment:
J 92.38|g to (0-) is M1. K=1, |p 1/2[530], |n 1/2[631] configuration proposed in 1965De10 from |g-ray-transition rates to the K=0, |p 1/2[530], |n 1/2[631] band. 
T |b|g(t) in {+234}Th |b{+-} decay. 


level_energy_unit: KEV
level_spin_parity: (0-)
level_lifetime_unit: MIN
level_lifetime_info: ;ISO=M
level_comment:
$Decay modes from {+234}Pa Adopted Levels in the ENSDF database 
E$based on a tentative placement of a 106|g, 2016Ri06 deduce that the (0-) isomer lies 2.6 keV above the 73.9-keV, (3+) level. Other: 73.92+x in ENSDF database (June 2006 update) 


level_energy_unit: KEV
level_spin_parity: (3/2-)
level_lifetime_unit: MIN
level_comment:
T$Uncertainty of average is not lower than the lowest input value. E. Browne, Dec. 4, 2013. 
T$weighted average of 24.2 min {I3} (1968Tr07), 24.6 min {I2} (1986Mi10), 23.7 min {I5} (1950Me08), 24.2 min {I3} (1968Tr07), and 24.7 min {I6} (1989Yu01) 
J similarity with {+231}Pa and {+233}Pa suggests 3/2- member of 1/2[530] rotational band. Also J|p=(1/2-) is possible. 


level_energy_unit: KEV
level_spin_parity: (1/2-)
level_uncertain: S
level_comment:
E from analogy with {+231}Pa (9.20 keV) and {+233}Pa (6.65 keV). 
J similarity with {+231}Pa and {+233}Pa suggests 1/2- member of 1/2[530] rotational band. Also J|p=(3/2-) is possible. 


level_energy_unit: KEV
level_spin_parity: 1(+)
level_lifetime_unit: MIN
level_comment:
T$weighted average of 9.1 min {I3} (1968Tr07), 9.1 min {I1} (1984Mi02) and 9 min {I1} (1973Ka10). Others: 12.5 min {I10} (1963Wo04). 
J$|b{+-} to 1- in {+236}U with log| {Ift}<7; |b{+-} to 0+ and 2+ with log| {Ift} approximately 7.7; there are two possible configurations |p3/2{++}[651]|n5/2{++}[622] coupled to J|p=1+ (1984Mi02) and |p1/2{+-}[530]|n1/2{++}[631] coupled to J|p=1- (1973Or06). However, for both configurations the Gallagher-Moszkowski rule suggests J=1 to be higher in energy. 


level_energy_unit: KEV
level_spin_parity: (1/2+)
level_lifetime_unit: MIN
level_comment:
T From 1974Ka05 (also reported in 1969TrZZ). Others: 10.5 min {I20} (1954Cr46), 10 min (1961Pa22). 
J from (t,|a) data of 1977Th04. The log| {Ift} values for |b{+-} feeding to {+237}U are consistent with the assignments. 


level_energy_unit: KEV
level_spin_parity: (3-)
level_lifetime_unit: MIN
level_comment:
T weighted average of 2.3 min {I1} (1968Tr07), 1.8 min {I6} (1967BeZZ), and 2.1 min {I4} (1999Yu08,1999Xi05) 
J configuration=((|p 1/2[530])(|n 5/2[622])) analogy with {+231}Pa and {+233}Pa and with {+241}Pu and {+239}U. 
J configuration ([1/2[530]+]) ([5/2[622]+]) as for the 91th proton in the ground states of {+231}Pa and {+233}Pa, and 147th neutron in the ground states of {+241}Pu and {+239}U. 


level_energy_unit: KEV
level_spin_parity: (3/2)
level_lifetime_unit: H
level_comment:
T$From 1995Yu01, 1996Yu06. 
J$Assigned by evaluator, based on its |b{+-} decay to the 715- (3/2+), 784- (5/2-), and 815-keV (1/2-) levels in {+239}U. 


level_energy_unit: KEV
level_lifetime_unit: MS
level_comment:
$Only the |a decay mode is reported by 2015Ya13 
E$Observed activity is assumed to be associated with the {+215}U ground state 
T$measured by 2015Ya13, using E|a=8428.0 keV {I3} and the method described by 1984Sc13 for analyzing low-statistics data. The half-life, 0.73 ms {I+133-29} reported by 2015Ya13 is rounded here 
$The identification of the products was performed using the method of energy-position-time correlated |a-decay chains. A group of two correlated chains assigned to {+215}U was observed at the lab-frame energy of 205.5 MeV. Based on the two decay chains, the |a-particle energy and half-life of the daughter nucleus were determined to be 7780.0 keV {I3} and 20.8 ms {I+379-82}, which are consistent with the |a decays from {+211}Th and {+212}Th. The observed granddaughter decays are consistent with the |a decays from {+207}Ra and {+208}Ra. 
$The authors state that due to the similarities in the |a decays of {+215}U and {+216}U, it is not possible for them to make an unambiguous identification of the two observed decay chains based on decay properties alone. However, they prefer to assign the two decay chains to {+215}U on the basis of two other important facts. Firstly, they can be sure that these two isotopes have a mass number less than 216 because they are formed at higher excitation energy in the {+40}Ar+{+180}W system than that required to produce the {+216}U. Secondly, the two decay chains are unlikely to be {+216}U produced in 6n evaporation channel from {+182}W component in the target due to the cross sections reported for each of the products in the {+182}W+{+40}Ar reaction. Cross section calculations were performed using the HIVAP reaction code. 
$Measured production cross section for {+215}U at the beam energy of 205.5 MeV was determined to be 50 pb {+70-30}, using a transmission efficiency of 14% (2015Ya13). 


level_energy_unit: KEV
level_spin_parity: 0+
level_lifetime_unit: MS
level_comment:
$From theoretical |a-decay half-lives of 7.9 ms and |b-decay half-life of 4.05 s (1997Mo25), primarily |a decay mode is expected, whereas |b decay is expected to be negligible (<0.2%) 
T$from correlation times of |a-decays and reaction products (2015Ma37,2015De22). Value is weighted average of 4.72 ms {I+472-157} (2015Ma37) and 3.8 ms {I+88-32} (2015De22) 
$In four correlated chains (2015Ma37), measured E|a=8384 {I30} and T{-1/2}=4.72 ms {I+472-157} were followed by E|a=7788 {I30} and T{-1/2}=21.5 ms {I+215-72}, the latter consistent with the |a decay of {+212}Th ground state (E|a=7809 {I5}, T{-1/2}=31.7 ms {I13} in 2010He25). Two of these chains were also followed by E|a=7165 {I25} and T{-1/2}=1.13 s {I+206-47}, consistent with the |a decay of {+208}Ra (E|a=7133 {I5}, T{-1/2}=1.3 s {I2} in {+208}Ra |a decay dataset in ENSDF database). 
$In one correlated chain (2015De22), measured E|a=8340 {I50} and T{-1/2}=3.8 ms {I+88-32} was followed by E|a=7830 {I20} and T{-1/2}=173 ms {I+308-143}, consistent with the |a decay of {+212}Th ground state (E|a=7809 {I5}, T{-1/2}=31.7 ms {I13} in 2010He25); and E|a=6610 {I50}, T{-1/2}=51 s {I+117-42}, consistent with the |a decay of {+208}Fr (E|a=6641 {I3}, T{-1/2}=59.1 s {I3} in {+208}Fr |a decay dataset in ENSDF database). Note that {+208}Fr is produced in |e decay {+208}Ra, |a daughter of {+212}Th decay 
$Reduced |a-width=34 keV {I+35-11} (2015Ma37, using Rasmussen formalism) suggests unhindered |a transition consistent with ground state to ground state (0+ to 0+) transition 
$A chain with three correlated |a particles was observed: E|a=8182, T{-1/2}=2.5 ms {I+117-11}, followed by E|a=7740, T{-1/2}=73 ms {I+349-33} and E|a=7113, T{-1/2}=2.4 s {I+116-11}, consistent with the |a-decay data for {+212}Th daughter and {+208}Ra grand-daughter. Several scenarios are proposed for this |a group: |a transition from the ground state to the first 2+ state in {+212}Th, in which case the first 2+ state in {+212}Th will be at 206 keV, or from the (8+) isomer of {+216}U to a corresponding (8+) state in {+212}Th, which will be at 2446 keV. Another possibility for this event is that it is related to the decay to the ground state of {+212}Th if the first decay was emitted in the backward direction, thus leaving a large fraction of energy in the PSSD detector 


level_energy_unit: KEV
level_spin_parity: (8+)
level_lifetime_unit: MS
level_lifetime_info: ;ISO=M
level_comment:
T$from correlation times of |a-decays and evaporation residues (2015Ma37). 
$Only the |a decay is detected, but the isomeric decay is expected as in the decay of the (8+) isomers in {+214}Th and {+216}Th 
E$from measured E|a values and assuming that both the observed |a groups from the {+216}U ground state and from this level feed the ground state of {+212}Th, first group by {Il}=0 and the second by {Il}=8 
T$listed as 0.74 |ms {I+134-29} in 2015Ma37 
$In two correlated chains, measured E|a=10582 {I30} and T{-1/2}=0.74 ms {I+134-29} were followed by daughter E|a=7806 {I30} and T{-1/2}=27.8 ms {I+506-110}, and grand-daughter E|a=7108 {I25} an T{-1/2}=413 ms {I+752-163}; the daughter activity is consistent with the |a decay of {+212}Th ground state (E|a=7809 {I5}, T{-1/2}=31.7 ms {I13} in 2010He25) and the grand-daughter activity with the decay of {+208}Ra {+208}Ra (E|a=7133 {I5}, T{-1/2}=1.3 s {I2} in {+208}Ra |a decay dataset in ENSDF database). 
$Reduced |a-width=0.31 (2015Ma37, using Rasmussen formalism with assumed |D{Il}=8) suggests strongly hindered |a transition 
J$based on known |a transitions in the decays of {+214}Th, {+216}Th and {+218}U populating an 8+ state of configuration=|p(h{-9/2}~#f{-7/2}). The deduced energy of 2240 keV is in general agreement with energies of the 8+ isomers at 2181, 2040 {I2105} keV in {+216}Th, {+214}Th and {+218}U, respectively 


level_energy_unit: KEV
level_spin_parity: 0+
level_lifetime_unit: MS
level_comment:
T$deduced in 2021Zh22 by combining all 21 correlated decay chains from the present work and three previous above mentioned studies (2015Ma37, 2015De22 and 2015-RIKEN; it appears that three events have been considered from 2015-RIKEN work). T{-1/2}=1.28 {+49-28} ms (2021Zh22) from analysis of 13 correlated decay chains observed in the present work. Previously measured T{-1/2} values: 4.72 ms {I+472-157} (2015Ma37); 3.8 ms {I+88-32} (2015De22); 2.6 ms {I+36-10} (2015-RIKEN). 
$Energy of the emitted |a: E|a=8374 {I17} (2021Zh22, from 13 decay chains). This value can be compared with 8384 {I30} (2015Ma37), 8340 {I50} (2015De22) and 8390 {I33} (2015-RIKEN) 
$Reduced |a-width=78 keV {I+22-14} (2021Zh22, using Rasmussen formalism) suggests unhindered |a transition, consistent with ground state to ground state (0+ to 0+) |a transition 


level_energy_unit: KEV
level_lifetime_unit: MS
level_comment:
$Only the |a decay mode has been observed. Theoretical calculations give T{-1/2}(|a)=0.407 s, T{-1/2}(|b)=6.62 s (1997Mo25), suggesting %|e+|b{++}|?6% 
E$the observed 16-ms activity is assumed to correspond to the ground state of {+217}U 
J$1/2- proposed from systematics (2017Au03), (1/2-) also listed in 2005Le42 
T$15.6 ms {I+213-57} from decay curve for 8005|a (2000Ma65). Other: 0.19 ms {I+113-10} (2005Le42) for decay curve for 8024|a with only one questionable event assigned to {+217}U. Evaluator prefers to adopt T{-1/2} measurement in 2000Ma65 as it is based on an unambiguous peak from |a|a-coincidence events showing four generations of |a-decays 
$Measured E|a=8005 keV {I20} (2000Ma65), 8024 keV {I14} (2005Le42) from the decay of {+217}U to {+213}Th 


level_energy_unit: KEV
level_spin_parity: 0+
level_lifetime_unit: MS
level_comment:
%A$only the |a decay with E(|a)=8612 {I14} (2021Zh22), 8612 {I9} (2007Le14,2005Le42), 8600 {I30} (2015Ma37), 8625 {I25} (1992An04) has been observed. Theoretical partial T{-1/2} for |e+|b{++} decay=15.4 s (2019Mo01) gives %|e+%|b{++}=0.003 
T$from 76 (implants)|a-correlated decay chains (2021Zh22), highest statistics as compared to just a few events (|<10) in previous studies. Others: 0.131 ms {I+179-48} (2018Ya01, same group and laboratory as 2021Zh22 and 2015Ma37); 1.15 ms {I+158-42} (2015Ma37, two (implants)|a-correlated decay chains); 0.51 ms {I+17-10} (2007Le14, also 2005Le42); 1.5 ms {I+73-7} (1992An04). 
$Reduced |a-width=53 keV {I+7-6} (2021Zh22, in Rasmussen formalism) suggests unhindered |a transition, consistent with g.s., 0+ to g.s., 0+ |a transition 


level_energy_unit: KEV
level_spin_parity: (8+)
level_lifetime_unit: MS
level_lifetime_info: ;ISO=M
level_comment:
$Only the |a decay has been observed with E|a=10678 {I17} (2007Le14,2005Le42), 10701 {I30} (2015Ma37) and 10685 {I38} (2018Ya01) 
E$from difference in Q(|a) values (from E|a values in 2007Le14) from the isomer and g.s. decay, assuming the isomer decays directly to the {+214}Th g.s. through an L=8 transition 
T$from 2007Le14 (also 2005Le42). Others: 0.134 ms {I+244-53} (2018Ya01, from two (implants)|a-correlated decay chains); 0.28 ms {I+130-12} (2015Ma37, from one (implants)|a-correlated event). Weighted average of the three values is 0.45 ms {I13}. Evaluator prefers the half-life from 2007Le14 due to better statistics in this work as compared to those in 2018Ya01 and 2015Ma37 
J$from 2007Le14 (also 2005Le42) based on comparison with {+216}Th, (8+) isomer and expected similar structures of {+216}Th and {+218}U. Proposed configuration=|ph{-9/2}~#|pf{-7/2} 


level_energy_unit: KEV
level_spin_parity: 0+
level_lifetime_unit: MS
level_comment:
T$measured by 2021Zh22 from 76 correlated decay chains. Previously measured T{-1/2} values: 1.15 ms {I+158-42} (2015Ma37); 0.51 ms {I+17-10} (2007Le14, 2005Le42)); 1.5 ms {I+73-7} (1992An04). T{-1/2} from 2018Ya01 is 0.131 ms {I+179-48}. 
$Energy of the emitted |a: E|a=8612 {I14} (2021Zh22, from 76 decay chains). This value can be compared with 8600 {I30} (2015Ma37), 8612 {I9} (2007Le14, 2005Le42) and 8625 {I25} (1992An04). Measured E|a=8619 {I35} in 2018Ya01. 
$Reduced |a-width=53 keV {I+7-6} (2021Zh22, using Rasmussen formalism) suggests unhindered |a transition, consistent with ground state to ground state (0+ to 0+) |a transition 


level_energy_unit: KEV
level_lifetime_unit: US
level_comment:
E$detected activity is assumed to correspond to the g.s. of {+219}U 
$%|e+%|b{++}=3.5|*10{+-5}, (2019Mo01,theory). 
T$weighted average of 60 |ms {I7} (2019Zh54, ten Er-|a correlated decay chains for strong |a branch to the g.s. of {+215}Fr, T{-1/2} from |a branches to the excited states are: 50 |ms {I+50-17} and 105 |ms {I+73-30}); 0.08 ms {I+10-3} (2007Le14, also 2005Le42, implants-|a correlated events); and 42 |ms {I+34-13} (1994Ye08,1993An07,1994AnZY, Er-|a correlated events) 
J$9/2+ proposed from systematics (2021Ko07) 


level_energy_unit: KEV
level_spin_parity: (9/2+)
level_lifetime_unit: US
level_comment:
$Only the |a decay observed by 2015Kh09. Decay mode %|a|?100 is based on theoretical half-lives of 1.3 |ms for |a decay and >100 s for |b{+-} decay (1997Mo25) 
E$it is assumed that the 0.66-|ms activity corresponds to the ground state of {+221}U 
J$assignment proposed by 2015Kh09 based on systematics, and favored |a transitions involving |n2g{-9/2} orbital for N=129 nuclei 
T$from fitting of the Er-|a decay correlated curve for the 9710|a peak from {+221}U decay to a single exponential (2015Kh09) 
$Measured E|a=9.71 MeV {I5} from the decay of {+221}U to {+217}Th (2015Kh09) 


level_energy_unit: KEV
level_spin_parity: (9/2+)
level_lifetime_unit: US
level_comment:
$%|a assumed by compiler based on theoretical half-lives of >100 s for |b{+-} decay and 1.3 |ms for |a decay (1997Mo25: At. Data and Nucl. Data Tables 66, 131) 
E$it is assumed that the 0.66-|ms activity corresponds to the ground state of {+221}U 
J$assignment proposed by 2015Kh09 based on systematics, and favored |a transitions involving |n2g{-9/2} orbital for N=129 nuclei 
T$from fitting of the Er-|a decay correlated curve for the 9710|a peak from {+221}U decay to a single exponential (2015Kh09) 
$Measured E|a=9.71 MeV {I5} from the decay of {+221}U to {+217}Th (2015Kh09) 


level_energy_unit: KEV
level_spin_parity: 0+
level_lifetime_unit: US
level_comment:
$Only the |a decay has been observed. Decay mode of %|a|?100 is based on theoretical half-lives of 17.4 |ms for |a decay and 17.5 s for |b decay (2019Mo01) 
T$weighted average of 4.7 |ms {I7} (2015Kh09, fitting of the (Er)-|a correlated decay curve for the 9310|a peak from {+222}U decay to a single exponential); and 4.0 |ms {I+19-10} (2023Lu04, Er-|a correlated decay curve). Other: 1.0 |ms {I+12-4} (1983Hi12, from correlated 12.08 MeV and 7.16 MeV |a peaks, the latter from {+214}Ra decay; the 12.08 MeV composite peak was interpreted as the superposition of |a peaks from decays of {+222}U and {+218}Th; the assignment of this |a peak to {+222}U was not that definite) 
$Measured E|a=9.31 MeV {I5} from the decay of {+222}U to {+218}Th (2015Kh09), 9246 keV {I8} (2023Lu04). Evaluator's note: the difference in the two values seems significant, however, it seems that the uncertainty of 8 keV in 2023Lu04 is underestimated, as this value was deduced from simply a spread of E|a values (without uncertainties) for only five events (#3, #4, #5, #6 and #9) in authors' Table I. 


level_energy_unit: KEV
level_lifetime_unit: US
level_comment:
T$from 9246|a(t) (2023Lu04) 
$Measured E|a=9246 keV {I8} (2023Lu04) extracted from general least-square superpulse fitting algorithm. 


level_energy_unit: KEV
level_spin_parity: 0+
level_lifetime_unit: US
level_comment:
T$from 2014Lo10 (evaporation residue - 8479|a correlated decay curve; also 561 |ms {I132} from (evaporation residue-8095|a correlated events). Other measurements: 0.7 ms {I+5-2} (1991An10, also 1991An13, 1994Ye08); 1.0 ms {I4} (1992To02). 
$|e,|b{++} decay mode has not been observed. Theoretical calculations predict %|e+%|b{++}<0.00012 (gross |b-decay theory,1973Ta30), <0.015% (QRPA, 2019Mo01) 
$Measured E|a=8470 {I15} (1991An10), 8458 {I20} (1992To02) 


level_energy_unit: KEV
level_lifetime_unit: MS
level_comment:
Only |a decay was observed. From gross |b decay theory of 1973Ta30, %|e<0.005. 
T$From method of best representation based on 95 ms {I15} (1992To02), 135 ms {I+93-39} (2003Ni10), 84 ms {I4} (2001Ku07), 59 ms {I+5-2} (2000He17), 60 ms {I10} (1997AnZY). Weighted mean of these values, also from lwm: 71 ms {I7}. Others (mostly superseded): 1994An02, 1994AnZY, 1994Ye08, 1993AnZS, 1993ToZW, 1992ToZV, 1991An10, 1990YeZY, 1989An13, 1989HeZK, 1989HeZZ, 1989He13, 1988AnZS 


level_energy_unit: KEV
level_spin_parity: 0+
level_lifetime_unit: MS
level_comment:
$Only |a decay of {+226}U has been observed. Evaluators estimate %|e<0.05 (from gross theory, 1973Ta30), <0.0093 (from calculated half-lives of >100 s for |b decay and 9.3 ms for |a decay in 1997Mo25) 
T$from |a decay curves; weighted average of measured values: 258 ms {I13} (2002CaZZ, from the same group as 2000He17 but seems an independent experiment), 281 ms {I9} (2000He17), 260 ms 10 (1999Gr28, 1998Gr19), 200 ms {I50} (1990An22). Others: 0.25 s {I+15-10} (1989An13, from the same group as 1990An22), 0.5 s {I2} (1973Vi10) are in agreement with the Adopted value but much less precise. 
$2013Fr03: compilation of half-lives 


level_energy_unit: KEV
level_spin_parity: (2+)
level_comment:
E$level energy is lower than 80.5 keV from ({+22}Ne,4n|g) study (1998Gr19), but marginally agrees within the large uncertainty from |a decay 


level_energy_unit: KEV
level_spin_parity: (3/2+)
level_lifetime_unit: MIN
level_comment:
$%|e+%|b{++}<6, theory (1997Mo25). 
T$from 1969Ha32. Other: 1.3 min {I3} (1952Me13). 
J$favored |a decay (HF=0.64) to 247, (3/2)+ level in {+223}Th. 
$See 2015Ka24 for a detailed |a and |g study of |a decay of {+227}U to {+223}Th 


level_energy_unit: KEV
level_spin_parity: 0+
level_lifetime_unit: MIN
level_comment:
T from 1961Ru06; other: 9.3 min {I5} (1951Me10) 
%EC Upper limit obtained by 1961Ru06 from absolute counting of {+228}Pa daughter from a source of {+228}U. From gross |b{+-} decay systematics of 1973Ta30 one gets %|e<0.7. However, note that Q(|e) is very small (343 keV {I16}) and the calculation is less reliable at small Q values. 


level_energy_unit: KEV
level_spin_parity: (3/2+)
level_lifetime_unit: MIN
level_comment:
|eK/|a|?5; value deduced by 1951Me10 from the ratio of the |a activity of {+231}Pa (added tracer) to that of {+229}Pa (chemically separated from uranium parent). The ratio |eK/|a of {+229}Pa was assumed to be 100. 
T measured by 1951Me10. 
J favored |a transition to {+225}Th g.s. 


level_energy_unit: KEV
level_comment:
Q(|a)({+233}Pu)=6420 {I50} suggests that the observed 6300-keV |a from {+233}Pu feeds either the g.s. or a low-lying level in {+229}U with E|<30 keV. 


level_energy_unit: KEV
level_spin_parity: 0+
level_lifetime_unit: D
level_comment:
$%{+22}Ne=4.8|*-12 {I20} from 2001Bo11, measured using glass track detectors. Other: 1.3|*10{+-12} {I8} (2000Pa54) measured using polyester detectors. Both used source from {+230}Pa decay. 2001Bo11 claim much lower |a background. 
T$from 2012Po12. Other: 20.8 d (1948St42). 


level_energy_unit: KEV
level_spin_parity: (5/2-)
level_lifetime_unit: D
level_comment:
$%|a: from 1994Li12. Other value: %|a=0.0055 (1950Cr28, unpublished data) using ion-chamber method. 
J$from systematics (1972El21) with possible configuration=|n5/2[633], |n3/2[631] or |n5/2[752] for the g.s. Inertial parameter fits 5/2. Log| {Ift} values to 183, 320 levels in {+231}Pa differ substantially from corresponding log| {Ift} values in {+231}Th |b{+-} decay and {+235}Pu |e decay, thus favoring |n5/2[752] (1994Br36,1973We08). Other: 5/2+ from systematics (2021Ko07) 
T$from 1949Os01. Other: 4.3 d (1950Cr28) 


level_energy_unit: KEV
level_energy_info: ;OFF=X
level_spin_parity: (5/2+)
level_uncertain: ?
level_comment:
E$x=40 {I40} from systematics, could be close to the g.s. (analogy to {+229}Th) 
J$populated by favored |a transition from {+235}Pu |a decay 


level_energy_unit: KEV
level_spin_parity: (7/2-)
level_comment:
E$|?42 keV from analogy with the neighboring even-odd nuclei {+233}U, {+229}Th and {+231}Th 
J$7/2 member of configuration=|n5/2[752] (1973We08) 


level_energy_unit: KEV
level_spin_parity: 0+
level_lifetime_unit: Y
level_comment:
T$Average of 69.00 y {I40} (specific activity) and 68.81 y {I38} (activity ratio relative to T{-1/2}=1.592|*10{+5} y for {+233}U, mass spectrometry (1979Ag04, 1986Ag01). Others: 73.6 y {I10} (2|p a counting, specific activity) (1954Se26); 71.4 y {I6} (calorimetry) and 72.1 y {I5} (2|p a counting, specific activity)(1964Ch05). Others: 1949Go01, 1949Ja01). Analysis of alpha spectra: 2003Ba64, 1999Sa15, 1999Go26, 1999De51, 1996Ca30, 1994To17, 1993Ba72, 1991Kr18, 1990Ca43. 
%SF$From T{-1/2}(SF)=2.6|*10{+15} y {I5} (solid-state track detection corrected for cluster decay (2000Bo46). Other values: T{-1/2}(SF)>6.84|*10{+15} y (1990Bo16); T{-1/2}(SF)=0.080|*10{+15} y {I55} (1957Hy90), this value may have been affected by detection of {+24}Ne (1990Bo16); T{-1/2}(SF)>0.008|*10{+15} y (1952Se67). 
%24NE$From 1991Bo20. Other values:%{+24}Ne=8.5|*10{+-10} {I7}, from T{-1/2}({+24}Ne)=8.1|*10{+12} y {I7} (1990Bo16); %{+24}Ne=2.0|*10{+-10} {I5}, from T{-1/2}({+24}Ne)=3.4|*10{+13} y {I8} (1985Ba18). 


level_energy_unit: KEV
level_spin_parity: 2-
level_lifetime_unit: PS
level_lifetime_info: ;ERR=LT
level_comment:
J$1016.4|g M2 to 0+. 
J$In |b{+-} decay from {+232}Pa, the low log| {Ift} (5.88 {I5}) suggests a significant 2p component, probably configuration=((|p 1/2[530])(|p 5/2[642])). In {+231}Th |b{+-} decay the analogous configuration=(|n 5/2[633]) to configuration=(|p 5/2[642]) has the log| {Ift} value of 5.92 {I5} 


level_energy_unit: KEV
level_spin_parity: (2+)
level_comment:
J$1085.4|g E1,E2 to 2+, and 1132.7|g E1,E2 to 0+ suggests J|p=1+, 1-, or 2+. Level feeding from {+232}Np |e decay suggests J|p=2+. 
J |g deexcitation suggests J|p=1+,1- or 2+. Observation of the level in (4+) {+232}Np |e decay favors J=2 


level_energy_unit: KEV
level_spin_parity: (3+,4+)
level_comment:
J$log| {Ift}=5.2 in {+232}Np |e decay suggests an allowed |e transition, thus J|p=3+,4+,5+. 327.3|g to 2+ suggests J|p|<4. 
J low log| {Ift} in {+232}Np |e decay suggests no parity change. |g deexcitation suggests 2+ or 3+; however, if the 1193.9|g is misplaced J|p=4+ is also possible. If {+232}Np is indeed 4+, then 2+ is excluded by the log| {Ift}=5.17 
2-neutron level from low log| {Ift} in {+232}Np |e decay; possible configuration=((|n 5/2[633])(|n 3/2[631])) resulting in J|p=4+ (suggesting that the 1193.9|g is misplaced). It compares with log|{Ift}'s|?5.3 for analogous transitions in the decays of {+233}Np and {+235}Pu (|p 5/2[642]) to (|n 5/2[633]). No other log| {Ift}'s in the actinide region are that low. 


level_energy_unit: KEV
level_spin_parity: 5/2+
level_lifetime_unit: Y
level_comment:
$Evaluated rms charge radius: <r{+2}>{+1/2}=5.8203 fm {I49} (2013An02) 
$Evaluated change in radius |d<r{+2}>({+233}U,{+238}U)=-0.435 fm {I1} (2013An02) 
J$spin measured by optical and EPR methods (1954Va01,1955Ko36, 1956Ka53,1956Zi05,1957Do40); 5/2[633] orbital assignment is consistent with the experimental |m (see 1972El21). 
T$weighted average from 1.5925|*10{+5} y {I40} (1976Va02), 1.5911|*10{+5} y {I15} (1974Ja08), 1.5937|*10{+5} y {I22} (1979Ge11), 1.5885|*10{+5} y {I75} (1980Ag04). Other measurements: 1.560|*10{+5} y {I3} (1968Oe02, corrected by 1974Ja08 for {+232}U daughter activities), 1.553|*10{+5} y {I10} (1968Ke15), 1.621|*10{+5} y {I3} (1967Ih01), 1.615|*10{+5} y {I9} (1961Po10), 1.626|*10{+5} y {I8} (1959Do63), 1.62|*10{+5} y {I1} (1949Hy02). 
$T(SF)>2.7|*10{+17} Y (1981Vo02), T(SF)=1.2|*10{+17} Y {I3} (1966Al23). 
$T(|a)/T({+24}Ne) |< 9.5|*10{+-13} (1986Ba65); 
$T(|a)/T(cluster)=7.5|*10{+-13} {I25} (1986Tr10); 
$T(|a)/T({+24}Ne) |< 7|*10{+-12} (1985Al28). 
$T(|a)/T({+24}Ne)=7.2|*10{+-13} {I7} (1991Pr02), %{+28}Mg/%{+24}Ne<0.0018; track-recording glass detector 
$Measured |d<r{+2}>{+1/2}=-0.416 fm {I26} (with respect to {+238}U) (1992An17,1998El02), -0.432 fm {I43} (1997Be64), 0.088 fm {I10} (with respect to {+234}U) (1990GaZI) 
$|d<r{+2}>=2.598 fm{+2} {I11} (with respect to {+236}U) (1990Ga28); |d<r{+2}>=0.383 fm{+2} {I44} (1990Ga28) 
$Measured isotope shift |d|n({+233}U,{+238}U)=-7730 MHz {I7} for 5758 A optical line, -13174 MHz {I3} for 5915 A optical line (1990Ga28) 
MOMM1$from |m/|m({+235}U)=-1.5604 {I14} (ABLS method, 1990Ga28) and |m({+235}U)=-0.38 {I3} (1983Ni08, 2019StZV). Note that |m is negative in 2019StZV evaluation. Others: 0.59 {I5} (EPR method, 1983Lu10), 0.74 (1969Be29), 1968Ma42, 1960Ro27, 1958Da21, 0.54 (1957Do40), positive (1954Va01,1956Va27), 1956Ka53, 1955Ko36 
MOME2$From muonic x rays (1984Zu02); sign from EPR method used in earlier studies. Others: Q/Q({+235}U)=0.746 {I2} (ABLS method,1990Ga28) gives Q=3.682 {I10} using Q({+235}U)=4.936 {I6} from 1984Zu02, 7.9 (1969Be29), 1968Ma42, 1960Ro27, 1958Da21, 3.5 {I7} (1957D040), positive (1956Va27), 1956Ka53, +13 {I5} (1956Zi05), large (1954Va01) 


level_energy_unit: KEV
level_spin_parity: 7/2+
level_lifetime_unit: NS
level_comment:
J$40.35|g to 5/2+ is M1+E2; level is Coulomb excited. 
T$deduced from B(E2) in muonic x rays. Other: |?0.12 ns from B(E2)=5 {I3} in Coulomb excitation. 
BE2,MOME2$from muonic x rays (1984Zu02). In 2016St14, level half-life is quoted as 50 ps, and the sign of Q is listed as positive. 


level_energy_unit: KEV
level_spin_parity: 9/2+
level_comment:
J$level is Coulomb excited; |g rays to 5/2+ and 7/2+ levels. The (d,d'), (d,t), ({+3}He,|a), and (|a,3n|g) reactions support the assignment. 
$B(E2)(from g.s.)=1.76 {I3} (Muonic atom) 
$B(E2)(from 40.3,7/2+)=3.97 {I4} (Muonic atom) 


level_energy_unit: KEV
level_spin_parity: 11/2+
level_comment:
J$level is Coulomb excited; |g transition to the 7/2+ state. (d,d'), (d,t), ({+3}He,|a), and (|a,3n|g) data support the assignment. 


level_energy_unit: KEV
level_spin_parity: 7/2-
level_comment:
J$L(p,t)=0 from 7/2- target; |g rays to 5/2+ and 9/2+. The |a hindrance factor of |?5.8 from 7/2- parent supports the assignment. 


level_energy_unit: KEV
level_spin_parity: 5/2+
level_lifetime_unit: PS
level_comment:
J$M1+E2 |g rays to 5/2+ and 7/2+; log| {Ift}=7.0 from 3/2- {+233}Pa parent. 
T$|b|g(t) in {+233}Pa |b{+-} decay. 


level_energy_unit: KEV
level_spin_parity: 7/2+
level_comment:
E,J$from |s(|q) and A{-y}(|q), this state is consistent with 7/2+ and not 11/2+, thus it is not the 11/2+ member of 3/2[631] band 


level_energy_unit: KEV
level_spin_parity: (5/2+)
level_comment:
J$|g transitions to the 7/2+, 7/2-, 3/2+ states suggest 5/2,7/2+. Between the possible 5/2[622] and 7/2[624] Nilsson orbitals, 5/2[622] is preferred because of rather strong 234.3|g to the 3/2+, 3/2[631] state. 


level_energy_unit: KEV
level_spin_parity: (7/2+)
level_comment:
J$|g rays to 5/2+, 7/2+, 9/2+ levels suggest 5/2+, 7/2+-. Ratios of reduced transition rates of |g rays to g.s. band are in fair agreement with theory for K=5/2, J=7/2. 


level_energy_unit: KEV
level_spin_parity: (5/2-)
level_comment:
J$from (pol d,t); 3/2-, 5/2- states of 1/2[501] band were suggested by 1978Jo05 for the 610- and 620-keV levels from their (d,t) data. 7/2+ is less likely, but not completely ruled out 


level_energy_unit: KEV
level_spin_parity: (1/2+)
level_comment:
J$(9/2-) is less likely, but not completely ruled out. If (9/2-), then it could be a member of 1/2[501] band 


level_energy_unit: KEV
level_spin_parity: 3/2-
level_comment:
$3/2-, 3/2[501] state was tentatively assigned by 1978Jo05 from strong (d,t) population. Angular distribution was consistent with L=0 or L=1 momentum transfer. 


level_energy_unit: KEV
level_spin_parity: 5/2+
level_comment:
$Q{-0}=10.294 {I59}; Intrinsic hexadecapole moment H{-0}=2.55 {I30} 
$|b{-2}=0.243 {I4}, |b{-4}=0.091 {I15}, <r{+2}>{+1/2}=5.816 fm {I7} 


level_energy_unit: KEV
level_spin_parity: 5/2+
level_comment:
$d|s/d|W=44.3 mb/sr (90|'), 9.3 mb/sr (125|') (1976Th01) 
$d|s/d|W=166.0 mb/sr (90|'), 41.0 mb/sr (125|'); R=4.1 (1978St11) 


level_energy_unit: KEV
level_spin_parity: 7/2+
level_comment:
E$41 {I6} (1978St11) 
$d|s/d|W=3755 |mb/sr (90|'), 1378 |mb/sr (125|') (1976Th01) 
$d|s/d|W=4010 |mb/sr (90|'), 2250 |mb/sr (125|'); R=1.8 (1978St11) 


level_energy_unit: KEV
level_spin_parity: 9/2+
level_comment:
E$93 {I6} (1978St11) 
$d|s/d|W=1740 |mb/sr (90|'), 588 |mb/sr (125|') (1976Th01) 
$d|s/d|W=1873 |mb/sr (90|'), 1167 |mb/sr (125|'); R=1.6 (1978St11) 


level_energy_unit: KEV
level_spin_parity: 11/2+
level_comment:
E$157 {I6} (1978St11) 
$d|s/d|W=374 |mb/sr (90|'), 142 |mb/sr (125|') (1976Th01) 
$d|s/d|W=190 |mb/sr (90|'), 183 |mb/sr (125|'); R=1.0 (1978St11) 


level_energy_unit: KEV
level_spin_parity: 13/2+
level_comment:
E$234 {I6} (1978St11) 
$d|s/d|W=152 |mb/sr (90|'), 70 |mb/sr (125|') (1976Th01) 
$d|s/d|W=54 |mb/sr (90|'), 58 |mb/sr (125|'); R=0.9 (1978St11) 


level_energy_unit: KEV
level_spin_parity: (5/2-)
level_comment:
E$297 {I6} (1978St11) 
$d|s/d|W=25 |mb/sr (90|'), 14 |mb/sr (125|') (1976Th01) 
$d|s/d|W=7 |mb/sr (90|'), <|?4 |mb/sr (125|'); R|?1.7 (1978St11) 


level_energy_unit: KEV
level_spin_parity: 15/2+&7/2-
level_comment:
E$321 {I6} (1978St11) 
$d|s/d|W=61 |mb/sr (90|'), 27 |mb/sr (125|') (1976Th01) 
$Assumed doublet; assigned to 15/2+, 5/2[633] and 7/2-, 5/2[752] states. 
$d|s/d|W=8 |mb/sr (90|'), 7 |mb/sr (125|'); R=1.1 (1978St11) 


level_energy_unit: KEV
level_spin_parity: 9/2-
level_comment:
E$358 {I6} (1978St11) 
$d|s/d|W=27 |mb/sr (90|'), 11 |mb/sr (125|') (1976Th01) 
$d|s/d|W=8 |mb/sr (90|'), 5 |mb/sr (125|'); R=1.6 (1978St11) 


level_energy_unit: KEV
level_spin_parity: (11/2-)
level_comment:
E$398 {I6} (1978St11) 
$d|s/d|W=11 |mb/sr (90|'), 12 |mb/sr (125|') (1976Th01) 
$Some of the observed strength may be due to 1/2+, 1/2[631] state seen through an admixture of |g-vibrational state coupled with 5/2[633] state (1976Th01). 
$d|s/d|W=5 |mb/sr (90|'), 5 |mb/sr (125|'); R=1.0 (1978St11) 


level_energy_unit: KEV
level_spin_parity: (17/2+)
level_comment:
E$419 {I6} (1978St11) 
$d|s/d|W=28 |mb/sr (90|'), 8 |mb/sr (125|') (1976Th01) 
$Some of the observed strength may be due to 3/2+, 1/2[631] state seen through an admixture of |g-vibrational state coupled with 5/2[633] state (1976Th01). 
$d|s/d|W=4 |mb/sr (90|'), 4 |mb/sr (125|'); R=1.0 (1978St11) 


level_energy_unit: KEV
level_spin_parity: 7/2-
level_comment:
E$502 {I6} (1978St11) 
$d|s/d|W=11 |mb/sr (90|'), 6 |mb/sr (125|') (1976Th01) 
$d|s/d|W=7 |mb/sr (90|'), 4 |mb/sr (125|'); R=1.7 (1978St11) 


level_energy_unit: KEV
level_comment:
E$524 {I6} (1978St11) 
$d|s/d|W=8 |mb/sr (90|'), 5 |mb/sr (125|') (1976Th01) 
$May be the 19/2+ member of 5/2[633] band from fit to the band. 
$d|s/d|W=4 |mb/sr (90|'), 4 |mb/sr (125|'); R=1.0 (1978St11) 


level_energy_unit: KEV
level_spin_parity: (9/2-)
level_comment:
E$568 {I6} (1978St11), probably corresponds to 560 and 575 levels in 1976Th01 
$d|s/d|W=15 |mb/sr (90|'), 5 |mb/sr (125|') (1976Th01) 
$(1/2+)+(3/2+) states of K=1/2 |g vibration was tentatively suggested by 1978St11. 
$d|s/d|W=9 |mb/sr (90|'), 5 |mb/sr (125|'); R=1.8 (1978St11) 


level_energy_unit: KEV
level_spin_parity: 5/2-
level_comment:
E$748 {I6} (1978St11) 
$d|s/d|W=36 |mb/sr (90|'), 15 |mb/sr (125|') (1976Th01) 
$d|s/d|W=7 |mb/sr (90|'), 7 |mb/sr (125|'); R=1.0 (1978St11) 


level_energy_unit: KEV
level_spin_parity: 7/2-
level_comment:
E$787 {I6} (1978St11) 
$d|s/d|W=80 |mb/sr (90|'), 34 |mb/sr (125|') (1976Th01) 
$d|s/d|W=25 |mb/sr (90|'), 28 |mb/sr (125|'); R=0.9 (1978St11) 


level_energy_unit: KEV
level_spin_parity: 9/2-
level_comment:
E$839 {I6} (1978St11) 
$d|s/d|W=85 |mb/sr (90|'), 30 |mb/sr (125|') (1976Th01) 
$d|s/d|W=26 |mb/sr (90|'), 26 |mb/sr (125|'); R=1.0 (1978St11) 


level_energy_unit: KEV
level_spin_parity: 11/2-
level_comment:
E$907 {I6} (1978St11); probably corresponds to 898 and 914 levels in 1976Th01 
$d|s/d|W=34 |mb/sr (90|'), 12 |mb/sr (125|') (1976Th01) 
$d|s/d|W=6 |mb/sr (90|'), 5 |mb/sr (125|'); R=1.2 (1978St11) 


level_energy_unit: KEV
level_spin_parity: 9/2-
level_comment:
E$949 {I6} (1978St11): probably corresponds to 940 and 952 levels in 1976Th01 
$d|s/d|W=46 |mb/sr (90|'), 23 |mb/sr (125|') (1976Th01) 
$d|s/d|W=18 |mb/sr (90|'), 21 |mb/sr (125|'); R=0.9 (1978St11) 


level_energy_unit: KEV
level_spin_parity: 11/2-
level_comment:
E$1000 {I6} (1978St11) 
$d|s/d|W=71|mb/sr (90|'), 34 |mb/sr (125|') (1976Th01) 
$d|s/d|W=22 |mb/sr (90|'), 23 |mb/sr (125|'); R=0.9 (1978St11) 


level_energy_unit: KEV
level_spin_parity: 9/2+
level_comment:
E$1078 {I6} (1978St11) 
$d|s/d|W=43 |mb/sr (90|'), 15 |mb/sr (125|') (1976Th01) 
$d|s/d|W=11 |mb/sr (90|'), 5 |mb/sr (125|'); R=2.1 (1978St11) 


level_energy_unit: KEV
level_spin_parity: 7/2+
level_lifetime_unit: NS
level_lifetime_info: ;ERR=AP
level_comment:
$B(E2)=12 {I2} was obtained by 1958Ne03, |a(40|g)=870 {I+150-100} corresponding to %M1/%E2=4.2 was assumed. |a(40.4|g)=350 {I190} has been adopted by the evaluators from {+233}Pa |b{+-} decay. Correction for the adopted |a yields B(E2)=4.8 {I29}. 
T$deduced from B(E2)=5 {I3}. 


level_energy_unit: KEV
level_spin_parity: 9/2+
level_comment:
$B(E2)=2.38 {I14} was given by 1958Ne03 assuming |d(51.5|g)=2.0 {I+30-5}, |a(51.5|g)=279, |a(92|g)=14.5. There are no ce data available for 51.5|g. B(E2)|<2.8 {I4} was deduced by 1968St22 from {+233}U(d,d') data. 


level_energy_unit: KEV
level_spin_parity: 7/2-
level_comment:
$7/2 member of 5/2[752] band, as shown in Fig. 1 of 1974Fr01. Note that in text on page 761, 1974Fr01 suggest that 318 level is probably the 7/2 member of the K=5/2 band, 5/2[743], Coriolis mixed with the 7/2[743] state. but in authors' Fig. 1, the band is labeled as 5/2[752] 
$d|s/d|W=49 |mb/sr {I6} (15|',60|') 


level_energy_unit: KEV
level_spin_parity: 5/2+
level_comment:
$d|s/d|W=2.4 {I4} 
J$from 1978Jo05 
$d|s/d|W=6 |mb/sr {I1} (60|'), 4 |mb/sr {I1} (90|'), 4 |mb/sr {I1} (105|'), 3 |mb/sr {I1} (120|') 


level_energy_unit: KEV
level_spin_parity: 7/2+
level_comment:
$d|s/d|W=17.5 {I6} 
$E=40 {I1}, J|p=7/2+ (1978Jo05) 
$d|s/d|W=40 |mb/sr {I10} (50|'), 29 |mb/sr {I2} (60|'), 41 |mb/sr {I2} (90|'), 33 |mb/sr {I2} (105|'), 24 |mb/sr {I2} (120|') 


level_energy_unit: KEV
level_spin_parity: 9/2+
level_comment:
$d|s/d|W=11.9 {I5} 
$E=94 {I2}, J|p=9/2+ (1978Jo05) 
$d|s/d|W=24 |mb/sr {I6} (50|'), 15 |mb/sr {I2} (60|'), 22 |mb/sr {I2} (90|'), 19 |mb/sr {I1} (105|'), 16 |mb/sr {I1} (120|') 


level_energy_unit: KEV
level_spin_parity: 11/2+
level_comment:
$d|s/d|W=5.7 {I3} 
$E=156 {I2}, J|p=11/2+ (1978Jo05) 
$d|s/d|W=15 |mb/sr {I4} (50|'), 14 |mb/sr {I2} (60|'), 29 |mb/sr {I2} (90|'), 35 |mb/sr {I2} (105|'), 29 |mb/sr {I2} (120|') 


level_energy_unit: KEV
level_spin_parity: (13/2+)
level_comment:
$E=228 {I3}, J|p=13/2+ (1978Jo05) 
$d|s/d|W=2 |mb/sr {I1} (60|'), 4 |mb/sr {I1} (90|'), 8 |mb/sr {I1} (105|'), 6 |mb/sr {I1} (120|') 


level_energy_unit: KEV
level_spin_parity: 3/2+
level_comment:
$d|s/d|W=9.8 {I5} 
$E=312 {I2}, J|p=(3/2+) (1978Jo05) 
$d|s/d|W=20 |mb/sr {I3} (50|'), 24 |mb/sr {I2} (60|'), 26 |mb/sr {I2} (90|'), 17 |mb/sr {I2} (105|'), 12 |mb/sr {I1} (120|') 


level_energy_unit: KEV
level_spin_parity: 5/2+
level_comment:
$d|s/d|W=104 {I1} 
$E=341 {I1}, J|p=(5/2+) (1978Jo05) 
$d|s/d|W=236 |mb/sr {I11} (50|'), 330 |mb/sr {I13} (60|'), 326 |mb/sr {I14} (90|'), 234 |mb/sr {I6} (105|'), 161 |mb/sr {I5} (120|') 


level_energy_unit: KEV
level_spin_parity: 7/2+
level_comment:
$d|s/d|W=5.9 {I4} 
$E=379 {I2}, J|p=7/2+ (1978Jo05) 
$d|s/d|W=6 |mb/sr {I2} (60|'), 5 |mb/sr {I1} (90|'), 5 |mb/sr {I2} (105|'), 4 |mb/sr {I2} (120|') 


level_energy_unit: KEV
level_spin_parity: 1/2+&11/2-
level_comment:
$d|s/d|W=39.8 {I9} 
E$unresolved doublet 
$E=398 {I2}, J|p=(1/2+ and 11/2-) (1978Jo05) 
$d|s/d|W=56 |mb/sr {I4} (50|'), 82 |mb/sr {I6} (60|'), 99 |mb/sr {I26} (90|'), 68 |mb/sr {I5} (105|'), 56 |mb/sr {I23} (120|') 


level_energy_unit: KEV
level_spin_parity: 3/2+
level_comment:
$d|s/d|W=32.1 {I8} 
$E=415 {I2}, J|p=3/2+ (1978Jo05) 
$d|s/d|W=121 |mb/sr {I7} (50|'), 111 |mb/sr {I42} (60|'), 78 |mb/sr {I4} (90|'), 52 |mb/sr {I22} (105|') 


level_energy_unit: KEV
level_spin_parity: 9/2+
level_comment:
$d|s/d|W=154 {I2} 
$E=432 {I1}, J|p=9/2+ (1978Jo05) 
$d|s/d|W=112 |mb/sr {I6} (50|'), 186 |mb/sr {I9} (60|'), 279 |mb/sr {I19} (90|'), 231 |mb/sr {I5} (105|'), 175 |mb/sr {I8} (120|') 


level_energy_unit: KEV
level_spin_parity: 5/2+
level_comment:
$d|s/d|W=7.5 {I8} 
$E=456 {I2}, J|p=(5/2+) (1978Jo05) 
$d|s/d|W=11 |mb/sr {I2} (50|'), 17 |mb/sr {I3} (60|'), 14 |mb/sr {I1} (90|'), 11 |mb/sr {I2} (105|'), 6 |mb/sr {I1} (120|') 


level_energy_unit: KEV
level_spin_parity: 7/2+
level_comment:
$d|s/d|W=14.1 {I5} 
E,J$from |s(|q) and A{-y}(|q), this state is consistent with 7/2+ and not 11/2+, thus it is not the 11/2+ member of 3/2[631] band 
$E=497 {I2}, J|p=(11/2+) (1978Jo05) 
$d|s/d|W=10 |mb/sr {I2} (50|'), 11 |mb/sr {I2} (60|'), 14 |mb/sr {I1} (90|'), 17 |mb/sr {I2} (105|'), 16 |mb/sr {I6} (120|') 


level_energy_unit: KEV
level_spin_parity: 15/2-
level_comment:
$d|s/d|W=3.4 {I3} 
$E=522 {I2}, J|p=15/2- (1978Jo05) 
$d|s/d|W=9 |mb/sr {I2} (50|'), 14 |mb/sr {I2} (60|'), 45 |mb/sr {I9} (90|'), 50 |mb/sr {I3} (105|'), 45 |mb/sr {I3} (120|') 


level_energy_unit: KEV
level_spin_parity: 1/2-
level_comment:
$d|s/d|W=442 {I3} 
$E=572 {I1}, J|p=1/2- (1978Jo05) 
$d|s/d|W=696 |mb/sr {I31} (50|'), 1300 |mb/sr {I130} (60|'), 1256 |mb/sr {I62} (90|'), 982 |mb/sr {I50} (105|'), 808 |mb/sr {I32} (120|') 


level_energy_unit: KEV
level_spin_parity: 5/2-
level_comment:
$d|s/d|W=80 {I2} 
J$(7/2+) is less likely, but not ruled out 
$E=610 {I3}, J|p=(3/2-,5/2-) (1978Jo05) 
$d|s/d|W=38 |mb/sr {I13} (50|'), 58 |mb/sr {I19} (60|'), 144 |mb/sr {I10} (90|'), 140 |mb/sr {I9} (105|'), 131 |mb/sr {I9} (120|') 


level_energy_unit: KEV
level_spin_parity: 3/2-
level_comment:
$d|s/d|W=73 {I2} 
$E=620 {I3}, J|p=(3/2-,5/2-) (1978Jo05) 
$d|s/d|W=103 |mb/sr {I18} (50|'), 176 |mb/sr {I27} (60|'), 214 |mb/sr {I12} (90|'), 188 |mb/sr {I9} (105|'), 149 |mb/sr {I10} (120|') 


level_energy_unit: KEV
level_spin_parity: 9/2+,7/2-
level_comment:
$d|s/d|W=7.9 {I4} 
$E=660 {I2} (1978Jo05) 
$d|s/d|W=26 |mb/sr {I6} (60|'), 21 |mb/sr {I3} (90|'), 19 |mb/sr {I2} (105|'), 16 |mb/sr {I2} (120|') 


level_energy_unit: KEV
level_spin_parity: 1/2+
level_comment:
$d|s/d|W=1.1 {I2} 
J$(9/2-) is less likely, but not ruled out. If 9/2-, then it could be a member of 1/2[501] band 
$E=700 {I3} (1978Jo05), uncertain level 
$d|s/d|W=3 |mb/s {I1} (90|'), 3 |mb/sr {I1} (105|'), 6 |mb/sr {I1} (120|') 


level_energy_unit: KEV
level_spin_parity: 7/2-
level_comment:
$d|s/d|W=5.7 {I3} 
J$(5/2+) is less likely, but not ruled out 
$E=717 {I3} (1978Jo05) 
$d|s/d|W=12 |mb/sr {I1} (90|'), 12 |mb/sr {I1} (105|'), 12 |mb/sr {I9} (120|') 


level_energy_unit: KEV
level_spin_parity: 5/2-
level_comment:
$d|s/d|W=97 {I1} 
$E=749 {I2} (1978Jo05) 
$d|s/d|W=56 |mb/sr {I5} (50|'), 117 |mb/sr {I15} (60|'), 180 |mb/sr {I9} (90|'), 176 |mb/sr {I6} (105|'), 147 |mb/sr {I5} (120|') 


level_energy_unit: KEV
level_comment:
$d|s/d|W=4.8 {I3} 
$E=802 {I3} (1978Jo05) 
$d|s/d|W=10 |mb/sr {I2} (90|'), 10 |mb/sr {I1} (105|'), 9 |mb/sr {I2} (120|') 


level_energy_unit: KEV
level_spin_parity: 3/2-
level_comment:
$d|s/d|W=49.1 {I10} 
$E=865 {I2} (1978Jo05) 
$d|s/d|W=60 |mb/sr {I5} (50|'), 102 |mb/sr {I10} (60|'), 119 |mb/sr {I17} (90|'), 103 |mb/sr {I8} (105|'), 73 |mb/sr {I14} (120|') 


level_energy_unit: KEV
level_spin_parity: 5/2-
level_comment:
$d|s/d|W=29.3 {I8} 
$E=894 {I2} (1978Jo05) 
$d|s/d|W=18 |mb/sr {I3} (50|'), 45 |mb/sr {I7} (60|'), 61 |mb/sr {I30} (90|'), 61 |mb/sr {I6} (105|'), 48 |mb/sr {I24} (120|') 


level_energy_unit: KEV
level_spin_parity: 5/2-
level_comment:
$d|s/d|W=149 {I2} 
$E=916 {I1}, J|p=(5/2-) (1978Jo05) 
$d|s/d|W=71 |mb/sr {I6} (50|'), 156 |mb/sr {I13} (60|'), 279 |mb/sr {I25} (90|'), 316 |mb/sr {I13} (105|'), 278 |mb/sr {I22} (120|') 


level_energy_unit: KEV
level_spin_parity: 5/2+
level_comment:
$d|s/d|W=17.8 {I7} 
$E=938 {I2} (1978Jo05) 
$d|s/d|W=31 |mb/sr {I4} (50|'), 52 |mb/sr {I8} (60|'), 136 |mb/sr {I6} (90|'), 40 |mb/sr {I4} (105|'), 23 |mb/sr {I8} (120|') 


level_energy_unit: KEV
level_spin_parity: 1/2+
level_comment:
$d|s/d|W=40.0 {I9} 
$E=964 {I3} (1978Jo05) 
$d|s/d|W=61 |mb/sr {I15} (50|'), 94 |mb/sr {I9} (60|'), 76 |mb/sr {I6} (90|'), 58 |mb/sr {I6} (105|'), 40 |mb/sr {I7} (120|') 


level_energy_unit: KEV
level_spin_parity: 5/2+
level_comment:
$d|s/d|W=51 {I1} 
$E=1003 {I3} (1978Jo05) 
$d|s/d|W=72 |mb/sr {I7} (50|'), 98 |mb/sr {I15} (60|'), 120 |mb/sr {I60} (90|'), 84 |mb/sr {I9} (105|'), 66 |mb/sr {I32} (120|') 


level_energy_unit: KEV
level_spin_parity: 3/2-
level_comment:
$d|s/d|W=266 {I2} 
$E=1016 {I1}, J|p=(3/2-) (1978Jo05) 
$d|s/d|W=246 |mb/sr {I13} (50|'), 439 |mb/sr {I6} (60|'), 523 |mb/sr {I34} (90|'), 568 |mb/sr {I29} (105|'), 454 |mb/sr {I24} (120|') 


level_energy_unit: KEV
level_spin_parity: 5/2-
level_comment:
$d|s/d|W=35.8 {I8} 
$E=1053 {I2} (1978Jo05) 
$d|s/d|W=13 |mb/sr {I2} (50|'), 40 |mb/sr {I8} (60|'), 54 |mb/sr {I5} (90|'), 55 |mb/sr {I4} (105|'), 48 |mb/sr {I6} (120|') 


level_energy_unit: KEV
level_spin_parity: 7/2-,5/2+
level_comment:
$d|s/d|W=16.3 {I6} 
$E=1103 {I3} (1978Jo05) 
$d|s/d|W=6 |mb/sr {I2} (60|'), 26 |mb/sr {I5} (90|'), 27 |mb/sr {I3} (105|'), 26 |mb/sr {I5} (120|') 


level_energy_unit: KEV
level_spin_parity: 3/2-,5/2+
level_comment:
$d|s/d|W=1.8 {I3} 
$E=1125 {I3} (1978Jo05) 
$d|s/d|W=6 |mb/sr {I2} (60|'), 8 |mb/sr {I1} (90|'), 7 |mb/sr {I2} (105|'), 6 |mb/sr {I2} (120|') 


level_energy_unit: KEV
level_spin_parity: 1/2+
level_comment:
$d|s/d|W=14.2 {I5} 
$E=1193 {I3} (1978Jo05) 
$d|s/d|W=18 |mb/sr {I6} (50|'), 27 |mb/sr {I4} (60|'), 26 |mb/sr {I11} (90|'), 18 |mb/sr {I3} (105|'), 15 |mb/sr {I8} (120|') 


level_energy_unit: KEV
level_spin_parity: 3/2-
level_comment:
$d|s/d|W=51 {I1} 
$E=1216 {I3} (1978Jo05) 
$d|s/d|W=47 |mb/sr {I9} (50|'), 79 |mb/sr {I6} (60|'), 87 |mb/sr {I7} (90|'), 75 |mb/sr {I6} (105|'), 60 |mb/sr {I13} (120|') 


level_energy_unit: KEV
level_spin_parity: 5/2+
level_comment:
$d|s/d|W=27.4 {I9} 
$E=1236 {I3} (1978Jo05) 
$d|s/d|W=35 |mb/sr {I7} (50|'), 45 |mb/sr {I5} (60|'), 56 |mb/sr {I6} (90|'), 46 |mb/sr {I5} (105|'), 40 |mb/sr {I14} (120|') 


level_energy_unit: KEV
level_comment:
$d|s/d|W=49.3 {I10} 
$E=1263 {I3} (1978Jo05) 
$d|s/d|W=41 |mb/sr {I6} (50|'), 68 |mb/sr {I6} (60|'), 113 |mb/sr {I13} (90|'), 106 |mb/sr {I8} (105|'), 86 |mb/sr {I12} (120|') 


level_energy_unit: KEV
level_spin_parity: 0+
level_lifetime_unit: Y
level_comment:
Intrinsic electric-quadruple moment: Q(0)=10.61 {I6} and intrinsic electric-hexadecapole moment: H(0)=2.49 {I14} were deduced by 1984Zu02 from muonic x rays. Other measurements: Q(0)=13.7 {I20} (1978Ge10, from optical isomeric shift); Q(0)=10.47 {I5}, H(0)=3.3 {I5} (1973Be44, from Coulomb excitation). 
T recommended in 1989Ho24. Measured half-lives: 2.475|*10{+5} y {I16} (1952Fl20), 2.520|*10{+5} y {I8} (1952Ki19), 2.47|*10{+5} y {I3} (1965Wh05), 2.439|*10{+5} y {I24} (1970MeZN), 2.450|*10{+5} y {I8} (1971DeYN, 1981VaZR), 2.459|*10{+5} y {I7} (1980Ge 13), 2.458|*10{+5} y {I12} (1971LoZL, corrected for T{-1/2}({+235}U,{+236}U, {+238}U) in 1981HoZI). 
Early T{-1/2} measurements: 1939Ni03, 1949Ba41, 1949Go18. 
SF half-life recommended in 2000Ho27: 1.5|*10{+16} y {I2}, fr om T{-1/2}(SF)=1.42|*10{+16} y {I8} (1981Vo02), and 1.90|*10{+16} y {I15} (1987Sh27). Other values: 1.6|*10{+16} y {I7} (1952Gh27), |>0.6|*10{+16} y (1952Se6 7). Systematic T{-1/2}(SF): 2005Xu01. Others: 1997Ro12, 1998Du05. 
Measurements for partial half-life of Ne decay: 
$T{-1/2}(Ne)=3.7|*10{+17} y {I+12-9} (1987Sh27), 
$ =6.3|*10{+17} y {I+21-13} (1989Tr11), 
$ =2.7|*10{+18} y {I20} from T{-1/2}(|a)/T{-1/2}(Ne)=9.1|*10{+- 14} {I66} (1991Bo20) and 
T{-1/2}(total)=2.455|*10{+5} y {I5}. 
$T{-1/2}(|a)/T{-1/2}(Ne)=4.4|*10{+-13} {I5} (1989Mo07), 
=9.1|*10{+-14} {I66} (revised in 1991Bo20 from data in 1989Mo07) 
Measurements for partial half-life of Mg decay: 
$T{-1/2}(Mg)=1.1|*10{+18} y {I+13-6} (1987Sh27), 
$ =1.1|*10{+18} y {I+4-3} (1989Tr11), 
$T{-1/2}(|a)/T{-1/2}(Mg)=1.4|*10{+-13} {I3} (1989Mo07), 
$T{-1/2}(Mg)/T{-1/2}(Ne)=0.66 {I5} (1991Bo20). 
%SF is from T{-1/2}(SF)=1.5|*10{+16} y {I2} and T{-1/2}=2.455|*10{+5} y {I6}. 
%Ne and %Mg are from 1991Bo20. 


level_energy_unit: KEV
level_spin_parity: 2+
level_lifetime_unit: NS
level_comment:
Q({+234}U):Q({+236}U):Q({+238}U)=1:1.13 {I9}:1.13 {I10}, by |g resonance (1974Me18). 
Q({+234}U):Q({+236}U):Q({+238}U)=1:0.99 {I5}:1.11 {I7}; change in nuclear radius between the g.s. and the 2+ state |D<r{+2}>/(r{+2})=4.7|*10{+-6} {I13}, deduced by nuclear |g-ray resonance following {+238}Pu |a decay; |D<r{+2}>/(r{+2})=-12.2|*10{+-6} {I59} by comparing isomeric shifts for {+234}U and {+237}Np, if |D<r{+2}>=-27|*10{+-3} {I5} fm{+2} for {+237}Np (1974Mo12). 
J 43.48|g to 0+ is E2. 
T from (|a)(ce)(t) in {+238}Pu decay. See also Coulomb excitation. 


level_energy_unit: KEV
level_spin_parity: 1-
level_comment:
J 742.81|g to 2+ is E1, 786.27|g to 0+ is (E1). Ratio of their reduced transition intensities is in good agreement with Alaga rule for K=0. 


level_energy_unit: KEV
level_spin_parity: 3-
level_comment:
J Coulomb excitation; (d,p), (d,d') data; reduced transition intensity ratio of |g rays to 2+ and 4+ states. 


level_energy_unit: KEV
level_spin_parity: 2+
level_lifetime_unit: PS
level_lifetime_info: ;ERR=GE
level_comment:
J 808|g to 2+ level is E0+E2. 
T calculated by the evaluators from B(E2)|<0.098 {I13} (1974Mc15), using a branching ratio of I|g(851|g)/total I(|g+ce) from level=0.2 


level_energy_unit: KEV
level_spin_parity: 2+
level_lifetime_unit: PS
level_comment:
J Coulomb excitation; |g rays to 0+ and 4+. 
T calculated by the evaluators from measured B(E2)=0.123 {I13} and I|g(926|g)/total I(|g+ce) from level=0.415 {I23}. 


level_energy_unit: KEV
level_spin_parity: (1,2+)
level_comment:
The levels seen in (d,d') and in 1.159-min {+234}Pa |b{+-} decay at 1174|+2 and 1174.2|+0.6 keV, respectively, are listed here as the same level solely on the basis of their energy. No structure information is available; level seen in (d,d') may be a different state than the state populated in the 1.159-min {+234}Pa |b{+-} decay. 
J |g's to 0+, 1-, 2- levels. 


level_energy_unit: KEV
level_spin_parity: 6-
level_comment:
J 67.1|g to 5- is M1+E2, 125.46|g to 4- is E2; |g rays to 6+ and 7- states; energy fit to the band. 


level_energy_unit: KEV
level_spin_parity: 1-
level_comment:
J 1237.22|g to 0+ is E1. Ratio of reduced transition intensities of 1237|g and 1194 |g is consistent with Alaga rule for K=0. 


level_energy_unit: KEV
level_spin_parity: 6-
level_lifetime_unit: US
level_comment:
J 351.9|g to 4- level is E2; 143.78|g to 7- is not quadrupole. (d,t) data support this assignment. 
T from |g|g(t) in 6.70-h {+234}Pa decay. 


level_energy_unit: KEV
level_spin_parity: (2-)
level_comment:
J |g ray only to 2+ member of the g.s. band, probable |g rays to 1- of the K=0 band and to 2- of the K=2 band may suggest J|p=1,2-. The authors in 1968Bj05 identified the 2- state of the K=1, {|n 7/2[743], |n 5/2[633]} band at 1464 keV in their (d,t) spectrum. The 1457-keV level populated in {+234}Pa |b{+-} decay might be the same 2- state, as suggested in 1975Ar23. The 475.5 and 453.6 |g rays from the 1911 level is consistent with this assignment. 


level_energy_unit: KEV
level_spin_parity: (5)
level_comment:
J |g ray to 6+ state and probably to 4-, |g ray from 4+ suggest J|p=4+,5|+. Nonobservations of |g-ray transitions to lower spin levels may imply J=5. 


level_energy_unit: KEV
level_spin_parity: (1)
level_comment:
J |g rays to 0+, 2+ levels; log| {Ift} for the |b{+-} feeding from 1.159-min {+234}Pa |b{+-} decay. 


level_energy_unit: KEV
level_spin_parity: (1)
level_comment:
J |g rays to 0+, 2+ levels; log| {Ift} for the |b{+-} feeding from (0-), 1.159-min {+234}Pa |b{+-} decay. 


level_energy_unit: KEV
level_spin_parity: 1+
level_comment:
J 1558.7|g to 2+ state is M1; 556.0|g to 0+ is mixed E2. 
A possible configuration is K=1, |n|n 7/2[624],5/2[633]. 


level_energy_unit: KEV
level_spin_parity: (1-)
level_comment:
J |g rays to 0+, 3- levels; log| {Ift} for the |b{+-} feeding from (0-), 1.159-min {+234}Pa |b{+-} decay. 


level_energy_unit: KEV
level_spin_parity: (1-)
level_uncertain: ?
level_comment:
J |g rays to 0+, 1-, 3- levels and log| {Ift} for the |b{+-} feeding from 1.159-min {+234}Pa |b{+-} decay suggest J|p=1-. 


level_energy_unit: KEV
level_spin_parity: (3+)
level_comment:
J |g rays to 2+, 4+ states, and |b feeding from {+234}Pa g.s. suggest 3|+, 4+. Spin-parity of 3+ was proposed in 1986Ar05 from intensity ratio of |g rays to the g.s. band. 


level_energy_unit: KEV
level_spin_parity: (0+,1)
level_comment:
J |g rays to 2+, 1+, 1- levels and log| {Ift} for the |b{+-} feeding from 1.159-min {+234}Pa suggest J|p=0+, 1|+. 


level_energy_unit: KEV
level_spin_parity: (1)
level_comment:
J |g rays to 0+, 1- levels and log| {Ift} for the |b{+-} feeding from 1.159-min {+234}Pa |b{+-} decay. 


level_energy_unit: KEV
level_spin_parity: (1-)
level_comment:
J |g rays to 0+, 2+, 3- levels; log| {Ift} for the |b{+-} feeding from 1.159-min {+234}Pa |b{+-} decay. 


level_energy_unit: KEV
level_spin_parity: (1)
level_comment:
The level observed in (d,d') at 1863 keV is assumed by the evaluators not to be the 5+ member of the K=3+ band seen in {+234}Pa ground state |b{+-} decay at 1863.1 keV, since the 3+ and 4+ members of this band are not populated in (d,d'). 
The level populated in (d,d') might be a completely different state than the one populated in 1.159-min {+234}Pa |b{+-} decay. 
J |g rays to 0+, 2+ levels; log| {Ift} for the |b{+-} feeding from 1.159-min {+234}Pa |b{+-} decay. 


level_energy_unit: KEV
level_spin_parity: 3-
level_comment:
J |g rays to 1-, 4+, and 4- states; |b feeding from 4+ {+234}Pa ground state. K=3, with |n 7/2[743]-|n 1/2[631] configuration was suggested in 1986Ar05. 


level_energy_unit: KEV
level_spin_parity: (1-)
level_comment:
J |g rays to 0+, 3- levels; log| {Ift} for |b{+-} feeding from (0-), 1.159-min {+234}Pa |b{+-} decay. 


level_energy_unit: KEV
level_spin_parity: 2+
level_lifetime_unit: PS
level_comment:
Other measured values: B(E2)=11.4 {I17} (1961Re02), 9.7 {I8} (1965Fr11), 10.3 {I3} (1971Fo17). 
T calculated by the evaluators from B(E2)=10.90 {I10} and |a(43.5|g)=724. T{-1/2}=0.252 ns {I7} was measured in {+238}Pu |a decay by |a|g(t) (1970To08). 


level_energy_unit: KEV
level_energy_info: ;ERR=?
level_spin_parity: 2+
level_lifetime_unit: PS
level_lifetime_info: ;ERR=GE
level_comment:
T calculated by the evaluators from B(E2) value and I|g(851|g)/(sum of I(|g+ce)'s from level)=0.27. 


level_energy_unit: KEV
level_energy_info: ;ERR=?
level_spin_parity: 2+
level_lifetime_unit: PS
level_comment:
T calculated by the evaluators from B(E2) value and I|g(926|g)/(sum of I(|g+ce)'s from level)=0.415 {I23}. 


level_energy_unit: KEV
level_energy_info: ;ERR=?
level_spin_parity: 7-
level_comment:
Line assumed to populate a doublet. The other component is assigned to populate a 3- member of the K|p=1- band (1968Bj05). 


level_energy_unit: KEV
level_energy_info: ;ERR=?
level_spin_parity: 3-
level_comment:
Line assumed to populate a doublet. The other component is assigned to populate a 7- member of the K|p=6- band (1968Bj05). 


level_energy_unit: KEV
level_energy_info: ;ERR=?
level_spin_parity: 6-
level_comment:
Line assumed to populate a doublet. The other component is assigned to populate a 9- member of the K|p=6- band (1968Bj05). 


level_energy_unit: KEV
level_energy_info: ;ERR=?
level_spin_parity: 9-
level_comment:
Line assumed to populate a doublet. The other component is assigned to populate a 6- member of the K|p=1- band (1968Bj05). 


level_energy_unit: KEV
level_spin_parity: 0+
level_lifetime_unit: Y
level_comment:
T$from inductively coupled plasma mass spectroscopy measuring number of {+230}Th to {+234}U over 3.5 years (2016Va13) 


level_energy_unit: KEV
level_spin_parity: 0+
level_lifetime_unit: Y
level_comment:
T$from multi-collector inductively coupled plasma mass spectroscopy measuring number of {+234}U to {+238}U (2013Ch13) 


level_energy_unit: KEV
level_spin_parity: 7/2-
level_lifetime_unit: Y
level_comment:
|m({+233}U)/|m({+235}U)=-1.5604 {I14}, consistent with 5/2[633] and 7/2[743] configurations for {+233}U and {+235}U ground states, respectively (1990Ga28). 
J$Measured - see 2013Ma15, 1955Va07, 1956Hu26, 1956Ka53, 1957Bl66, 1958Da21. Parity and configuration assignments are from |m, Q. 
Charge radius deduced from optical isotope shifts (1990Ga28) Others: 1998El02, 1992An17, 1997Be64. 
T$From 2004Sc03, weighted average (chi**/n-1=1.006) of 6.97|*10{+8} y {i24} (1939Ni03. Mass spectrometry. Measured Pb/U ratios in uranium ores); 7.11|*10{+8} y {i14} (1950Kn17. Specific activity method.); 6.77|*10{+8} y {i21} (1951Sa30, Measured {+235}U/{+238}U) activity ratios.); 7.12|*10{+8} y {i16} (1952Fl20. Specific activity method.); 7.64|*10{+8} y {i43} (1957Cl16. Measured {+235}U/{+238}U) activity ratios.); 6.95|*10{+8} y {i16} (1957Wu39. Measured {+235}U/{+234}U activity ratios.); 7.12|*10{+8} y {i9} (1965Wh05. Specific activity method); 7.06|*10{+8} y {i8} (1966Ba58), Mass spectrometry. 7.04|*10{+8} y {i1} (1971Ja07. Specific activity method); 6.79|*10{+8} y {i13} (1974De19. Measured {+235}U/{+238}U |a activity ratios); Other value: 7.04|*10{+8} y (Value recommended in 2000Ho27.) Others: 1965De06, 1971Ar48, 1974Ja17, 1993Bu10. 
T{-1/2}(SF)=1.0|*10{+19} y {I3}, value recommended in 2000Ho27 from T{-1/2}(SF)=9.8|*10{+18} y {I28} (1981Vo02); T{-1/2}(SF)>1.8|*10{+18} y (1974GrZA); T{-1/2}(SF)=0.35|*10{+18} y {I9} (1966Al23); T{-1/2}(SF)=0.18|*10{+18} y (1952Se67). 
%{+20}Ne/%|a=8|*10{+-12} {I4} (1989Tr11,1991Bo20). 
{+24}Ne emission (1997Ka11). 
T{-1/2}({+25}Ne)|?9|*10{+19} yr. Other: 1997Tr17. 
T{-1/2}({+28}Mg)=8.8|*10{+20} yr (1998Ro11,1997Ro24); other value: >9|*10{+20} (1997MiZP). 
Q({+233}U)/Q({+235}U)=0.975 {I3} (1990Ga28) 


level_energy_unit: KEV
level_spin_parity: 1/2+
level_lifetime_unit: MIN
level_lifetime_info: ;ERR=AP;ISO=M1
level_comment:
T depends on chemical environment (1966Ma20,1968Ne04,1974Ne09,1971Ar48,1972Ne12). T{-1/2}=25.7 min {I4} in LASER produced plasma (1979Iz02). 
T$T{-1/2}=230 min. {+235m}U placed in a silver matrix. Drastic change in T{-1/2} may be due to a special electromagnetic field resonance (1993Ko32,1989Ko52). Others: 1992Vs01, 1992Vo05. 
Ultra-violet laser excitation of {+235}U (1992Bo26). 
J favored |a decay from 1/2+ {+239}Pu 


level_energy_unit: KEV
level_spin_parity: 9/2-
level_lifetime_unit: PS
level_lifetime_info: ;ERR=AP
level_comment:
T$from B(E2)=6.7, average of B(E2)=4.834 {I16} in muonic atom, B(E2)=7.4 {I7} in Coulomb excitation (1957Ne07), and B(E2)=8.0 {I12} in (d,d'). The approximate value of the half-life is due to the large uncertainty in the E2 |g-ray mixing ratio (|d=0.14 {I14}). 


level_energy_unit: KEV
level_spin_parity: 11/2-
level_lifetime_unit: PS
level_comment:
T from B(E2)=1.18 {I16} (1957Ne07) and B(E2)=1.19 {I4} in muonic atom (1984Zu02). Other value: B(E2)=2.2 {I3}, in (d,d'). 


level_energy_unit: KEV
level_spin_parity: (5/2+)
level_comment:
J |g-ray de-excitation; not detected in average res. neutron capture. Detected in thermal neutron capture. 


level_energy_unit: KEV
level_spin_parity: (5/2-)
level_comment:
J |g-ray de-excitation (E1 to 5/2+, |g's to 7/2+, 3/2+); Conversely, 1972Ri08 suggested J|p=5/2+, possible configuration 5/2[633]|*0+ 


level_energy_unit: KEV
level_lifetime_unit: MS
level_lifetime_info: ;ISO=M2
level_comment:
E,T$Fission isomer (2007Ob02). 
From 2007Ob02 
From {+234}U(n,F), |s(SF)=10 |mb {i8}. Produced with neutrons of E(n)=0.95 and 1.27 MeV. Separated with the isomer spectrometer neptune at the Van de Graaff laboratory of the irmm, Geel, Belgium. 


level_energy_unit: KEV
level_spin_parity: 7/2-
level_comment:
|b(2)=0.2485 {I13}; |b(4)=0.091 {I4}. The quoted uncertainties are statistical only. 1984Zu02 estimated additional 0.5% and 2.0% model uncertainties for |b(2) and |b(4), respectively. 


level_energy_unit: KEV
level_spin_parity: 1/2+
level_lifetime_unit: MIN
level_lifetime_info: ;ERR=AP;ISO=M
level_comment:
E$from Adopted Levels. 1971CuZU reported E=0.572 {I33} (calorimetry); This result does not agree with the value adopted here. 


level_energy_unit: KEV
level_lifetime_unit: MS
level_comment:
E,T$Fission isomer (2007Ob02). 
From {+234}U(n,F), |s(SF)=10 |mb 8. Produced with neutrons of E(n)=0.95 and 1.27 MeV. Separated with the isomer spectrometer neptune at the Van de Graaff laboratory of the irmm, Geel, Belgium. 


level_energy_unit: KEV
level_spin_parity: 7/2+
level_comment:
B(E3)=0.078 {I20} 
J J|p=9/2+, assigned in 1978St11, disagrees with J|p=7/2+, assigned in (n,|g) (1979Al03). 


level_energy_unit: KEV
level_spin_parity: 9/2-
level_lifetime_unit: PS
level_lifetime_info: ;ERR=AP
level_comment:
T$from B(E2)=6.7, average of B(E2)=4.834 {I16} in muonic atom. B(E2)=7.4 {I7} in Coulomb excitation (1957Ne07), and B(E2)=8.0 {I12} in (d,d'). The approximate value of the half-life is due to the large uncertainty in the E2 |g-ray mixing ratio (|d=0.14 {I14}). 


level_energy_unit: KEV
level_spin_parity: 1/2+
level_lifetime_unit: MIN
level_lifetime_info: ;ERR=AP;ISO=M
level_comment:
E$from fitting a summed spectra of four independent measurements using different STJ detectors (2018Po07). Fits to individual spectra resulted in energies of 76.739 eV {I22}, 76.741 eV {I28}, 76.758 eV {I24}, and 76.694 eV {I25}. Uncertainty includes 0.013 eV (statistical) and 0.013 (systematic) added in quadrature. 


level_energy_unit: KEV
level_spin_parity: 1/2+
level_lifetime_unit: MIN
level_comment:
T$from the weighted average of 26.40 m {I6}, 26.39 m {I5}, 26.38 m {I5} and 26.30 m {I5} using {+235m}U on Cu sheet sample and deduced from the decay curves. Other: 25.97 m {I3} from the weighted average of 25.91 m {I7}, 26.01 m {I8}, 25.81 m {I10}, 25.87 m {I7}, 26.10 m {I7}, 25.96 m {I6}, 26.10 m {I7} and 25.92 m {I8} using {+235m}U that reacted with the HF/N{-2} gas sample and 26.33 m {I3} from the weighted average of 26.25 m {I9}, 26.35 m {I8}, 26.49 m {I9}, 26.01 m {I10}, 26.42 m {I8} and 26.37 m {I7} using {+235m}U that reacted with the O{-2} gas sample. 


level_energy_unit: KEV
level_spin_parity: 1/2+
level_lifetime_unit: MIN
level_lifetime_info: ;ISO=M
level_comment:
T$deduced by compiler from overlap of the following half-lives determined for |a-recoil implanted samples (method A) or for electrodeposited samples (method B) with different backing materials: 26.76 min {I4} (method A, Al backing); 27.4 min {I7} (method A, Ti backing); 25.7 min {I2} (method A, Ag backing); 29.01 min {I24} (method A, NaCl backing); 25.46 min {I4} (method B, Ti backing); 26.37 {I5} (method B, Pt backing); 25.62 min {I11} (method B, stainless steel backing). 2015Be11 state that uncertainties are statistical and that systematic uncertainties associated with the data acquisition system clock are considered negligible. Due to low-energy electrons emitted by the isomer, the half-life is highly dependent on the chemical environment of the sample. Other: |?26 min in {+235}U Adopted Levels in the ENSDF database 
$Measured integral |s=1.00 b {I13} (2015Be11) 


level_energy_unit: KEV
level_spin_parity: 0+
level_lifetime_unit: Y
level_comment:
T$recommended value in 1989Ho24, based on measured values of 2.45|*10{+7} y {I7} (1951Ja09), 2.391|*10{+7} y {I18} (1952Fl20) and 2.3415|*10{+7} y {I39} with uncertainty adjusted from 0.06% to 0.25% (1972Fl03). 
%SF$from T{-1/2}(SF)=2.49|*10{+16} y {I11}, the weighted average of 2.0|*10{+16} y {I16} (1949JaZZ), 2.7|*10{+16} y {I3} (1971Co35 taking T{-1/2}(SF)({+238}U)=8.2|*10{+15} y {I1} in 2000Ho27), 2.43|*10{+16} y {I13} (1981Vo02) and 2.7|*10{+16} y {I4} (1982BeYI,1983Be66). 
$Q{-0}=13.8 b{+2} {I2} from Isotope shifts (1978Ge10). 


level_energy_unit: KEV
level_spin_parity: 2+
level_lifetime_unit: PS
level_comment:
T$from {+240}Pu |a decay; other: 218 ps {I4} deduced using measured B(E2)|^ value from Coul. ex. 
J$E2 |g to 0+ and g.s. band member 
$Q({+236}U)/Q({+234}U)=1.13 {I9} (1974Me18), 0.99 {I5} (1974Mo12) 
$Ratio of gyromagnetic factors g-factor ({+236}U)/g-factor ({+234}U)=0.98 {I6} (1974Me18) 
$Measured isotopic shift, gyromagnetic factors. |D<r{+2}>/<r{+2}>=-21|*10{+-6} {I21} (1974Mo12), <6|*10{+-6} (1974Me18) 
BE2$from Coul. ex.; other: 12.2 {I6} from {+236}U(d,d'). 


level_energy_unit: KEV
level_spin_parity: 4+
level_lifetime_unit: PS
level_comment:
J$E2 |g to 2+ and g.s. band member 
T$weighted average of 124 ps {I7} (1976Gu06) from Coul. ex. and 142 ps {I10} (1970ToZZ) from {+240}Pu |a decay. 
$B(E4)|^=1.7 e{+2}b{+4} {I6} (1973Be44) from Coul. ex. 


level_energy_unit: KEV
level_spin_parity: 2+
level_comment:
BE2$from (d,d'); other: 0.18 {I2} from Coul. ex. 
J$|g to 2+, |g to 0+, L(p,t)=(2), Coul. ex. and (d,d'), probable bandhead of K|p=2+ 


level_energy_unit: KEV
level_spin_parity: 4-
level_lifetime_unit: NS
level_comment:
J$(E1) |g to 4+, M1+E2 |g to 3-, (d,p) favors 4-. 
T$weighted average of 97 ns {I6} (1979McZP, 1978ClZR), 103 ns {I6} (1980Bu13) and 125 ns {I20} (1973Br05). 
$Configuration=((|n 1/2[631])+(|n 7/2[743])) from (d,p) strength 


level_energy_unit: KEV
level_spin_parity: (1,2)
level_uncertain: ?
level_comment:
J$populated by 1170|g from 2750-keV (J|p=0+) fission isomer. 
E$Possible but unlikely the order of 1580 and 1170 are reversed which would result instead with a level at E(level)=1170. 


level_energy_unit: KEV
level_spin_parity: (0+)
level_lifetime_unit: NS
level_comment:
%IT,%SF$deduced from weighted average of |G(|g)/|G(f)=7 {I2} (1976An11) and |G{-|g}/|G{-f}=8 {I3} (1989Sc30) with %|a=0. Others: |G{-|g}/|G{-f}|?6 (1978Gu02), |G{-|g}/|G{-f}<4.5 (1980Bu13), |G{-|g}/|G{-f}=8 {I3} (1989Sc30), |G(|g)/|G(f)<1.5 (1978Ba47), |G{-|g}/|G{-f}=6.6 {I6} (2020Ba53) for En=0.2-1.2 eV and |G{-|g}/|G{-f}=12.5 {I18} (2020Ba53) for En=1.2-12 eV; %SF|?10 (1979Be33) 
%A$<10, quoted by 1989Sc30 from unpublished work, and no reported measurements. 
J$(E1) |g to 1-; interpreted as the g.s. in second minimum of the nuclear potential. 
T$weighted average of 68 ns {I6} (2020Ba53), 66 ns {I3} (2020Ba53), 92 ns {I15} (1972PiZR), 80 ns {I20} (1971Bo61), 70 ns {I30} (1971Be62), 70 ns {I14} (1970Re05) and 66.6 ns {I87} (1970El03). Others: 110 ns {I50} (1969La14), 105 ns {I20} (1970Wo06), 130 ns {I15} (1971Br38), 130 ns {I40} (1972Pe01), 116 ns {I7} (1975Ch09), 120 ns {I15} (1977Bo09), 115 ns {I5} (1978Gu02,1980Gu20), 137 ns {I18} (1982Go02), 125 ns {I30} (1989Sc30), 121 ns {I2} (1989Ma57,1990Ma59), 144 ns {I32} (1974HeZE), |?110 ns (1972HoXQ), and 114 ns {I46} (1970Vi05). Data are clustered around two values, one approximately 70 ns and the other approximately 120 ns. Evaluator adopts the former, as 2020Ba53 note the possibility of contributions of higher lying states in measurements with longer lifetimes. 
E$from {+235}U(d,p|g). Others: |?2400 keV (1968Ca23,1969Bj02), <2960 (1970El03), |?2350 (1970So06) and 2795 keV {I5} (1987ScZP). 
$ce's preceding fission observed, interpreted as g.s. cascade in second minimum with inertia constant A=3.54 (1974HeZE), and A=3.36 keV {I1} (1977Bo09) following E=AJ(J+1). 
$One ternary fission per 160 binary fissions observed by 1989Ma57, 1989Ma54 


level_energy_unit: KEV
level_spin_parity: (4)-
level_lifetime_unit: NS
level_comment:
T$weighted average of 125 ns {I20} (1973Br05) and 103 ns {I6} (1980Bu13). 
J$based on two-quasineutron configuration |n7/2-[743]~#|n1/2+[631] and comparison with (d,p) results (1973Br05). 


level_energy_unit: KEV
level_spin_parity: (0+)
level_lifetime_unit: NS
level_comment:
T$from Adopted Levels. Measured: 110 ns {I50} (1969La14), 130 ns {I15} (1971Br38), 130 ns {I40} (1972Pe01), 116 ns {I7} (1975Ch09), 120 ns {I15} (1977Bo09), 115 ns {I5} (1978Gu02) and 125 ns {I30} (1989Sc30). 
E$from 1989Sc30, other: 2795 keV {I5} (1987ScZP). 
%IT,%SF,%A$from 1989Sc30. 
J$ground state of the fission isomer and |g|g angular correlations (1989Sc30). 
$|G{-|g}/|G{-f}=7 {I2} (1976An11), |G{-|g}/|G{-f}|?6 (1978Gu02), |G{-|g}/|G{-f}<4.5 (1980Bu13) and |G{-|g}/|G{-f}=8 {I3} (1989Sc30). 


level_energy_unit: KEV
level_spin_parity: (2+)
level_comment:
E$a rotational band with E=AJ(J+1) deduced based on the maximum likelihood of conversion electron spectrum (1977Bo09). 


level_energy_unit: KEV
level_spin_parity: (0+)
level_lifetime_unit: NS
level_comment:
E,J$from Adopted Levels. 
$observed in {+236}U(d,pnf) with roughly factor 10 higher isomer population cross-section (1970Wo06,1980Ti03,1982Go02). 
T$From Adopted Levels. Measured: 105 ns {I20} (1970Wo06) and 137 ns {I18} (1982Go02). 
%IT,%SF$from Adopted Levels. 


level_energy_unit: KEV
level_spin_parity: (0+)
level_lifetime_unit: NS
level_lifetime_info: ;ERR=LT
level_comment:
J$proposed as the bandhead of a K=0+ |b band in the second potential minimum (1982Go02). 
T$estimated from the FWHM of the conversion electron peak of the 684-keV transition (1982Go02). 


level_energy_unit: KEV
level_spin_parity: 2+
level_comment:
BE2$unweighted average of 12.4 {I8} (deduced from real form factor) and 12.0 {I10} (deduced from complex form factor). 
$d|s/d|W(90|')/d|s/d|W(125|')=2.37 {I17}. 


level_energy_unit: KEV
level_spin_parity: 1-
level_comment:
$d|s/d|W(90|')/d|s/d|W(125|')=0.40 {I6}. 
J$based on the energy and intensity pattern of the groups at 686, 746, and 848 keV that strongly resemble those of the K|p = 0- bands in neighboring actinide nuclei {+232}Th, {+234}U, {+238}U and {+242}Pu. 


level_energy_unit: KEV
level_spin_parity: 3-
level_comment:
BE3$unweighted average of 0.67 {I6} (deduced from real form factor) and 0.72 {I8} (deduced from complex form factor). 
$d|s/d|W(90|')/d|s/d|W(125|')=2.4 {I3}. 


level_energy_unit: KEV
level_spin_parity: 2+
level_comment:
BE2$unweighted average of 0.19 {I2} (deduced from real form factor) and 0.20 {I2} (deduced from complex form factor). 
J$proposed as member of a K=2 |g-vibrational band, from systematics of this state in other actinides. 
$d|s/d|W(90|')/d|s/d|W(125|')=2.5 {I3}. 


level_energy_unit: KEV
level_spin_parity: 3-
level_comment:
BE3$unweighted average of 0.34 {I2} (deduced from real form factor) and 0.35 {I4} (deduced from complex form factor). 
$d|s/d|W(90|')/d|s/d|W(125|')=1.8 {I3}. 


level_energy_unit: KEV
level_spin_parity: (3-)
level_comment:
BE3$unweighted average of 0.26 {I4} (deduced from real form factor) and 0.26 {I4} (deduced from complex form factor). 
$d|s/d|W(90|')/d|s/d|W(125|')=1.5 {I2}. 


level_energy_unit: KEV
level_spin_parity: 2+
level_lifetime_unit: PS
level_comment:
BE2$from 1973Be44; others: 13.1 {I20} (1961Re02), 11.62 {I23} (1971Fo17) 
T$from B(E2) and |a=589 {I9} of neutral atoms without being corrected for changes due to high ionic charge. 


level_energy_unit: KEV
level_spin_parity: 1/2+
level_lifetime_unit: D
level_comment:
J primary |g intensities from average-resonance neutron capture; L=0,1 for (0.0 + 11) keV levels in ({+3}He,|a). High hindrance factor for the |a decay from {+241}Pu is consistent with a spin-flip transition from 5/2[622] state to 1/2[631] state. 
T From 1958Ca16. Others: 6.63 d {I5} (1949Me43), 6.75 d {I1} (Huizenga and Flynn, quoted in 1953Wa05), 6.3 d {I1} and 6.6 d {I1} from |g- and |b-activity, respectively, in 1963Ak04. 


level_energy_unit: KEV
level_spin_parity: 3/2+
level_comment:
J hindrance factor for the |a decay from {+241}Pu; L=0 or 1 in ({+3}He,|a) for a 5 keV level, doublet with g.s.; primary |g intensities from average-resonance neutron capture. Band member. 


level_energy_unit: KEV
level_spin_parity: 5/2+
level_comment:
J |a hindrance factor; (d,t) reaction; weakly populated in 2-keV average-resonance neutron capture. Band member. 


level_energy_unit: KEV
level_spin_parity: 5/2+
level_lifetime_unit: NS
level_comment:
J favored |a feeding from {+241}Pu. Band assignment. 
T From |a|g(t) in {+241}Pu |a decay (1968Ah01). 


level_energy_unit: KEV
level_spin_parity: (7/2)-
level_lifetime_unit: NS
level_comment:
J 114.0|g E1 to 5/2+ state. |a HF=90 is consistent with the assignment. Band assignment from analogy with the 391.6 keV {+239}Pu level of half-life 193 ns. 
T From |a|g(t) in {+241}Pu |a decay (1968Ah01). 


level_energy_unit: KEV
level_spin_parity: (9/2-)
level_comment:
E From {+241}Pu |a decay. 
J |a hindrance factor and level spacing from 274-keV level suggest (9/2-), 7/2[743] assignment. 


level_energy_unit: KEV
level_spin_parity: (13/2-)
level_comment:
Level was assumed doublet; 13/2-,7/2[743] and 13/2+, 5/2[622] assignments were suggested in 1970Vo03 from ({+3}He,|a) data. 


level_energy_unit: KEV
level_spin_parity: 1/2-
level_comment:
J primary |g intensities from average-resonance neutron capture; |g branchings to 1/2+, 3/2+ levels. 


level_energy_unit: KEV
level_spin_parity: (1/2)+
level_comment:
J J|p=1/2+, 3/2+ from primary |g intensities measured in average-resonance neutron capture. Energy spacing from 872.15 (3/2+) and 893.4 {I3} (5/2+) levels is consistent with this level being the 1/2+ member of a K=1/2 band. 


level_energy_unit: KEV
level_spin_parity: 1/2-
level_comment:
J primary |g intensities from average-resonance neutron capture; |g branching to the 1/2+, 3/2+ levels of the g.s. band; L=0,1 in (d,t). 


level_energy_unit: KEV
level_spin_parity: (3/2,5/2-)
level_comment:
J From log| {Ift} value in {+237}Pa |b{+-} feeding from (1/2+) level; |g to 5/2+ level; (d,t) data. 3/2-, 1/2[501] state was assigned in {+237}Pa |b{+-} decay. Nonobservation of this level in average n-capture, casts doubt on this assignment. 


level_energy_unit: KEV
level_spin_parity: (1/2)+
level_comment:
J primary |g intensities from average-resonance neutron capture; |g branching to the 1/2+, 3/2+, 5/2+ states of the g.s. band. 


level_energy_unit: KEV
level_spin_parity: 1/2-,3/2-
level_comment:
J primary |g intensities from average-resonance neutron capture. 3/2-, 1/2[501] assignment was suggested in 1979Vo03. 


level_energy_unit: KEV
level_spin_parity: (5/2-)
level_comment:
E From ({+3}He,|a). 
J From spectroscopic factor in ({+3}He,|a) and (d,t) (J|p=3/2- and 5/2- in (d,t) dataset). 


level_energy_unit: KEV
level_spin_parity: (7/2-, 9/2-)
level_comment:
E Possibly doublet. 
J$From expt. spectroscopic factor - twice than calculated value. 
7/2- and 9/2- states of the 1/2[501] band were suggested in 1970Bo31 for this level, assumed to be a doublet. 


level_energy_unit: KEV
level_comment:
J|p=(1/2+) and 1/2[620] assignment is suggested in (d,p). This level might be the same state observed in (n,|g) at 1108.8 keV. 


level_energy_unit: KEV
level_spin_parity: (1/2-)
level_comment:
J primary |g intensities in average-resonance neutron capture suggest J|p=1/2(-),3/2(-). Relative photon intensities of the gammas deexciting the level are not in good agreement with the Alaga rule for K=J=3/2. 


level_energy_unit: KEV
level_spin_parity: (1/2)+
level_comment:
J populated in 2-keV average-resonance neutron capture with a moderate intensity, suggesting J|p=1/2+,3/2+. Relative photon intensities of the gammas deexciting the level are not in good agreement with the Alaga rule for K=J=3/2. 


level_energy_unit: KEV
level_spin_parity: 9/2+
level_comment:
(d|s/d|W(exp))/((2J+1) d|s/d|W(DWBA))=0.048 {I16} (1972Er03); contribution from other doublet member was removed. Cross sections for the 5/2+, 5/2[622] state was estimated from its yield in {+236}U(d,t){+235}U reaction. 


level_energy_unit: KEV
level_spin_parity: 11/2+
level_comment:
(d|s/d|W(exp))/((2J+1) d|s/d|W(DWBA))=0.065 {I18} (1972Er03); contribution from other doublet member was removed. Cross sections for the 7/2+, 5/2[622] state was estimated from its yield in {+236}U(d,t){+235}U reaction. 


level_energy_unit: KEV
level_spin_parity: 15/2-
level_comment:
The observed spectroscopic factor is about 1/3 of the calculated one. The assignment to the 5/2[752] band was based on, in addition to the deduced L value, an analogy to the levels known in {+235}U; the energy difference observed in {+235}U between the 15/2, 5/2[752] state and the 7/2[743] band yielded an expected energy of 1200 keV for the 15/2, 5/2[752] state (1970Vo03). 


level_energy_unit: KEV
level_comment:
One of the levels populated at 1531, 1849 and 1888 keV may possibly be the 15/2-,3/2[761] state; this assignment to the 1849-keV level was tentatively made in order to perform Coriolis calculations between the 7/2[743], the 5/2[752] and the 3/2[761] bands (1970Vo03). 
S=2.0 if J|p=15/2-. 


level_energy_unit: KEV
level_comment:
May possibly be the 13/2+, 13/2[606] or 13/2+, 13/2[615] state (1970Vo03). See also the comment for the 1849-keV level. 
S=1.4 if J|p=13/2+ 


level_energy_unit: KEV
level_spin_parity: 0+
level_lifetime_unit: Y
level_comment:
%SF$from recommended T{-1/2}(SF) of 2000Ho27 
Intrinsic electric-quadruple moment: Q{-0}=13.9 {I20} deduced by 1978Ge10 from optical isotope shift. Other measurement: Q{-0}=11.12 {I7} (from Coulomb excitation). Other: 2002Ob01. 
$|D<r{+2}>({+233}U-{+238}U)=-0.432 fm{+2} {I43} (1996El03) 
T$Weighted average (chi**/n-1=4.0) of 4.468|*10{+9} y {i5}, specific activity method (1971Ja07); 4.457|*10{+9} y {4}, specific activity method (1959St45); 4.51|*10{+9} y {2}, specific activity of natural uranium (1955Ko13); and 4.495|*10{+9} y {18}, specific activity of enriched uranium (1949Ki26), recommended in 2004Sc03. 
T$Other values: 4.51|*10{+9} y (1957Cl16), 4.56|*10{+9} y {I3} (1957Le21), 
T Half-life ratio T{-1/2}({+238}U)/T{-1/2}({+235}U)=6.351 {I31} (2008Po06). 
T{-1/2}(SF)=9.86|*10{+15} y {I15} (1968Ro15), 8.1|*10{+15} y {I3} (1952Se67), 7.19|*10{+15} y {I4} (1967Is04), 8.23|*10{+15} y {I10} (1967Sp12), 8.19|*10{+15} y {I6} (1970Ga27), 11|*10{+15} y {I2} (1971Co35), 10.2|*10{+15} y {I9} (1971Kl14), 9.50|*10{+15} y {I21} (1971Le11), 8.7|*10{+15} y {I10} (1971Sa08), 8.0|*10{+15} y {I4} (1971Th17), 9.9|*10{+15} y {I5} (1972Ni19), 10.2|*10{+15} y {I8} (1973Kh10), 9.73|*10{+15} y {I44} (1974Iv04), 9.6|*10{+15} y {I3} (1975Em03), 8.0|*10{+15} y {I6} (1975Wa37), 8.09|*10{+15} y {I40} (1976Th12), 8.43|*10{+15} y {I21} (1978Ka40), 6.77|*10{+15} y {I15} (1978Ri07), 8.8|*10{+15} y {I4} (1980Po09), 7.48|*10{+15} y {I15} (1980Sp10), 10.5|*10{+15} y {I3} (1981Ba70), 5.9|*10{+15} y {I4} (1982De22), 8.3|*10{+15} y {I4} (1983Be66), 8.42|*10{+15} y {I44} (1984Va35), 8.29|*10{+15} y {I27} (1985Iv01). 8.30|*10{+15} y {I16} (weighted average). 2000Ho27 recommend T{-1/2}(SF)=8.2|*10{+15} y {I1} based on a weighted average of a selected set of the above values. Other values: 8.00|*10{+15} y {I35} (2003Gu18); 8.15|*10{+15} y {I17}, "Solid State Nuclear Track Detectors (SSNTD)" (2005Yo12). 
$Calculated T{-1/2}(SF): 2005De44, 2005Re16, 2005Xu01, 1976Ra02. 
Other T{-1/2}(SF) measurements: 2010Sa09, 2003Ha06, 1966Ra25, 1964Fl07, 1963Me14, 1959Ku81, 1959Ge30, 1984Va34. 
The effects of boron and lithium on the ratio of induced to spontaneous fission in natural uranium were measured by 1979At01. 


level_energy_unit: KEV
level_spin_parity: 2+
level_lifetime_unit: PS
level_comment:
$|m: 1998Ts13 quote |m=0.254 {I15} in the abstract, but in the body of the paper, this same value is given as the g factor 
Q({+238}U)/Q({+234}U)=1.13 {I10}; |m({+238}U)/|m({+234}U)= 0.94 {I9} (1974Me18). 
T from B(E2)=12.30 {I15} in Coul. ex. and |a=609. Other: 225 ps {I20} from (|a)(ce 45|g)(t) in {+242}Pu |a decay (1960Be25). 


level_energy_unit: KEV
level_spin_parity: 2+
level_lifetime_unit: PS
level_comment:
T from B(E2)=0.017 {I7} and I|g(967|g)=12.0% {I5} 
J 921.19|g to 2+ is E0+M1+E2. The ratio of reduced transition intensities of 966, 818 gammas is in better agreement with the Alaga rule for K=0 than for K=1 or K=2: B(E2)(966|g)/B(E2)(818|g)=0.118 {I8} observed in Coul. ex., 0.389 theory for K=0, 0.875 theory for K=1, 14.0 theory for K=2. 


level_energy_unit: KEV
level_spin_parity: 2+
level_lifetime_unit: PS
level_comment:
T$from B(E2)=0.0645 {I64} in Coulomb excitation and %I|g(1037|g)=30.8 {I8} 
J$993.0|g to 2+ is E0+M1+E2. 


level_energy_unit: KEV
level_spin_parity: 2+
level_lifetime_unit: PS
level_comment:
T$from B(E2)=0.133 {I8} in Coulomb excitation and %I|g(1060|g)=40.0 {I7} 
J gammas to 0+,2+,4+ levels 


level_energy_unit: KEV
level_spin_parity: 4+
level_comment:
J$from |g(|q) and yield in Coulomb excitation 
$Assigned by 1994Mc04 as the 4+ member of the K=2 |g-vibrational band; however, 1996Wa11 show that this band member has an energy of 1163 
J fit to a band. 


level_energy_unit: KEV
level_spin_parity: 2+
level_lifetime_unit: PS
level_comment:
T$from B(E2)=0.0123 {I12} in Coulomb excitation and %I|g(1224|g)=41.6. The evaluators assume that the uncertainty in the branching is negligible compared with that in the B(E2) value 


level_energy_unit: KEV
level_spin_parity: 2+
level_lifetime_unit: PS
level_comment:
T$from B(E2)=0.00428 {I43} in Coulomb excitation and %I|g(1278|g)=15.0. The evaluators have assigned an uncertainty of 5% to this branching to get an uncertainty on T{-1/2} 


level_energy_unit: KEV
level_comment:
E$proposed by 1980MiZL in (n,n'|g). The deexciting 1336|g is placed by 1984BlZS from the 2163 level; however, the transition is seen by 1980MiZL, whose bombarding energy is E(n)<1960 


level_energy_unit: KEV
level_energy_info: ;ERR=?
level_spin_parity: 7+
level_comment:
$The existence of this level in (n,n'|g) is not definite, since it is based on the observation of an 885.8 {I2} transition that is doubly placed 


level_energy_unit: KEV
level_spin_parity: 2+
level_lifetime_unit: PS
level_comment:
T$from B(E2)=0.00549 {I55} in Coulomb excitation and %I|g(1413.3|g)=12.9. The evaluators have assigned an uncertainty of 5% to this branching to get an uncertainty for T{-1/2} 


level_energy_unit: KEV
level_spin_parity: 2+
level_lifetime_unit: PS
level_comment:
T$from B(E2)=0.0105 {I11} in Coulomb excitation and %I|g(1530|g)=4.67. The evaluators have assigned an uncertainty of 5% to this branching to get an uncertainty for T{-1/2} 


level_energy_unit: KEV
level_spin_parity: 2+
level_lifetime_unit: PS
level_comment:
T$from B(E2)=0.0179 {I18} in Coulomb excitation, and %I|g(1782.0|g)=44.8. The evaluators have assigned an uncertainty of 5% to the branching to get an uncertainty for T{-1/2} 


level_energy_unit: KEV
level_energy_info: ;ERR=?
level_spin_parity: (3-)
level_comment:
E$level proposed in |b decay, but two common transitions suggest population in (n,n'|g) also; however, the branchings are not in agreement. The evaluators have added several transitions from (n,n'|g) based on energy fit alone. 


level_energy_unit: KEV
level_spin_parity: 0+
level_lifetime_unit: NS
level_lifetime_info: ;ISO=M1
level_comment:
$Intrinsic electric quadrupole moment=29 {I3} (1979Ul01) 
$%ternary fission |?0.1 (1989Ma54) %|a<0.5 (1971Be62) 
J 2558|g to 0+ is E0. 
T from IT decay 


level_energy_unit: KEV
level_spin_parity: 1-
level_lifetime_unit: PS
level_comment:
J J=1 from angular correlation, |p=- based on the relative intensities of the deexciting |g transitions. 


level_energy_unit: KEV
level_spin_parity: 0+
level_lifetime_unit: NS
level_lifetime_info: ;ISO=M1
level_comment:
Intrinsic electric-quadruple moment: Q{-0}=29 {I3} (1979Ul01) 
J 2558|g to 0+ is E0. 
|s(d,pn|g)/|s(d,pnSF)=15 to 25 (1975Ru03). |G(45|g)/|G(SF)=10 (1976Be55). See 1972We09 for predicted T{-1/2}(SF) and T{-1/2}(|g). 
T weighted average of (n,n') values of 270 ns {I40} (1974WoZW), 300 ns {I32} (1977VoZU), 290 ns {I30} (1983Dm04), 267 ns {I13} (1989Ma54), 274 ns 10 (1991Ku23) and (d,pn) values of 295 ns {I15} (1974WoZW), and 298 ns 18 (1992St05). Others: (d,pn) values of 200 ns {I70} (1970Po01), 195 ns {I30} (1970Wo06), 191 ns {I44} (1975Ru03), 184 ns {I13} (reference 13 of 1991Ku23) and 211 ns {I60} (1982Go02) cluster around 200 ns, and (d,pn) values of 110 ns {I30} (1970Re05) and 130 ns {I50} (reference 13 of 1991Ku23), the (n,n') value of 125 ns {I35} (1977ArZZ) and the (|g,|g') values of 146 ns {I22} (1983Dr14) and 155 ns {I33} (1985Dr01) are lower still. See 1991Ku23 for a discussion of these data. These authors argue against the earlier suggestions that there could be two isomers. See also the discussion in 1992St05 of the T{-1/2} discrepancies. 
For calculated energy, see 1969Ni13, 1971Pa33, 1972Mo27, 1972Ma11, 1972We09, 1994Kr06. 
%SF$1992St05 report |s(|mb)(1879|g+2513|g)=132 {I26}, and 1975Ru03 report 130 {I32}. 1992St05 estimate |s(|mb)=80 {I30} for unobserved decay to the six known 1- and 2+ states and 1975Ru03 estimate 70 {I20}. 1983Ka11 report 0.230 |mb {I50} for decay of the 2558 E0 transition via ce(K). A weighted average for decay from the isomer based on these data is 206 |mb {I28}. With |s=5.4 |mb {I}4 for delayed fission as quoted by 1992St05 from 1980Ti03 and 1970Wo06, one gets %SF=2.6 {I4} and %IT=97.4 {I4}. Other: 1983Ka11 report |s(2513|g)<50 |mb, and 1984Ka10 report 42 |mb {I12}. 


level_energy_unit: KEV
level_spin_parity: 1
level_lifetime_unit: PS
level_comment:
J$from |g(|q) (1981Mu05) 
E$from line shape analysis using E|g({+56}Co source)=3253.417 {I14} (1981Mu05) 
T$from |s, with |G{-|g0}/|G=0.25 {I5}. Value is from 1982Ru03, and corresponds to |G{-|g0}=5.2|*10{+-4} eV {I19}. The earlier publication, 1981Mu05, gives |G{-|g0}=4.9|*10{+-4} eV {I18} and T{-1/2}=0.23 ps {I8} 


level_energy_unit: KEV
level_comment:
J$level may correspond to the known 997 {I0}+, 3- doublet. The authors were not aware of the 997 {I3}- level, discovered later. They point out that |s(E) does not agree well with 0+, but that a good fit is obtained for 1+. No 1+ level is known in this energy region from other experiments 


level_energy_unit: KEV
level_spin_parity: 2+
level_lifetime_unit: PS
level_comment:
BE2 from 1973Be44. This value supersedes that of 11.70 {I15} given in 1971Mc21 and 1971Fo17. Others: 13.2 {I20} (1961Re02), 12.7 {I7} (1961Sk01) 
T from B(E2) with |a=609. This value is the E2 theory value reduced by 2% (see 1987Ra01) 


level_energy_unit: KEV
level_spin_parity: 1-
level_comment:
BE1$1981Al02 give 0.00044 {I13} for a positive M3/M1 matrix element, and 0.00053 {I14} for a negative ratio 


level_energy_unit: KEV
level_spin_parity: 2+
level_comment:
$B(E2)=5.76|*10{+-3} {I35} (1994Mc03), 0.017 {I7} (1974Mc15) 
J$Coulomb excitation. |g(|q)(967|g,818|g) give J=2 


level_energy_unit: KEV
level_spin_parity: 0+
level_comment:
E$1994Mc03 report E=992 based on a weak 947|g assigned as the branch to the 45 level. 1967Di07 report E=993 based on E|g=948, and E=993 for an E0 transition to the g.s. Given E(level)=997.23 as determined by 2001Ga55, one gets E|g=952.3 for the transition to the 45 level. This transition would not be resolved from the 952 transition seen in |b{+-} decay, Coulomb excitation, and (n,n'|g), but assigned to the 997.6 {I3}- level. The 993 transition seen in the ce spectrum of 1967Di07 may correspond to the 992.3 E2+E0 transition from the 1037 {I2}+ level. 


level_energy_unit: KEV
level_spin_parity: 2+
level_comment:
$B(E2)=0.066 {I9} (1994Mc03), 0.063 {I9} (1974Mc15) B(E2) others: 0.037 {I15} (1981Al02); 0.048 {I11}(1974ThZG). These authors do not include the E0 component in the 992|g. 
B(E2)(888.9|g)/B(E2)(1037.3|g)=1.50 {I21} and B(E2)(992.3|g)/B(E2)(1037.3|g)<0.97 {I11} (1981Al02). 


level_energy_unit: KEV
level_spin_parity: 12+
level_lifetime_unit: PS
level_comment:
B(E2)(10+ to 12+)=5.1 {I5} (1981Gr10) 
T weighted average of 4.5 ps {I5} from B(E2) and 4.2 ps {I6} from DSA (1981Gr10) 


level_energy_unit: KEV
level_energy_info: ;ERR=?
level_spin_parity: (4+)
level_comment:
$Assigned by 1994Mc04 as the 4+ member of the K=2 |g-vibrational band; however, 1996Wa11 show that this band member has an energy of 1163 


level_energy_unit: KEV
level_spin_parity: 14+
level_lifetime_unit: PS
level_comment:
B(E2)(12+ to 14+)=5.1 {I5} (1981Gr10) 
T weighted average of 2.54 ps {I23} from B(E2) and 2.56 ps {I28} from DSA (1981Gr10) 


level_energy_unit: KEV
level_spin_parity: 16+
level_lifetime_unit: PS
level_comment:
B(E2)(14+ to 16+)=3.9 {I5} (1981Gr10) 
T weighted average of 2.05 ps {I27} from B(E2) and 1.66 ps {I14} from DSA (1981Gr10) 


level_energy_unit: KEV
level_spin_parity: 20+
level_lifetime_unit: PS
level_comment:
B(E2)(18+ to 20+)=4.4 {I7} from yield data (1981Gr10). 
T weighted average of 0.94 ps {I13} from B(E2) and 0.90 ps {I10} from DSA (1981Gr10) 


level_energy_unit: KEV
level_spin_parity: 22+
level_lifetime_unit: PS
level_comment:
B(E2)(20+ to 22+)=3.9 {I6} (1981Gr10) 
T weighted average of 0.82 ps {I13} from B(E2) and 0.69 ps {I15} from DSA (1981Gr10) 


level_energy_unit: KEV
level_energy_info: ;ERR=?
level_spin_parity: 24+
level_comment:
E$autors (1996Wa11) show 4356 on the level scheme, but the only transition from this level is a 452|g to the 3906 level 


level_energy_unit: KEV
level_energy_info: ;ERR=?
level_spin_parity: (25-)
level_comment:
E$authors(1996Wa11) give E=4417; however, the deexciting transition to the 3947 level has E|g=446, giving E(level)=4393. 


level_energy_unit: KEV
level_spin_parity: 5/2+
level_lifetime_unit: MIN
level_comment:
J from (n,|g) average resonance. 
T$weighted average of: 23.54 min {I5} (1943Mi10), 23.5 min {I7} (1947Fe05), 23.40 min {I5} (1969Hu21), 23.44 min {I2} (1989Ab05). 


level_energy_unit: KEV
level_spin_parity: (1/2)+
level_comment:
J 1/2+ or 3/2+ from 554.0|g M1 to 1/2+; band parameter syst suggests 1/2+ (see for example {+249}Cm,{+251}Cf) 


level_energy_unit: KEV
level_spin_parity: 0+
level_lifetime_unit: H
level_comment:
T$ from 1981Hs02. Others: 14 h {I2} (1948Hy61); 14.1 h {I2} (1953Kn23) 
$ %|a<10{+-10} (syst,1972El21), <10{+-16} (calculated,1997Mo25) 


level_energy_unit: KEV
level_comment:
$Confirmed identification of {+241}U nuclide from mass determination with measured mass excess=56182 keV {I45} (2023Ni04) 
$|b{+-} is expected to be the dominant decay mode of {+241}U, since the theoretical half-life for |a decay is >10{+20} s (2019Mo01), thus 100% |b{+-} decay is assigned by inference (evaluators). 
$Through the detection of {+241}Pu (T{-1/2}=14.29 y) and {+241}Am (T{-1/2}=432.6 y) in the debries of the thermonuclear test, abundance of {+241}U was deduced to be 0.039 {I5} relative to 1.000 {I4} for {+239}U (1960Di03). 
J$7/2+ from systematics (2021Ko07) and from theoretical considerations (2019Mo01) 
T$half-life has not been measured. From mass measurement in 2023Ni04, the half-life is >250 ms (200 ms transit time through the isotope separation system KISS, and 50 ms through the mass measurement system, as communicated by emails of April 12, 2023 from Dr. T. Niwase). Actual half-life is expected to be much longer as suggested by systematics: 4 min in 2021Ko07; and by theoretical calculations: 4.9|*10{+5} s (2021Mi17), >100 s (theory, 2019Mo01), |?6 s (2016Pa06). Note that the half-lives of neighboring neutron-rich isotopes are: 23.45 min for {+239}U, 14.1 h for {+240}U and 16.8 min for {+242}U (from NuDat3 and ENSDF databases at NNDC, BNL). 


level_energy_unit: KEV
level_uncertain: ?
level_comment:
$Through the detection of {+243}Am (T{-1/2}=7364 y) in the debries of the thermonuclear test, abundance of {+243}U was deduced to be 0.0021 {I4} relative to 1.000 {I4} for {+239}U (1960Di03) 
$|b{+-} is expected to be the dominant decay mode of {+243}U, since the theoretical half-life for |a decay is >10{+20} s (1997Mo25) 
J$9/2- from systematics (2012Au07) and theoretical considerations (1997Mo25) 
T$|b decay half-life=10 min (systematics,2012Au07), 245.5 s (theory,2003Mo09) 


level_energy_unit: KEV
level_spin_parity: (9/2-)
level_lifetime_unit: MS
level_comment:
$From theoretical |a and |b decay half-lives of 1.3 ms and 3.3 s, respectively, in 2019Mo01, primarily |a decay mode is expected, |b decay is expected to be negligible (|?0.04%). Proton decay is also possible from negative value of S(p) 
E$detected activity is assumed to correspond to the g.s. of {+219}Np 
J$tentative assignment based on predictions of large-scale shell-model calculations (2018Ya01) 
T$measured by 2018Ya01 from correlation time of 0.216 ms between evaporation residues and emission of |a particles from the Er, using maximum likelihood method for analysis. Others: 2015De22 mention that decay of the observed event must have occurred within a time smaller than the coincidence time of 5 |ms of the readout system; 1.3 ms for |a decay (theory, 2019Mo01) 
$In one correlated chain (2015De22), measured E|a=17.4 MeV (pileup of E|a from {+223}Am and {+219}Np decays) and T{-1/2}=5.2 ms {I+120-44} was followed by four correlated events: E|a>9 MeV (assigned to {+219}Np decay) with no half-life information; E|a=8.08 MeV {I2}, T{-1/2}=6.0 ms {I+138-50} (assigned to {+215}Pa decay); E|a=0.347 MeV, T{-1/2}=78 ms {I+179-64} (escape event assigned to {+211}Ac decay); E|a=0.625 MeV, T{-1/2}=1.7 s {I+39-14} (escape event assigned to {+207}Fr decay) 
$In one correlated chain (2018Ya01), measured E|a{-2}=8032 keV and mean lifetime of 27.9 ms for the daughter activity corresponds to {+214}Pa or {+215}Pa activities; E|a{-3}=7493 keV, and mean lifetime |t=378 ms for the grand-daughter decay corresponds to known E|a=7462 keV {I8}, T{-1/2}=350 ms {I40} for {+210}Ac decay or E|a=7477 keV {I6}, T{-1/2}=210 ms {I30} for {+211}Ac. By this reasoning, E{-|a}=9039 keV and mean lifetime of 0.216 ms corresponds to {+218}Np or {+219}Np, but as discussed above, based on Q(|a) and T{-1/2} systematics, assignment to {+219}Np is favored. 
$E|a=9039 keV {I40} (2018Ya01) from the decay of {+219}Np to {+215}Pa. Other: estimated E|a>9000 keV (2015De22) 
$Production |s=19 pb {I+44-16} (2018Ya01) at beam energy of 191.5 MeV, and with a transmission efficiency of 20% 


level_energy_unit: KEV
level_lifetime_unit: US
level_comment:
$Only |a decay has been detected. From theoretical T{-1/2}(|b)=2.5 s and T{-1/2}(|a)=4.9 |ms in 2019Mo01, only |a decay is expected. 
$Production |s=42 pb {I+20-15} (2019Zh23) for E({+40}Ar)=200 MeV at the center of target, uncertainty is statistical only. 
E$assumed that the observed |a activity is emanated from the decay of the ground state of {+220}Np, and feeds the g.s. of {+216}Pa 
J$1- from systematic trend (2017Au03). From |W(p)=7/2 and |W(n)=1/2 in theoretical calculations by 2019Mo01, J=(3,4) 
T$measured by 2019Zh23, from (Er)-|a-|a-|a-|a correlated decay chains, uncertainty is from analysis using maximum likelihood method. 
$Emitted E|a=10040 keV {I18} (2019Zh23), 15 keV systematic uncertainty is included. This transition feeds the g.s. of {+216}Pa 


level_energy_unit: KEV
level_lifetime_unit: US
level_comment:
$Only the |a decay mode has been observed. Decay mode of %|a|?100 is based on theoretical half-lives of 13.8 |ms for |a decay and 2.63 s for |b decay (2019Mo01) 
$E|a=10016 {I33} (2020Ma27), average |a energy deduced from EVR-|a correlated decay chains #2 to #6. Q(|a)=10200 {I34} for {+222}Np decay deduced from E|a value, nearly the same value as 10200 {I30} listed in 2021Wa16 (AME2020). 
$Deduced |a-reduced width in Rasmussen formalism |d{+2}=60 keV {I+40-20} (read from Fig. 6 in 2020Ma27) 
E$observed activity is assumed to correspond to the g.s. of {+222}Np 
J$2 or 5 from |W{-p}=7/2 and |W{-n}=3/2 (theory, 2019Mo01); 1- from systematics (2021Ko07) 
T$380 ns {I+260-110} (2020Ma27), average value deduced from EVR-|a correlated decay chains #2 to #6. 


level_energy_unit: KEV
level_spin_parity: (9/2-)
level_lifetime_unit: US
level_comment:
$Only |a decay has been detected. From theoretical T{-1/2}(|b)=4.4 s and T{-1/2}(|a)=18 ms in 2019Mo01, only |a decay is expected. 
$Production |s=0.9 nb {I+3-2} at E|?185 MeV (2017Su18) 
J$tentative assignment proposed by 2017Su18, based on reduced |a-decay width and large-scale shell-model calculations, while 7/2- is not excluded. 2017Su18 considered the scenario of J|p=7/2- for the g.s. of {+223}Np and its favored |a decay to a 7/2- excited state in {+219}Pa, expected at an energy of 350 keV from shell-model calculations, followed by a |g ray to the 9/2- g.s. of {+219}Pa, as direct |a decay from 7/2- g.s. {+223}Np to 9/2- g.s. of {+219}Pa will be hindered. Others: 9/2- (2017Au03, syst); 7/2 (2019Mo01, theory) 
T$measured as 2.15 |ms {I+100-52} by 2017Su18 from averaging the time differences between the {+223}Np implantations and |a decays. Authors noted that the half-life of {+223}Np was comparable to the time of flight (tof) in the SHANS recoil separator, and the effect of tof on the half-life was investigated with reference to measurements of half-lives (in |ms range) of {+219}Th, {+218}Ac and {+216}Ra in the present experiment. 
$E|a=9477 keV {I44} from the decay of {+223}Np was obtained from measured |a energy of 9976 keV {I37} for {+219}Pa decay in events #1 and #6 (see Table 1 in 2017Su18), and subtracting this energy from summed |a energy of 19453 {I23} obtained from the first five events for |a decays of {+223}Np and its daughter {+219}Pa. 
$Only in the first five events in Table 1 of 2017Su18, deposited |a-sum energies of {+223}Np and {+219}Pa were consistent within 50 keV of 19453 keV {I23}, suggesting that only one |a line (E|a=9477 keV) was emitted by {+223}Np 
$Deduced |a reduced width in Rasmussen formalism, (|d{+2})=0.17 MeV {I+8-4} (2017Su18), assuming the same J|p values for parent and daughter ground states. 


level_energy_unit: KEV
level_lifetime_unit: US
level_comment:
$Only |a decay has been detected. From theoretical T{-1/2}(|b)=5.4 s and T{-1/2}(|a)=2 ms in 2019Mo01, only |a decay is expected. 
$Production |s=0.38 nb {I+26-11} (2018Hu13), uncertainty is statistical only. 
E$assumed that the observed |a activity is emanated from the decay of the ground state of {+224}Np, and feeds two isomeric states in {+220}Pa 
J$2- from systematic trend (2021Ko07). From |W(p)=7/2 and |W(n)=5/2 in theoretical calculations by 2019Mo01, J=(1,6) 
T$measured by 2018Hu13, from (evaporation residues)|a-correlated decays 
$Emitted E|a=9137 keV {I20} with I|a=83 {I51}, and E|a=8868 keV {I62} with I|a=17 {I18} (2018Hu13), feeding excited states at 34 keV {I26} and 297 keV {I65} in {+220}Pa, respectively. Note that no decay branch to the g.s. of {+220}Pa is indicated by 2018Hu13. 


level_energy_unit: KEV
level_lifetime_unit: MS
level_comment:
$Evidence for only the |a decay mode in 1994Ye08 and 2015De22 
E$detected activity is assumed to correspond to the g.s. of {+225}Np 
J$9/2- proposed from systematic trend (2012Au07), 1/2 proton orbital in theoretical calculations (1997Mo25) 
T$from (reaction products)|a|a correlated events (2015De22); unweighted average of 3.3 ms {I+76-27} and 3.8 ms {I+76-27} 
$E|a=8630 keV {I20} from {+225}Np to {+221}Pa decay (1994Ye08); only one |a decay line is reported 


level_energy_unit: KEV
level_lifetime_unit: MS
level_comment:
Only |a decay branch was observed. By using the |b gross theory, 1973Ta30 calculated partial half-life for |e decay as |?90 s which suggests %|e+%|b{++}|?3|*10{+-3}. 
T T{-1/2}=31 ms {I8} was measured by 1990Ni05 and 58 ms {I+70-20} by 1995Le15; the weighted average of 31 ms {I8} and 58 ms {I20} is adopted. 


level_energy_unit: KEV
level_lifetime_unit: MS
level_comment:
T$from time correlations between Er and subsequent |a decays 
$Observed E|a=7990 {I20}, 8090 {I20}, 8180 {I20} 


level_energy_unit: KEV
level_lifetime_unit: S
level_comment:
T$from 1990Ni05. 
$%|e+%|b{++}|?0.7, theory (1997Mo25). 
$No spontaneous fission decay observed (1990Ni05). 
J$5/2- proposed from syst (2012Au07) 


level_energy_unit: KEV
level_lifetime_unit: S
level_comment:
Delayed fission probability =2.0|*10{+-4} {I9} per |e decay (1994Kr13) 
Other: %|a=83 {I+17-36} (2003Ni10) 
T from 1994Kr13 (measured delayed fission activity); others: 60 s {I5} (1966Ku13), 52 s {I8} (1978SoZZ), 56 s {I+45-17} (2003Ni10) 
%EC,%A From |e/|a=1.5 {I4} (1994Kr13) based on the measured ratio of {+212}Po/{+216}Fr activities. 


level_energy_unit: KEV
level_lifetime_unit: MIN
level_comment:
%|a from |a-|a following |a from {+229}Np and |a from {+225}Th which results from {+229}U decay following {+229}Np(|e) decay (2004Sa05); 70% {I10} (2000Sa52). %|a/%|e>1 was deduced by 1968Ha14 from absence of {+229}U |a groups in measured spectrum. 
T$from 1968Ha14; 4.0 min {I4} (2004Sa05) 


level_energy_unit: KEV
level_lifetime_unit: MIN
level_comment:
$%|e+%|b{++}|?97 is obtained if all of the observed {+230}U is assumed to be formed by |e decay of {+230}Np following its production in {+233}U(p,4n). Since {+230}U could also be produced by {+233}U(p,p3n), 97% branching for |e decay was given by 1968Ha14 as an upper limit. 
T$From 1968Ha14. 


level_energy_unit: KEV
level_spin_parity: (5/2-)
level_lifetime_unit: MIN
level_comment:
$%|a=2.0 if |a to g.s. of {+227}Pa is favored. Measurements of 1950Ma14 established the |a-decay mode, but only %|e/%|a<100 (implying %|a>1%) could be determined in their experiment. Systematics suggest %|a<10. Theoretical calculations of T{-1/2}(|b)>100 s and T{-1/2}(|a)=7.4|*10{+5}s (2019Mo01) suggest dominant |e+|b{++} decay mode. 
E$in {+235}Am |a decay, this level may be the ground state. However, 2004As12 set an upper limit of 15 keV for this level energy based upon detection efficiency for low-energy |g-rays and internal conversion coefficient of a corresponding E1 |g-ray transitions 
J$favored alpha decay from {+235}Am (J|p=5/2-), assuming that this alpha transition feeds the ground state. Likely configuration is |p5/2[523] (2004As12,2004Sa05). See {+235}Am |a decay. Other: 5/2+ from systematics (2021Ko07) 
T$from decay curves for 370.9- and 348.4-keV |g rays (1973We08). Other: 50 min {I3} (1950Ma14) from |a decay is in agreement. 


level_energy_unit: KEV
level_spin_parity: (5/2-)
level_comment:
E$this level is assigned as the ground state, although, the possibility of 6457|a feeding a low-lying level cannot be ruled out. 2004As12 set an upper limit of 15 keV for this level energy based upon detection efficiency for low-energy |g-rays and internal conversion coefficient for a corresponding E1 |g-ray transition. 


level_energy_unit: KEV
level_spin_parity: (4+)
level_lifetime_unit: MIN
level_comment:
T from 1970Ho27, 1972We16. Other: 1950Ma14 
J$From Nilsson orbital assignments in neighboring nuclei (1972El21). The 5/2[642] (or possibly the 5/2[523]) proton orbital is expected at low energy in {+232}Np. The same is true for the 5/2[633] and 3/2[631] (or possibly the 5/2[752]) neutron orbitals. The log| {Ift}=5.2 to the 1194.-keV (J|p=3+,4+) level in {+232}U suggests J=3 or 4, but configuration=p 5/2[642] + |n 3/2[631] for {+232}Np g.s. gives J|p=4+. An argument against this assignment is the observation of a 1194-keV |g ray, which deexcites the 1194-keV level to the g.s. (J|p=0+). However, it is possible that this 1194-keV |g ray may had been incorrectly placed in the level scheme. 
%A$From systematics (1997Mo25). 
J$from Nilsson assignments in neighboring nuclides (1972El21), we expect the 5/2[642] (or possibly the 5/2[523]) as the lowest proton orbit, and the 5/2[633], 3/2[631] (or possibly the 5/2[752]) as the lowest neutron orbit. log| {Ift}'s to {+232}U favor J=3 or J=4 for {+232}Np g.s.; thus, configuration=((|p 5/2[642])+(|n 3/2[631])), resulting in J|p=4+. If the 1193.9|g in {+232}Np |e decay is misplaced, then the 1193 level in {+232}U could be 4+; however, J|p=5+ is not expected for {+232}Np g.s. from the above listed Nilsson configurations, and 5- is very unlikely because log| {Ift}=5.17; this low log| {Ift} may be due to |p 5/2[642] |e decay to |n 5/2[633] (compare the analogous decays of {+233}Np and {+235}Pu). 


level_energy_unit: KEV
level_spin_parity: (1+)
level_uncertain: ?
level_comment:
J$from log| {Ift}|?5.3 in {+232}Pu |e decay. Possible configuration=((|p 5/2[642])-(|n 3/2[631])). 
E from nonobservation of gammas above 100 keV in {+232}Pu decay. 


level_energy_unit: KEV
level_spin_parity: (5/2+)
level_lifetime_unit: MIN
level_comment:
%A$|e(K)/(|a)=1.5|*10{+5} was obtained by 1950Ma14 from |a and L| x ray+K| x ray counts per minute. No |a decay was observed by 1958Le73 who set an upper limit of 0.003% 
J$analogy to other neptunium isotopes suggests |p5/2[642] state. 
T$measurement of 1973We08. Other measurement: 35 min {I3} (1950Ma14) 


level_energy_unit: KEV
level_spin_parity: (7/2+)
level_comment:
J$proposed by 1973Ja06 in {+233}Pu |e decay. Assignment should be considered tentative. It is also possible that this level corresponds to |? 50-keV level populated in {+237}Am |a decay and has the 5/2-, |p5/2[523] configuration. 


level_energy_unit: KEV
level_spin_parity: (0+)
level_lifetime_unit: D
level_comment:
%|a<0.01: not observed (no 4.4-d |a activity and no {+230}Pa growth in {+234}Np was observed (1949Hy04)). 
T$From 1955Pr29. Other values: 4.4 d (1949Os01), 4.40 d {I5} (1949Hy04). 
J |e decay to {+234}U suggests J|p=0+: |p 5/2[642], |n 5/2[633]. Analogy to neighboring nuclei. 


level_energy_unit: KEV
level_energy_info: ;OFF=X
level_comment:
E level is populated in {+238}Am |a decay. 
Possible configuration is J|p=1-: |p 5/2[523], |n 3/2[631]. 


level_energy_unit: KEV
level_energy_info: ;OFF=X
level_comment:
The level fed by the 5940-keV |a-particle group from {+238}Am may be the J|p=1-: p 5/2[523], n 3/2[631] state. A |g ray between this state and the g.s. (probable J|p=0+: |p 5/2[642], |n 5/2[633]) is forbidden. If a J|p=1+: p 5/2[642], n 3/2[631] state lay below the 1- level, then this 1- state would preferably deexcite by cascade |g rays. 


level_energy_unit: KEV
level_spin_parity: 5/2+
level_lifetime_unit: D
level_comment:
T$from 1970La08. Other values: 410 d {I10} (1952Ja01), 403 d (1958Gi05) 
$%|a from measurements of x-rays from {+235}Np and {+236}Np |e decay, and alpha particles from {+237}Np |a decay (1986AgZV). 
%|a=0.0035 {I4} from I|a/K| x ray+L| x ray (it is not clear whether this result had been corrected for M+ electron capture) (1956Ho46). %|a=0.0012 {I1} unpublished results (1957Th37). %|a=0.00159 from I|a/K| x ray+L| x ray, after correcting for |eM+/|eL=0.46 (1958Gi05). %|a|?0.002 from K| x ray/I|a (1984Wh02). 
J L(p,t)=0 


level_energy_unit: KEV
level_spin_parity: (5/2)-
level_lifetime_unit: NS
level_comment:
J$HF=1.4 for |a decay from (5/2)-, Nilsson band systematics (1972El21) 
T K| x ray-49|g(t) delayed coincidence in {+235}Pu |e decay (1971Go01) 


level_energy_unit: KEV
level_spin_parity: 6(-)
level_lifetime_unit: Y
level_comment:
%B-,%EC,%A,T$from T{-1/2}(|b{+-})=1.29|*10{+6} y {I1}, T{-1/2}(|e)=1.760|*10{+5} y {I4} and T{-1/2}(|a)=9.5|*10{+7} y {I25} (1981Li30). 
%B-$other: 13 % {I1} (1983Ah02) 
T$other: T{-1/2}(|b{+-})=1.29|*10{+6} y {I+7-5} (1972En06) 
%EC$other: 87% {I1} (1983Ah02). 
J$|e decay to 6+ level in {+236}U and |b{+-} decay to 6+ level in {+236}Pu; no |e decay and |b{+-} decay to 2+ or 0+ levels; large log {Ift} values suggesting large K-hinderance and possible configuration=((|p5/2[642])-(|n 7/2[743])) or ((|p 5/2[523])-(|n 7/2[743])) while Gallagher-Moszkowski rule favors ((|p5/2[642])-(|n 7/2[743])) with J|p=6- for lower energy (1981Li30). 


level_energy_unit: KEV
level_spin_parity: 1(-)
level_lifetime_unit: H
level_lifetime_info: ;ISO=M
level_comment:
%B-$weighted average of 57 {I5} (1956Gr11), 49 {I1} (1959Gi58) and 50 {I5} (1969Le05); other: 33 (1951Or02). 
%EC$from 1-%|b{+-} and no |a decay observed; others: 43 {I5} (1956Gr11), 51 {I8} (1959Gi58), 50 {I5} (1969Le05) and 67 (1951Or02). 
E$deduced from E(|b{+-},{+236}Np(22.5 h))=537 keV 8 (1969Le05) and Q(|b{+-},{+236}Np(g.s.))=480 keV 50 (2021Wa16). 
J$|e decay to 0+,2+ and 1- levels in {+236}U and |b{+-} decay to 0+ and 2+ levels in {+236}Pu; Gallagher-Moszkowski rule favors ((|p5/2[642])-(|n 7/2[743])) with J|p=1- for higher energy (1981Li30). 
T$from 1969Le05 and 1949Ja01. 


level_energy_unit: KEV
level_spin_parity: 5/2+
level_lifetime_unit: Y
level_comment:
J spin measured (see 1976Fu06, 1989Ra17 for references). Orbital assignment from J and |m. See 1972El21, 1976Ch22 and 1982Li02 for calculated |m values. 
T From 1992Lo03 (specific activity). Earlier measurements: 2.20|*10{+6} y {I11} (1949Ma01), 2.14|*10{+6} y {I1} (1960Br12). 
T{-1/2}(SF)|>1.|*10{+18} y (1961Dr04). 
1988Io05 and 1992Gr16 calculate T{-1/2}(SF) to be about 10{+18} y and 10{+14} y, respectively. Decay by pion emission was also studied and branching relative to spontaneous fission was calculated in 1988Io05. 
From nonobservation of any cluster decays, 1992Mo03 deduced that branching for ({+30}Mg or {+32}Si) decay/branching for |a decay<1.8|*10{+-14}. Similarly, 1985TrZY obtained (%cluster decay/%alpha decay)<8|*10{+-14}. 
Decays by heavy particle emissions have been studied and partial half-lives have been calculated by various groups by using various models. See, for example, 1984Po08, 1985Po12, 1985Pr01, 1986Ir01, 1986Po15, 1987Po08, 1987Sh04, 1988Bl11, 1988Iv02, 1989Bu06, 1989Si13, 1989Ma43, 1989Sh37, 1989Si13, 1990Ba20, 1990Bu09, 1990Sh01, 1992Gu10, 1993Go18 and 1993Gr15. 


level_energy_unit: KEV
level_spin_parity: 7/2+
level_lifetime_unit: PS
level_comment:
J 33.196|g M1+E2 to 5/2+ state; Coulomb excitation. 
T From Coulomb exitation using B(E2)=3.1 {I8} and adopted |g-properties. 


level_energy_unit: KEV
level_spin_parity: 5/2-
level_lifetime_unit: NS
level_comment:
See 1972El21, 1982Li02 for calculated |m values. 
J favored |a decay from {+241}Am. 
T From |a|g(t) in {+241}Am |a decay. T{-1/2}=63 ns {I5} was measured in {+237}U |b{+-} decay. 


level_energy_unit: KEV
level_spin_parity: 7/2-
level_lifetime_unit: PS
level_comment:
J 43.423|g M1+E2 to 5/2- state; |a hindrance factor; intensities of 69.76|g (E1) and 102.98|g E1 transitions to the 7/2+ and 5/2+ states, respectively. 
T From Doppler shift of ce(L3) 43.4|g (1965Wo02). 


level_energy_unit: KEV
level_spin_parity: 3/2-
level_lifetime_unit: NS
level_comment:
J 164.6|g E2 to 7/2- state; log| {Ift}=6.53 for the |b{+-} feeding from 1/2+ {+237}U parent. 
T From |b|g(t) (see {+237}U |b{+-} decay). 


level_energy_unit: KEV
level_spin_parity: 1/2-
level_comment:
J 13.81|g M1+E2 to 3/2- state, 221.80|g E2 to 5/2- state. Local trend of the 1/2[530] orbital and nonobservation of direct |a feeding are consistent with the assignment. 


level_energy_unit: KEV
level_spin_parity: 1/2+
level_lifetime_unit: NS
level_lifetime_info: ;ERR=LE
level_comment:
J 51.01|g and 64.83|g to 1/2- and 3/2- state are E1, 332.36|g E2 to 5/2+ state. 
T From |b|g(t) in {+237}U |b{+-} decay (1960Un01). 


level_energy_unit: KEV
level_spin_parity: 5/2+
level_comment:
J 335.37|g and 368.65|g to 7/2+ and 5/2+ states are M1+E2; intensities of |g's to the 5/2[642] band and the |a hindrance factor are consistent with the assignment. 


level_energy_unit: KEV
level_spin_parity: 13/2+
level_comment:
Uncertainty of the level energy is increased because of poor least-square fit of |g energies. 
J gammas to the 9/2+, 11/2+, 13/2+, and 15/2- states; level energy fit to the band. 


level_energy_unit: KEV
level_spin_parity: 11/2,13/2
level_lifetime_unit: US
level_comment:
J |g's to 9/2-, 15/2+ levels. 
T From {+238}U(p,2n|g) in 1990St29. 
See {+238}U(p,2n|g) section for the configurations proposed in 1990St29. 


level_energy_unit: KEV
level_lifetime_unit: NS
level_comment:
Only SF decay observed 
%SF/(%SF+%IT)=1.9|*10{+-3} was deduced in 1977Mi09 and 6.9|*10{+-4} in 1973Wo03 from analyses of delay-to-prompt fission cross-section ratios. 
E 2700 {I300} and 2850 {I400} were deduced in 1973Wo03 and 1977Mi09, respectively, from the delayed-to-prompt fission ratios in {+238}U(p,2n) reactions by using an evaporation model and the statistical model calculations. 
T 40 ns {I12} (1973Wo03), 45 ns {I5} (1977Mi09). 
See 1972We09, for example, for calculations of E(level), T{-1/2}(SF) and T{-1/2}(|g). 
For calculated fission-barrier parameters, see 1972We09, 1974Ba73, 1976Ga11, 1980Ku14, 1981Re06, 1984Ku05, 1990Bh02, 1993Oh03, for example. 


level_energy_unit: KEV
level_spin_parity: 3/2-
level_lifetime_unit: NS
level_comment:
T Weighted average of 5.2 ns {I5} (208|g(t) - 1957Bu42), 5.2 ns {I2} (208|g(t) - 1960Un01), and 5.0 ns {I2} (268|g(t) - 1960Un01). 


level_energy_unit: KEV
level_spin_parity: 5/2-
level_lifetime_unit: NS
level_comment:
T Weighted average is 67.2 ns 4 of data 63 ns {I5} (1952Be47), 64.2 ns {I20} (1968Ob02) , 66.7 ns {I7} (1971Ga16), 66.9 ns {I10} (1972Mc12), and 68.3 ns {I7} (1972Mi23) - uncertainty 0.7 (1%) is assigned by the evaluator, in 1972Mi23 0.2. The uncertainty 0.7 is the lowest expt. value. Other value: 63 ns (1964Sa31), 60 ns {I20} (1955Tu13). 


level_energy_unit: KEV
level_spin_parity: 7/2+
level_lifetime_unit: PS
level_comment:
B(E2)=4.5 +0.6-0.9 was deduced using |a(33.2|g)=273 in 1958Ne03. B(E2)=3.1 {I8} when it is corrected for the adopted value of |a=185 {I23}. 
T calculated by the evaluator from B(E2)=3.1 {I8}, |d(33|g)=0.13 {I3}, and |a=185 {I23}. 


level_energy_unit: KEV
level_spin_parity: 9/2+
level_lifetime_unit: PS
level_lifetime_info: ;ERR=AP
level_comment:
B(E2)=2.4 {I5} was deduced using |a(42.57|g)=119 {I+5-11} and |a(76|g)=57 (1958Ne03). The values of |a(42|g)|?80, |a(76|g)=53.4 have been used by the evaluator to recalculate B(E2)|?1.7. 
T calculated by the evaluator from B(E2)|?1.7, |a(75.8|g,[E2])= 53.4 and |a(42.73|g,[M1+E2])=80, and 75.8|g adopted properties. 


level_energy_unit: KEV
level_spin_parity: 11/2, 13/2
level_lifetime_unit: US
level_comment:
The authors of 1990St29 calculated Weisskopf hindrance factors for the transition deexciting the 945.3-keV level by assuming various multipolarities. From the systematics of transition probabilities and the expected orbitals, 1990St29 propose the following possible three-quasiparticle configurations: 
$ J|p=13/2+: p 5/2[642]+ p 5/2]523]+ p 3/2[521], 13/2-: p 5/2[642]+ p 5/2[523]+ p 3/2[651], 13/2-: p 5/2[642]+ p 7/2[633]+ p 1/2[530], 13/2+: p 5/2[642]+ p 7/2[633]+ p 1/2[400], 13/2-: p 5/2[642]+ n 7/2[743]+ n 1/2[631], 13/2+: p 5/2[642]+ n 7/2[642]+ n 1/2[631], 11/2-: p 11/2[505]. 
Among the three-quasiparticle configurations, the fifth and the first configurations in the list with J|p=13/2- and 13/2+ are favored by considering the expected excitation energies of the orbitals (1990St29). In addition to orbital energies, by assuming that the neutron pairing energy is smaller than the proton pairing, suggest that between these two configurations, the one proton+two neutron configuration with J|p=13/2- is more probable (1990St29). 
The authors of 1990St29 point out that the one-quasiparticle state, p 11/2[505] state, could not be excluded; however, this proton orbital has not been observed in any neighboring nuclei; therefore, the energy from systematics for this state is not available. 


level_energy_unit: KEV
level_energy_info: ;ERR=?
level_spin_parity: 5/2-
level_lifetime_unit: NS
level_comment:
T$The weighted average of 67.30 ns {I37}, 67.8 ns {I5}, 68.5 ns {I7}, 67.5 ns {I5} and 67.68 ns {I39} obtained fitting the time difference spectra between |a|g-coin measurements for each LYSO(Ce) detector in 2023Sa40. 


level_energy_unit: KEV
level_spin_parity: 2+
level_lifetime_unit: D
level_comment:
T$Weighted average of 2.1023 d 7, 2.1024 d 9, 2.1026 d 9 from (2006Re09), and 2.0980 d 3 (1990Ch35). Other values: 2.117 d 2 (1966Qa01), 2.10 d {i1} (1950Fr53). 


level_energy_unit: KEV
level_spin_parity: 0-
level_comment:
J$E2 to 2-. M2 to 2+. Not fed in (n,|g) from thermal, resonance, or average resonance capture; therefore, J not 1 to 4. Probable K|p=0- bandhead 


level_energy_unit: KEV
level_spin_parity: (6+)
level_comment:
J$probable band member. |g from 7+ 
E$no deexciting transitions assigned by authors. Their energy of 218.7 {I6} comes from feeding via a 170.5|g from the 389 level. On the basis of an energy fit, the evaluators suggest possible placement of a 52.98|g feeding the 5+ member of the assigned band at 165.59. This would give E(level)=218.57 {I8}. The (d,p) level at 221.2 {I8} is assigned by 1990Ho02 as being the same level 


level_energy_unit: KEV
level_spin_parity: 5-
level_comment:
J$probable band member. M1+E2 to 4-. Not seen in primary, average, or in resonance capture; therefore, J|p not 1- to 4- 


level_energy_unit: KEV
level_spin_parity: (2)-
level_comment:
J$possible band member. J|p=1- to 3- from average resonance capture and feeding from a 2+ resonance in (n,|g). (E1) to 3+ 


level_energy_unit: KEV
level_spin_parity: (6-)
level_comment:
J$probable band head. |g's to 4-, 5-, and 5+. Not seen in thermal, average resonance, or resonance capture; therefore J not 1 to 4 


level_energy_unit: KEV
level_spin_parity: 1- : 4-
level_comment:
E,J$1990Ho02 assign E=305.4 {I20} from their average resonance capture work, with J|p thus 1- to 4-. The evaluators note that a 218.56|g-126.21|g cascade from the 523.87 {I3}+,4+ level to the 179.150 4- level would yield E=305.34 {I3} for the intermediate level; however, mult(218.56|g) is M1+E2 so the resulting J|p(305) would be 3+ to 5+. The energy agreement may be fortuitous; however, one notes from fig. 3 of 1990Ho02 that the I|g/E|g{+5} value for the 305 level overlaps the calculated range for J|p=1+ to 4+ 


level_energy_unit: KEV
level_spin_parity: 6+
level_comment:
J$band member 
E$E=328.6 {I5} from (d,p). 1990Ho09 place the 163.25|g from this level; however, this transition is doubly placed, and all of the intensity can be accounted for by placement from the 342 level. The authors' coincidence work does not seem to require a component from this level. If a component of the 163|g does indeed deexcite this level, then E(level) can be established as 328.84 {I4} 


level_energy_unit: KEV
level_spin_parity: 1- : 3-
level_comment:
E$weighted average of 334.7 {I8} from arc and 333.4 {I7} from primary |g's in thermal and resonance capture. E=334.8 for a tentative level in |a decay 


level_energy_unit: KEV
level_spin_parity: 1 : 4
level_comment:
E$weighted average of 386.3 {I3} from primary |g's in thermal capture, and 386.2 {I5} in resonance capture 


level_energy_unit: KEV
level_spin_parity: (5)+
level_comment:
J$possible band member. Not populated in primary, average resonance, or in resonance capture; therefore J not 1 to 4.M1+E2 to 5+ 


level_energy_unit: KEV
level_spin_parity: 1- : 3-
level_comment:
E$weighted average of 457.37 {I24} from primary |g's in thermal and resonance capture, and 458.1 {I3} in arc 


level_energy_unit: KEV
level_spin_parity: 2-,3-,4-
level_comment:
J$M1+E2 to 3-. If the doubly placed 314|g has most of its intensity here, then its M1+E2 character to 2- rules out 4-. 


level_energy_unit: KEV
level_spin_parity: 1- : 4-
level_comment:
E$weighted average of 584.9 {I4} from average resonance capture, and 584.2 {I4} from primary |g in thermal capture 


level_energy_unit: KEV
level_spin_parity: 1- : 3-
level_comment:
E$weighted average of 601.1 {I4} from primary |g's in thermal and resonance capture, and 601.4 {I4} from arc 


level_energy_unit: KEV
level_spin_parity: 1- : 3-
level_comment:
E$weighted average of 649.0 {I6} from average resonance capture, 645.9 {I7} from primary |g's in thermal and resonance capture, and 648.7 {I5} from (d,p) 


level_energy_unit: KEV
level_spin_parity: 1- : 3-
level_comment:
E$weighted average of 673.7 {I3} from primary |g's in thermal and resonance capture, and 672.7 {I10} in arc 


level_energy_unit: KEV
level_spin_parity: 1- : 3-
level_comment:
E$weighted average of 691.9 {I6} from (d,p), 692.1 {I3} from arc, and 692.2 {I3} from primary |g's in thermal and resonance capture 


level_energy_unit: KEV
level_energy_info: ;ERR=?
level_lifetime_unit: NS
level_lifetime_info: ;ISO=M1
level_comment:
%SF: only SF activity was observed by 1970Vi05 
|g branch from a shape isomer with T{-1/2} between 2 |ms and 20 ms was searched for its decay by 1974Bo02 in {+238}U(p,n) reaction, and no |g could be assigned definitely. 
Upper limit on the isomeric ratio was found by 1976Vo04 by |g|g(t) in {+237}Np(thermal n) reaction for an isomer with T{-1/2}=70-200 ns. 
T measured by 1970Vi05 in {+237}Np(d,p), {+238}U(d,2n) 
No SF isomer was observed in {+237}Np(d,p) with 10 ns|<T{-1/2}|<1 |ms (1969La14). 
No SF isomer was observed in {+238}U(d,2n) with T{-1/2}>1 ns (1970Po01). 
T{-1/2} for fission was calculated as 52 s by 1972We09, and as 20000-2000 s by 1971Ba30. T{-1/2}(|g)=2.3 s was calculated also by 1972We09. 
E E(level)=2100 calculated by 1971Ba30, E(level)=2300 calculated by 1972We09, E(level)=2200 calculated by 1969Ni13. 


level_energy_unit: KEV
level_spin_parity: 2+
level_lifetime_unit: H
level_comment:
T$from weighted average of 984.6|g(t), 1026.0|g(t), and 1028.6|g(t) (2024Ta18). 
J$from the Adopted Levels of {+238}Np in the ENSDF database 


level_energy_unit: KEV
level_spin_parity: 5/2+
level_lifetime_unit: D
level_comment:
%|a|?1|*10{+-10} from |a syst (1980Sc26). 
J atomic beam (1969Fu11), E1 from 5/2- 
T$Weighted average (Limited Relative Statistical Weight Method) of 2.346 d {I4} (1956Wi25), 2.366 d {I3} (1959Co93), 2.340 d {I20} (1959Co63), 2.354 d {I8} (1966Qa01), 2.346 d {I4} (1969Bi12), and 2.3565 d {I4} (1990Ab06). (|h{+2}/|n=4.9, data are discrepant.) 


level_energy_unit: KEV
level_spin_parity: 5/2-
level_lifetime_unit: NS
level_comment:
J Favored |a decay (HF=1.14) from 5/2-5/2[523] in {+243}Am. 
T$From {+243}Am |a decay 
MOMM1$From 2011StZZ, 1967Gu08 Integral perturbed angular correlation. 
Compare to +1.95 {I15} for 5/2[523] in {+237}Np and +3.14 {I4} for 5/2[642] in {+237}Np. In {+243}Am the 5/2[523] g.s. has |m=+1.503 {I14} (2011StZZ,1990Iz01). 


level_energy_unit: KEV
level_spin_parity: (9/2+,7/2+)
level_comment:
J$9/2+ from ({+3}He,d). However, from |a HF and analogy to {+237}Np, this could be 7/2+ member of 1/2[400] 


level_energy_unit: KEV
level_spin_parity: 5/2-
level_lifetime_unit: NS
level_comment:
$g=0.79 {I10} from |a|g(|q,H,t) (1967Gu08). 
T$Weighted average of 1.2 ns {I1} (1960Un02), 1.40 ns {I6} (1963Ch07), 1.41 ns {I4} (1968Ob02), 1.38 ns {I3} (1969Hu09), and 1.41 ns {I4} (1970To08). 


level_energy_unit: KEV
level_spin_parity: 5/2
level_comment:
MOMM1,MOME2$from hfs measurement using {+237}Np as a reference (2024Ka23). 
J$from hyperfine spectroscopy measurement (2024Ka23) 


level_energy_unit: KEV
level_spin_parity: (5+)
level_lifetime_unit: MIN
level_comment:
J$ probable configuration=|p5/2[642]+|n5/2[622]; log| {Ift}=5.7 to (5-). 
T$ from 1982Pa23. Others: 60 min {I2} (1951Or08), 63 min {I2} (1960Le03), 67.0 min {I10} (1966Qa01); see also recommendation of 1986LoZT. Value from 1982Pa23 is adopted here as it has been determined from a large dataset of 60 decay curves for seven strong |g rays whose time decay was followed up to 14 hours. Value from 1966Qa01 is the longest amongst all the other measurements. It should that the value of 7.50 min from 1966Qa01 for the isomer is also the longest amongst three other measurements. It is possible that there there is some systematic deviation in the half-life data of 1966Qa01 


level_energy_unit: KEV
level_energy_info: ;OFF=X
level_spin_parity: (1+)
level_lifetime_unit: MIN
level_lifetime_info: ;ISO=M
level_comment:
E$ x=20 {I15} (1981Hs02,2003Au02); <18 keV from Q(|b{+-})(61.9 min)=2198 {I30} and Q(|b{+-})(7.22 min)=2180 {I20} 
J$ from strong |b transition to 0+ and 2+ members of ground-state band and the 1- member of K|p=0- band in {+240}Pu. Configuration=|p7/2[633]+|n7/2[624] (1981Hs02) 
T$ from 1981Hs02. Others: 7.3 min {I3} (1948Hy61), 7.3 min {I3} (1953Kn23), 7.50 min {I6} (1966Qa01). See half-life comment for the g.s. concerning value of 7.50 min from 1966Qa01 
$ %IT: fractional decay to the ground state was confirmed by observing growth and decay of 566.3|g, the strongest transition following decay of 61.9-min {+240}Np (1981Hs02). 1986LoZT adopted %IT=0.11 {I3} from an older Nuclear Data Sheets evaluation 


level_energy_unit: KEV
level_energy_info: ;OFF=X
level_spin_parity: (1+)
level_comment:
E LEVEL ENERGY HELD FIXED IN LEAST-SQUARES ADJUSTMENT 
E$ x=20 {I15} (1981Hs02,2003Au02) 
$ 1994VoZZ report observing influence of atomic surroundings on isomeric transition probability in {+240m}Np 


level_energy_unit: KEV
level_spin_parity: 5/2+
level_lifetime_unit: MIN
level_comment:
$%|a<1|*10{+-6} given by 1966Qa02, however no |a branch was observed in their study. Using the ALPHAD program, evaluator estimated %|a <1.7|*10{+-14} with the assumption HF |>4 for a non-favored transition 
T$From 1981Pa20. Others: 16.0 min {I2} (1966Qa02), 16 min (1960Le03,1959Va32) 
J${+235}Np, {+237}Np, and {+239}Np have the ground-state configuration 5/2[642]. The only other orbital lying within 100 keV of the g.s. configuration for these nuclides is the 5/2[523] orbital, which is the probable configuration for the {+243}Np g.s. Log{Ift} =5.87 {I9} for the branch to the 5/2[622] {+241}Pu g.s. rules out the negative-parity alternative 


level_energy_unit: KEV
level_spin_parity: (1+)
level_lifetime_unit: MIN
level_comment:
J$Analogy to lighter Np isotopes and analogy to {+243}Pu and {+245}Cm nuclei with 149 neutrons suggest |p5/2[642] and |n7/2[624] Nilsson states for the {+242}Np g.s. Log|{Ift} values for |b{+-} decays to low-spin levels in {+242}Pu are consistent with J|p=1{+}. The configuration |p5/2[642],|n7/2[624] was also proposed by 1979Ha26 
T$From 1979Ha26. 


level_energy_unit: KEV
level_spin_parity: (1,0)
level_uncertain: ?
level_comment:
J$|g transitions to (1+) and (1-,0-). Probable |b{+-} feeding from 0+. 1979Ha26 show (1-) on their level scheme. If J|p=1-, a possible configuration could be 1{+-}|p5/2[642],|n7/2[743]). The |g to g.s., assuming it is the 1{++}(|p/2[642],|n7/2[624]) state, would be allowed; however the |g to the 55.58 level, if it is the 1{+-}(|p5/2[523],|n7/2[624]) state, as 1979Ha26 proposed, would not be allowed without introducing considerable amount of configuration admixtures. If J|p=0+, the level could be the 0{++}(|p5/2[642],|n5/2[622]) state. |g transitions to the 1{++}(|p5/2[642],|n7/2[624]) g.s. and to the 55.58 level would be consistent with this configuration if the 55.58 level is either the 1{+-}(|p5/2[642],|n7/2[743]) or the 1{+-}(|p5/2[523],|n5/2[622]) state; however, it would be inconsistent if the 55.58 level has the 1{+-}(|p5/2[523],|n7/2[624]) configuration. For J|p=0+, the |b decay from {+242}U would be an isospin-forbidden transition. 


level_energy_unit: KEV
level_spin_parity: (1+,0+)
level_uncertain: ?
level_comment:
J$Log{Ift}=6.0 {I10} from 0+ suggests J|p=0 or 1. 1979Ha26 proposed the configuration |p5/2[523],|n7/2[743]1+ which would account for the feeding to the levels at 56 and 68 and the absence of direct feeding to the g.s., given the proposed configurations for these levels 


level_energy_unit: KEV
level_energy_info: ;OFF=X
level_spin_parity: (6+)
level_lifetime_unit: MIN
level_lifetime_info: ;ISO=M1
level_comment:
Assignment: {+244}Pu(30-160 MeV n,p2n); {+242}Pu(n,p) chem; activity was not observed in {+235}U(34-MeV |a,pxn) (1981Fr07). 
$ Only |b{+-} decay was observed. A possible isomeric transition was searched for by 1981Fr07 but was not observed 
J$Non-observation of |b transitions to low-spin states suggests spin higher than that of the 2.2-min state (J|p=(1+)). 1981Fr07 proposed the configuration |p5/2[642],|n7/2[624]6+ 
T$From 1981Fr07. 


level_energy_unit: KEV
level_spin_parity: (5/2)
level_lifetime_unit: MIN
level_comment:
J$J from systematics of lighter Np nuclei. |p=+ for the lighter Np nuclei however |p=- from possible ground state band assignment of 5/2[523] in {+244}Pu(pol t,|a) by 1979Fl02. 
T$from |g(t) in {+243}Np |b{+-} decay (1987Mo29). Preliminary result: 1.8 min {I3} (1986TeZY). 


level_energy_unit: KEV
level_comment:
$J=L-1/2 (1979Fl02). 
J$possibly 5/2- or 9/2- member of the 5/2[523] band (1979Fl02). Fit for J|p=3/2+ is best, but due to the poor statistics associated with the weak nature of the state, other J=L-1/2 possibilities were considered; the 5/2[523] orbital is favored by systematics 


level_energy_unit: KEV
level_energy_info: ;ERR=?
level_spin_parity: 1/2+,3/2-
level_comment:
J$possibly 1/2+ bandhead of the 1/2[400] orbital, or 3/2- member of the 1/2[530] band; another candidate for the 1/2+, 1/2[400] state is the 295-keV level (1979Fl02). 


level_energy_unit: KEV
level_spin_parity: (7-)
level_lifetime_unit: MIN
level_comment:
$Only |b- decay has been observed. 
T$Measured by 1987Mo29 from gamma intensities as a function of time delay between detectors. 
J$The 151st. neutron is probably in the 9/2[734] state. An extrapolation from the {+235,237,239,241}Np isotopes suggests that the 93rd. proton is in the 5/2[642] state. However, 2015GoZV on the basis of a three-step Two-Quasiparticle-Rotor-Model (TQRM), suggest that the 5/2[523] Nilsson orbital drops below the 5/2[642] orbital at N=150. In addition, the authors in 2015GoZV have also confirmed the possible proton 5/2[523] configuration for {+243}Np (2014Ne14). These configurations, 9/2-[734]|^~#5/2+[642]|^ or 9/2-[734]|^~#5/2-[523]|_ from the Gallagher-Moszkowski coupling rules, give J|p=7- or J|p=2+ for the g.s., respectively. Additionally, the observed beta decay (1987Mo29) to states in the daughter ({+244}Pu) with high spins suggests that the 2.29 min activity corresponds to a 7- state. However, if the 2+ g.s. state is correct, then the observed |b decay to high spin states suggests that the 7- is instead an isomer with 2.29 min half-life. The authors in 1987Mo29 have also indicated that the existence of a short-lived isomer in their {+244}Np |b{+-} decay studies cannot be ruled out 


level_energy_unit: KEV
level_uncertain: ?
level_comment:
E$Indirectly deduced from the detection of {+245}Cm (T{-1/2}=8423 y) in the debries of the thermonuclear test. 
$|b{+-} is expected to be the dominant decay mode of {+245}Np, since the theoretical half-life for |a decay is >10{+20} s (2019Mo01) 
T$|b decay half-life>100 s (theory,2019Mo01) 
J$1/2+ (theory,2019Mo01) 


level_energy_unit: KEV
level_spin_parity: 0+
level_lifetime_unit: S
level_comment:
%A T{-1/2}(|e)|?200 s calculated from gross |b{+-} decay theory (1973Ta30). This half-life predicts %|e<1.6. From theoretical T{-1/2}(|e)|47 s (1997Mo25) and T{-1/2}(|e)|?200 s %|e should be <7. 
T$ From |a-decay (2003Ni10) 


level_energy_unit: KEV
level_spin_parity: (3/2+)
level_lifetime_unit: MIN
level_comment:
T$from 1999La14 (|a-decay curve) 
J$assignment based on analogy with {+229}U g.s. (J{+|p}=(3/2+)). Alpha HF=1.8 to {+227}U g.s. (J{+|p}=(3/2+)) is consistent with J{+|p}=(3/2+) for {+231}Pu g.s. Possible configuration=|n3/2[631]. 


level_energy_unit: KEV
level_spin_parity: 0+
level_lifetime_unit: MIN
level_comment:
T$Weighted average of 33.1 min {I8} (2000La25), 34.1 min {I7} (1973Ja06), and 36 min {I2} (1952Or03). 
%A Calculated value (1997Mo25). Experimental values: %|a|<20 (1973Ja06), %|a|>1.6 (1952Or03). 


level_energy_unit: KEV
level_lifetime_unit: MIN
level_comment:
%A$(|a)/(|a+|e+|b{++})=0.0012 {I5} was determined from {+233}Np |a activity (1957Th10). 
J$in analogy with g.s. and a low-lying level in {+229}Th, 5/2[633] and 3/2[631] states are possible for g.s. Others: 5/2+ (syst,2017Au03); 5/2- from |W(neutron)=5/2- in theoretical calculations (2019Mo01) 
T$from 1973Ja06. Other measurement: 20 min {I2} (1957Th10). Theoretical half-lives (2019Mo01): >100 s for |b decay, 13.6 d for |a decay. 


level_energy_unit: KEV
level_spin_parity: 0+
level_lifetime_unit: H
level_comment:
Branchings were deduced from measured values of |a/|eK=0.09 and |eL/|eK=0.3 (1956Ho99). Other measurements: |e/|a>9 (1973Ja06). 
T 8.8 h {I1} (1973Ja06), 8.5 h {I10} (1949Pe04), 9.0 h {I5} (1952Or03). Early measurement: 1949Hy04. 


level_energy_unit: KEV
level_energy_info: ;ERR=LT;ERR=?
level_lifetime_unit: NS
level_lifetime_info: ;ERR=?
level_comment:
E Since this state is populated in {+234}Am |e decay, its energy must be less than Q(|e)=4180 keV 210 (2003Au03). Energies of spontaneously fissioning isomers in neighboring plutonium isotopes are in the range of 2000-3000 keV (see 1979Ew01). 
This level may be complex, and comprised of several levels in the second well of the nuclear potential. 
T From prompt coincidence data between fission products and plutonium K x-rays emitted in {+234}Am |e decay. 


level_energy_unit: KEV
level_energy_info: ;ERR=LT;ERR=?
level_lifetime_unit: NS
level_lifetime_info: ;ERR=LT
level_comment:
E the upper limit on the level energy is from Q(|e)=4180 keV. 
This level may be complex, comprised of several levels in the second well of the nuclear potential, and connected by the weak 112-, 147-, 168- and 185-keV |g-ray transitions. 
T plutonium K x-rays and the fission products reported in 1990Ha02 were observed in prompt coincidence, thus the inferred limits on the level's half-life of 1|*10{+-8} ns<T{-1/2}<3 ns. 


level_energy_unit: KEV
level_spin_parity: (5/2+)
level_lifetime_unit: MIN
level_comment:
T$weighted average of 25.6 min {I1} (1973Ja03), 25.9 min {I1} (1971Ke22), 24.3 min {I1} (1971Go01). Other values: 26 min {I2} (1957Th10), 25 min {I4} (1996Gu11), 26 min {I2} (1952Or03). Calculated T{-1/2}(SF): 1991Bh04, 2013BeZU 
J$log| {Ift}=5.4 to g.s. (J|p=5/2+) and log| {Ift}=5.5 to 34-keV level (J|p=(7/2+)) in {+235}Np from {+235}Pu |e decay. Systematics of Nilsson configuration assignments in this region suggests J|p=5/2+. 
%A$from T{-1/2}(|a)=1.7 y {I4} (1957Th10) and adopted T{-1/2}=25.3 min {I5}. 
J$Configuration=|n5/2[633] 


level_energy_unit: KEV
level_lifetime_unit: NS
level_lifetime_info: ;ISO=M1
level_comment:
E,T$from 1969Me11, 1970Bu02, 1972Ga42 T{-1/2}|?23 ns in {+233}U(|a,2n) and T{-1/2}=18 ns {I9} in {+234}U({+3}He,2n) (1978SoZP) 


level_energy_unit: KEV
level_spin_parity: 0+
level_lifetime_unit: Y
level_comment:
%SF$from T{-1/2}(SF)=1.5|*10{+9} y {I3} as unweighted average of 3.5|*10{+9} y {I10} (1952Gh27), 2.09|*10{+9} y {I6} (1988SeZY), 1.36|*10{+9} y {I20} (1990Og01,1995Hu21) and 1.13|*10{+9} y {I13} (1995Hu21). 
T$weighted average of 2.851 y {I8} (1957Ho66) and 2.866 y {I9} (1984Na30). Other value: 2.7 y {I3} (1949Ja01). 
${+236}Pu decay by {+28}Mg emission observed by 1995Hu21 (15 tracks), 1990Og01 (two {+28}Mg tracks). Partial T{-1/2}=1.06|*10{+14} y {I28} (1995Hu21), |?1.5|*10{+14} y (1990Og01). T{-1/2}({+28}Mg, Calculated)= 4.12|*10{+13} y (Cluster model,1994Bu07), 2.52|*10{+12} y (Effective liquid drop model, 1993Go18). 


level_energy_unit: KEV
level_spin_parity: 5-
level_lifetime_unit: US
level_lifetime_info: ;ISO=M
level_comment:
J$M1 |g to 5-; |g to 4+ and 6+; proposed as K-isomer with configuration=((|p 5/2[523])(|p 5/2[642])), K|p=5- (2005As01) 


level_energy_unit: KEV
level_energy_info: ;ERR=AP;ERR=?
level_spin_parity: (0+)
level_lifetime_unit: PS
level_comment:
J$ground state in the second potential well from syst of fission isomers (1974MeYP,1977Me08). 
E$from {+237}Np(p,2n) and {+234}U(|a,2n) (1974MeYP) 
T$from 1977Me08 using {+234}U(|a,2n) reaction; other: 40 ps {I15} (1974MeYP). 
$Q(intrinsic)=37 b {I+14-8} (1977Me08). 
%SF$no |g decay observed (1977Me08). 


level_energy_unit: KEV
level_lifetime_unit: NS
level_comment:
E,T$from {+237}Np(p,2n) (1969La14). 
J$not determined, possible two-quasi-particle K-isomer in the second potential well from syst of fission isomers (1977Me08). 
%SF$no |g decay observed (1969La14). 


level_energy_unit: KEV
level_spin_parity: 5-
level_comment:
J$from the consistency of the expected decay branches to the g.s. K|p=0+ band by Alaga rule and the measured values; proposed as the 5- member of the K|p=0- octupole vibrational band in {+236}Pu (2005As01). 


level_energy_unit: KEV
level_spin_parity: 5-
level_lifetime_unit: US
level_comment:
J$from M1 |g to 5- and log {Ift}=4.86 from 5- level; possible configuration (|p5/2[523]|p5/2[642]) with K|p=5-. 
T$from 2005As01 by K| x ray(|g)(t) coin analysis 


level_energy_unit: KEV
level_spin_parity: 7/2-
level_lifetime_unit: D
level_comment:
|a branching was calculated from |g intensities measured in |a and |e decays of {+237}Pu (1979El05) (see {+237}Pu |a decay). %|a=0.0033 {I3} was calculated from |a activities of {+237}Pu, {+236}Pu in a source with known fractions, and K x-ray counting (1957Th10). Other: a%=0.0020 {I4} in 1957Ho68. 
J 145.544|g from 1/2+ level is E3. |e decay to {+237}Np, |a decay of {+241}Cm, and (d,t) data are consistent with the assignment. 
T Weighted average of 44.66 d {I4} (1994Ta25), 45.63 d {I20} (1957Th10,1957Ho68), 45.3 d {I2} (1977Sm02), and 45.12 d {I3} (1981Ba15). 


level_energy_unit: KEV
level_spin_parity: 5/2+
level_comment:
J 45.724|g to 3/2+ is M1+E2, 55.638|g to 1/2+ state is (E2); (d,t), (p,t) and {+241}Cm |a decay data. 


level_energy_unit: KEV
level_spin_parity: 3/2+
level_comment:
J 224.86|g (M1) to 1/2+ state, it is not pure E2 or pure E1; therefore, J|p Ne 5/2, 1/2-, 3/2-; and J|p Ne 1/2+ from log| {Ift}=7.33 for |e branch in 5/2(-) {+237}Am |e decay. 


level_energy_unit: KEV
level_spin_parity: 5/2+
level_comment:
J M1+E2 |g transitions to 3/2+, 5/2+, 7/2+ states. Low |a hindrance factor is probably due to Coriolis interaction of the 3/2[631] band with the 5/2[633] and 1/2[631] bands. 


level_energy_unit: KEV
level_spin_parity: 7/2+
level_comment:
J 438.4|g E1 and 390.7|g E1 to 7/2- and 9/2- states, respectively , log| {Ift}=6.57 for |e branch from 5/2(-) {+237}Am |e decay rules out 9/2+. 


level_energy_unit: KEV
level_spin_parity: 7/2+
level_comment:
J 455.8|g M1 from 7/2+ state; log| {Ift}=7.53 for |e branch in 5/2(-) {+237}Am |e decay; fit to the rotational band. 


level_energy_unit: KEV
level_spin_parity: 7/2+
level_comment:
J 473.5, 425.8 |g's to 7/2-, 9/2- states are E1; log| {Ift}=6.7 for |e branch in {+237}Am |e decay. 


level_energy_unit: KEV
level_energy_info: ;ERR=?
level_comment:
This level, observed in (d,t) reaction, may be identical to the 655.3-keV, 5/2-, K=5/2 level observed in {+237}Am |e decay. See the comment on Nilsson assignment for the band based on 655.3-keV level. 


level_energy_unit: KEV
level_spin_parity: (5/2)-
level_comment:
J 655.3|g to 7/2- g.s. is M1; populated in {+237}Am |e decay. Energy difference from the 7/2- state at 696.2 keV (which yields A=5.8) suggests that these levels are members of a K=5/2 band. 


level_energy_unit: KEV
level_spin_parity: 7/2-
level_comment:
J 696.2, 648.5 gammas to 7/2-, 9/2- states are M1; log| {Ift}|<7.5 for |e branch from 5/2(-) {+237}Am |e decay. 


level_energy_unit: KEV
level_spin_parity: 7/2+
level_comment:
J 501.2 and 435.2 gammas to 5/2+ and 7/2+ states are M1, 861.2|g to 9/2- level. The 7/2[613] state assignment was proposed from {+237}Am |e decay (1975Ah05). 


level_energy_unit: KEV
level_spin_parity: 3/2+,5/2,7/2
level_comment:
J log| {Ift} of 7.13 for the |e branch from 5/2(-) {+237}Am and 1000.6|g to 7/2- state suggest J|p=3/2+, 5/2|+, or 7/2|+. 


level_energy_unit: KEV
level_lifetime_unit: NS
level_comment:
SF decay observed. Other decay mode not reported. 
E From 1978De07 (fit to excitation function)- |DE=200 by the evaluator. 2900 {I200} in 1971Br39 (fit to excitation function), 3400 {I200} from threshold energies (1970Bu02), 3100 {I150} from fit to excitation function (1973Va16), 2300 {I200} recommended in 1973Br38 from lowest threshold. 
T Weighted average of 77 ns {I16} (1979Gu03), 120 ns {I30} (1969VaZX), 60 ns {I20} (1969Me11,1971Re11), 120 ns {I50} (1970Bu02), 88 ns {I35} (1971Ru03), 114 ns {I12} (1971Te07), 100 ns {I50} and 120 ns {I50} (1971Br39), 130 ns {I20} (1972Vi10), 110 ns {I9} (1974Ba82), 110 ns {I30} (1969La14), 85 ns {I7} (1982Ra04). Other: 60 ns (1970Po01; reevaluated measurement of 1969La14), 70 ns (1972Ga42). 
For calculated level energy and T{-1/2}(level), see 1972We09, 1990Bh02. For calculations and evaluations of fission-barrier parameters see, for example, 1972We09, 1976Ga11, 1978Fl05, 1980Bj02, 1981Re06, 1984Ku05. 
g=-0.45 {I3} by perturbed angular distribution of fission fragments (1982Ra04, 1983Ra36). 
J for suggested spins and discussions, see 1971Ru03, 1972Vi10, 1973Va16, 1975Ha09, 1975Kh06, 1979Gu03, 1980Bj02, 1980Li15, 1982Ra04, 1984Du03. 


level_energy_unit: KEV
level_lifetime_unit: US
level_comment:
Only SF decay has been observed, it is not established whether the level decays by |g to the 85-ns SF isomer or by SF only, or both. 
E from fit to excitation functions, 1973Va16 deduced that 1.1-|ms isomer is 300|+150 keV above the 82-ns (97-ns in current evaluation) isomer. 
T Weighted average of 900 ns {I150} (1970Po01), 1120 ns {I80} (1971Ru03), 950 ns {I300} (1971Te07), 1000 ns {I200} (1972Vi10), 1310 ns {I260} (1974Ba82), 1050 ns {I400} (1979Gu03). 
Assignment: {+237}Np(d,2n) exit (1970Po01). 
g=+0.14 {I2} by time-dependent, perturbed angular distribution of fission fragments (1974Ka06). 
For suggested spins see 1979Gu03, 1984Du03, for example. 


level_energy_unit: KEV
level_spin_parity: 1/2+
level_lifetime_unit: S
level_lifetime_info: ;ISO=M
level_comment:
E From 145.536|g. E|a gives a value of 145.9 {I6}. 
J Favored |a transition (hindrance factor 2.6 {I3}) from {+241}Cm g.s. (J|p=1/2+) to this level (1975Ah05). 


level_energy_unit: KEV
level_spin_parity: 0+
level_lifetime_unit: Y
level_comment:
T{-1/2},%SF: recommended by 1986LoZT 
T$86.41 y {I30} specific activity {+238}Pu/{+242}Cm (1957Ho71), 87.77 y {I2} by calorimetry (1973JoYT), 86.98 y {I39} by specific activity (1976Po08), 87.71 y {I3} specific activity {+238}Pu/{+242}Cm (1977Di04), 87.98 y {I51} relative activity using T{-1/2}({+239}Pu)=24110 y (1981Ag06). 
T{-1/2}(SF)=4.77|*10{+10} y {I14} (1972Ha11), 4.63|*10{+10} y {I12} (1975GaZX), 5.1|*10{+10} y {I6} (1961Dr04). 


level_energy_unit: KEV
level_spin_parity: 2+
level_lifetime_unit: PS
level_comment:
J$E2 to g.s. 
T$weighted average of 177 ps {I5} from aga9ta0 in {+242}Cm |a decay, and 174 ps {I3} from B(E2) in Coulomb excitation. 


level_energy_unit: KEV
level_spin_parity: 1-
level_comment:
J$E1 to g.s.. The intensity ratio for the transitions to 0+ and 2+ agree with theory for K=0, not with K=1 


level_energy_unit: KEV
level_spin_parity: 1-
level_comment:
J$E1 to g.s.. The configuration was proposed by 1972Ah04 on the basis of log| {Ift} ratios in |e decay and energy calculations of 1964So02 


level_energy_unit: KEV
level_spin_parity: (2-)
level_lifetime_unit: NS
level_lifetime_info: ;ERR=LT
level_uncertain: ?
level_comment:
J$114.4|g from (4)- is probably E2. |g to 2+. 1972Wi22 propose K=2, J|p=2-. 
T$from delayed ce|g coincidence 


level_energy_unit: KEV
level_spin_parity: 2-
level_comment:
J$M1 to 3-. log| {Ift}=7.5 (log| {If{+1u}t}=8.2) from 1+ rules out 3- and 4- M1. The log ft for the |e feeding rules out J|p=3-,4-. 


level_energy_unit: KEV
level_spin_parity: 3+
level_comment:
J$M1+E2 |g's to 2+ and 4+ log ft for the |b{+-} feeding, photon intensity ratios, and band parameter suggest K=2, J|p=3+ 


level_energy_unit: KEV
level_spin_parity: (2+)
level_comment:
J from |g transitions to 0+, 2+ states J|p=1|+,2+. Intensity ratio is not in good agreement with Alaga rule for J=1, but it agrees well for J=2. 


level_energy_unit: KEV
level_spin_parity: 2+
level_comment:
J$E0+E2+M1 to 2+ energy spacing of the 1426 and 1458 levels and the ratio of ft's for the |e feedings to these levels suggest that they are members of a band 


level_energy_unit: KEV
level_spin_parity: (2+)
level_comment:
J$gammas to 0+, 2+, and possibly 4+. J=1 is not ruled out if the placement of 1450|g to 4+ is not correct 


level_energy_unit: KEV
level_spin_parity: 1-
level_comment:
J$E1 to 0+ E0+M1+E2 transitions with about equal intensity to K,J|p=0,1- and 1,1- states imply that the configuration of the 1621 state is probably a mixture of K=0 and K=1 


level_energy_unit: KEV
level_spin_parity: 1-
level_comment:
J$E1 to 0+ E0 transitions with about same intensity to K,J|p=0,1- and 1,1- states imply that the configuration of the 1636.6 state is a mixture of K=0 and K=1 


level_energy_unit: KEV
level_energy_info: ;ERR=AP;ERR=?
level_lifetime_unit: NS
level_lifetime_info: ;ISO=M1
level_comment:
%SF: only SF decay observed 
T 0.5 ns {I2} {+236}U(|a,2n) (1973Li01), 0.7 ns {I2} {+238}Pu(d,pn) (1974MeYP). 
1972We09 calculated T{-1/2}(SF)=0.95 ns, T{-1/2}(|g)=7.0 |ms 
E=2400 {I200} from thresholds (1973Li01). Calculated energies are: E=2250 (1972We09), E=2000 (1971Pa33), E=1800 (1972Ma11). 
Assignment: {+236}U(|a,2n) excit (1973Li01) 


level_energy_unit: KEV
level_energy_info: ;ERR=AP;ERR=?
level_spin_parity: (0+)
level_lifetime_unit: NS
level_lifetime_info: ;ISO=M2
level_comment:
%SF: only SF decay observed 
T 6.5 ns {I15} {+236}U(|a,2n) (1970Bu02,1971Br39), 5.0 ns {I20} {+236}U(|a,2n) (1973Li01). Other measurements: 1973Na35, 1969Me11 
E=3700 {I200} from {+236}U(|a,2n) thresholds (1973Li01), E=3400 {I400} estimated from excitation functions (1973Br38). 
Angular distribution of fission fragments following {+232}Th(|a,F) and {+236}U(a,2nf) reactions were measured, and possible spin assignments were proposed from measured anisotropy by 1974SpZS. See also 1975Kh06 for a discussion on spin of this isomeric state. 
Assignment: {+236}U(|a,2n) excit (1971Br39,1973Li01) 


level_energy_unit: KEV
level_energy_info: ;ERR=?
level_spin_parity: 2+
level_lifetime_unit: PS
level_comment:
T$from B(E2) and |a=775. This |a is the E2 theory value lowered by 3% (see 1987Ra01) 
$Other B(E2): 12.58 {I35} (1971Fo17) 


level_energy_unit: KEV
level_spin_parity: 1/2+
level_lifetime_unit: Y
level_comment:
Quadrupole deformation parameter deduced from splitting of giant-dipole resonance in photoabsorption |b(2)=0.29 {I3} (1976Gu15), |b(2)=0.245 (1986Be38) 
From muonic x-rays 1986Zu01 deduce |b(2)=0.2607 {I7}, |b(4)=0.0896 {I18} and Q=11.56 {I6}. 1978Cl03 deduce Q=11.66 {I11} 
From optical isotope shifts 1985Ge08 deduce Q=11.3 {I10} 
J Atomic beam (1969Fu11). 285|g E2 from 5/2+ at 285.4 keV. 
T$from 1986LoZT. 1990GlZZ recommend 24113 y {I40} with a confidence level of >99% (the standard deviation is 11 y). Others: 24060 y {I19}, specific |a activity (1975Al15); 24048 y {I25}, calorimetry, value corrected by 1977Ja08 (1970OeZZ); 24124 y {I14}, specific |a activity, and 24139 y {I14}, mass spectrometry (1977Ja08); 24164 y {I14} mass spectrometry (1978Ma45); 24101 y {I8} calorimetry (1978Se12); 24019 y {I21} specific |a activity, and 24089 y {I23} mass spectrometry (1978Pr07).  
T$T{-1/2}(SF)=8|*10{+15} y {I2}, value recommended in 2000Ho27. Other values: T{-1/2}(SF)=7.8|*10{+15} y {I16} (1985Dr09); T{-1/2}(SF)=5.5|*10{+15} y {I16} (1952Se67) (|DT{-1/2} is due to statistics only). 


level_energy_unit: KEV
level_spin_parity: 5/2+
level_lifetime_unit: PS
level_comment:
T$from Moss (1972Ga28). Others: |?0.2 ns from Coul. ex., 102 ps {I8} from B(E2)(1/2+ to 5/2+)=7.95 {I4} in muonic atom and adopted |g branching 


level_energy_unit: KEV
level_spin_parity: 5/2+
level_lifetime_unit: NS
level_comment:
MOMM1 from |b{+-} decay 
J$favored |a decay (HF=1.33) from {+243}Cm (J|p=5/2+). 
T from 1974Pa03. Other: 1951Gr34 


level_energy_unit: KEV
level_spin_parity: 7/2-
level_lifetime_unit: NS
level_comment:
J$61.5|g E1 to 7/2+, 106.1|g E1(+M2) to 5/2+. |a decay HF=130 is comparable to HF|?90 for the analogous transition in {+241}Pu |a decay; |g(|q) in {+239}Np |b{+-} decay. 
T from 1955En07. Other: 1974Pa03 


level_energy_unit: KEV
level_spin_parity: (5/2+)
level_lifetime_unit: US
level_lifetime_info: ;ISO=M1
level_comment:
J band parameter syst (see 1979Ba02) 
T$from 1977GoZH. Others: 8 |ms {I1} (1970Po01), 9 |ms {I1} (1973Na35), 8.1 |ms {I8} (1972Wo07), 11 |ms {I2} (1979Ba02), 6.5 |ms {I4} (1980Gu20). See also: 1971Ta17 
E from {+239}Pu(|g,n) (1972Ga04). E=2.7 MeV from {+238}U(|a,3n) (1971Br38,1972Wo07,1980Bj02). Others: 1970Bu02, 1974Ga41, 1973PoZA 
Upper limit on yield in COUL. EX. (1974Be52) 
Ratio of isomeric to prompt fission 7.9|*10{+-5} in {+240}Pu(|g,n) E(|g)|<45 MeV (1980Gu20) 
Mass distribution in fission of the isomer studied by 1977GoYZ 
Q of rotational band built on g.s. of second potential minimum studied by 1977Ha01. Q=36.5 {I25} assuming moment of inertia for the band 5% lower than the {+240}Pu case. K|>5/2 from decay time of high-charge states. Other: 1977GoZH 


level_energy_unit: KEV
level_energy_info: ;ERR=?
level_spin_parity: (9/2-)
level_lifetime_unit: NS
level_lifetime_info: ;ISO=M2
level_comment:
Assignment: {+238}U(|a,3n), ce-fission coin (1979Ba02) 
J$|g-ray deexcitation, Alaga ratios. Calculations suggest 9/2[734]. 
T from 1979Ba02. Others: 1977Ha01, 1980Gu20, 1977GoZH 


level_energy_unit: KEV
level_spin_parity: 1/2+
level_comment:
|b(2)=0.2607 {I7}, |b(4)=0.0896 {I18}, Q=11.56 {I6}, moment (E4)=0.0896 {I18} (1986Zu01). Other: Q=11.66 {I11}, moment (E4)=0.85 {I16} (1978Cl03). The analysis is model dependent, see 1986Zu01 for details. 


level_energy_unit: KEV
level_energy_info: ;ERR=?
level_spin_parity: 7/2-
level_lifetime_unit: NS
level_comment:
T$Only |g rays below 300 keV (in the liquid scintillator) in coincidence with |b{+-} were considered in the analysis. 


level_energy_unit: KEV
level_spin_parity: 0+
level_lifetime_unit: Y
level_comment:
$ <r{+2}>{+1/2}=5.84 fm {I4} (2004An14 evaluation) 
T$weighted average (using LWM method, normalized residuals and Rajeval's technique) of 6545 y {i19} (2007Ah05,|a counting and ratio of activities measured in growth of {+240}Pu in {+244}Cm source over 37.2 y interval, half-life of 18.11 y {i3} was used for {+244}Cm decay); 6574 y {i6} (1984Be19); 6571 y {i9} (1984St06); 6552.2 y {i20} (1984Lu04,uncertainty increased to 0.1%); 6552.4 y {i17} (1984Ru04; uncertainty increased to 0.1%); 6569 y {i6} (1978Ja11); 6524 y {I10} (1968Oe02, re-estimated as 6537 y {I15} in a 1986 evaluation report of a Coordinated Research Program (CRP) of the International Atomic Energy Agency (IAEA)). Others: 6620 y {I50} (1959Do64, re-estimated as 6610 y {I55} by 1978Ja11); 6600 y {I100} (1956Bu92); 6300 y {I600} (1954Fa11); 6760 y {I27} (1951Wa54); 6240 y {I120} (1951We21); 6580 y {I40} (1951In03, re-estimated as 6500 y {I45} by 1978Ja11). The uncertainty on the weighted average is 4 y, it has been increased to 0.1% as recommended by the 1986 CRP of IAEA for long half-lives. The DDEP evaluation (2006BeZL) gives the same value. 1989Ho24 evaluation gives 6560 y {i10} 
$T{-1/2}(SF)=1.15|*10{+11} y {I2}, weighted average (of first six values listed below) as adopted in the DDEP evaluation (2006BeZL); 2000Ho27 evaluation adopted 1.14|*10{+11} y {I1}. Original measurements: 1.15|*10{+11} y {I2} (1991Iv01); 1.12|*10{+11} y {i2} (1989Dy01); 1.17|*10{+11} y {I3} (1988SeZY); 1.15|*10{+11} y {i3} (1984An25); 1.15|*10{+11} y {i3} (1979BuZC); 1.176|*10{+11} y {i25} (1967Fi13); 1.27|*10{+11} y {I5} (priv. comm. to 1967Fi13); 1.45|*10{+11} y {i2} (1963Ma50); 1.340|*10{+11} y {i15} (1962Wa13); 1.20|*10{+11} y (1959Mi90,1954Ch74); 1.225|*10{+11} y {i30} (1954Ba14); 1.314|*10{+11} y {i26} (1953Ki72) 
$%{+34}Si decay mode: an upper limit was deduced based on an attempt to detect {+34}Si particles from {+240}Pu decay as described (p222) in an article by P.B. Price and S.W. Barwick in book: Particle Emission from Nuclei (editors: D.N. Poenaru and M.S. Ivascu), p255 (1989). From the same reference 2003Au02 quote %{+34}Si<1.3|*10{+-13}, which seems to be the value per decay. 


level_energy_unit: KEV
level_spin_parity: 2+
level_lifetime_unit: PS
level_comment:
J$ E2 |g to 0+ 
T$as adopted by 2001Ra27 from weighted average of following six values from different methods: 1. from B(E2) in Coul. ex.: 163 ps {I4} (1973Be44), 173 ps {I6} (1971Fo17), 168 ps {I6} (1965Fr11). 2. from |g|g(t) in {+244}Cm |a decay: 164 ps {I5} (1970To08), 173 ps {I15} (1960Be25). 3. recoil-distance Doppler-shift method in {+244}Cm |a decay: 160 ps {I20} (1964No01). 


level_energy_unit: KEV
level_spin_parity: (3+)
level_comment:
E$ from different set of |g rays observed in the two decays: 139.9, 147.2 and 175.4 |g rays in {+240}Np |b{+-} decay (61.9 min); and 1036.1 and 1135.1 |g rays in {+240}Am |e decay (50.8 h), it appears that two different levels may be populated near 1177 keV. It should be stated, however, that the gamma-ray placements do not seem to be firmly established in {+240}Np decay. 
J$ |g's to 2+ and 4+; band member. 


level_energy_unit: KEV
level_spin_parity: 0(-)
level_comment:
J$ |p=+ assumed by 1970Sc12 from an estimate of an upper limit of |a(K)exp<2.8|*10{+-2} for the 813.4|g. However, from {+239}Pu(n,|g) reaction (1975WeZA,1972OtZZ) J|p=0-. J=0 from |g|g(|q) in {+240}Np |b{+-} decay (7.22 min). 


level_energy_unit: KEV
level_spin_parity: 2(-)
level_comment:
J$ 1970Sc12 assumed that this level has J|p=2+ and is member of a two-phonon octupole vibrational band. However, from {+239}Pu(n,|g) reaction (1975WeZA,1972OtZZ) |p=-. J=2 from |g|g(|q) in {+240}Np |b{+-} decay (7.22 min). 


level_energy_unit: KEV
level_energy_info: ;OFF=X
level_spin_parity: (0+)
level_lifetime_unit: NS
level_lifetime_info: ;ISO=M
level_comment:
%SF Only SF decay observed. 
E$x=2250 {I200}, deduced from the level density of K|p=0+ bandheads in {+239}Pu(d,pF) (2001Hu12,2001Th16). Other: 2800 {I200} (estimate by 1971Br39,1970Bu02,1973Na03) 
$Fission isomer observed in {+238}U(|a,2n); {+239}Pu(n,|g) and {+239}Pu(d,p) 
T$weighted average of 3.8 ns +6-4 (1986De04); 3.5 ns 2 (1978Go10); 3.0 ns 5 (1973Li01); 2.4 ns 5 (1973Na03); 3.8 ns 3 (1971Br39,1970Bu02); 4.6 ns 6 (1970El03,1969El06), 4.4 ns 8 (1969VaZX); 7 ns {i2} (1969Me11); 9 ns {i4} (1969La14). Others: 1972Ga42, 1970Vi05, 1968Pa16 


level_energy_unit: KEV
level_spin_parity: (3-)
level_comment:
E$ level population proposed by the evaluators as a result of revised placement of 959.3|g according to the level scheme from the decay of 61.9-min {+240}Np 


level_energy_unit: KEV
level_energy_info: ;ERR=?
level_uncertain: ?
level_comment:
$ Population of this level in {+244}Cm |a decay is uncertain, thus no attempt has been made by the evaluators to deduce intensity of |a feeding and/or |g-ray intensities. It should be mentioned that in earlier evaluations (2006BeZL,2006Ch34,2004Ch64), this level was considered as populated in this decay based primarily on the 894.7|g quoted in 1978LeZA. But the reported intensity of this |g ray relative to that of the 937.6|g disagrees by at least a factor of 20 with branching ratio in 'adopted gammas', thus invalidating the assignment of the main intensity of the 894.7|g to {+244}Cm decay. 


level_energy_unit: KEV
level_energy_info: ;ERR=?
level_spin_parity: (2+,4+)
level_comment:
$RELATIVE=1.06 {I12} 
E,J$1223.0, (2+) and 1232.5, (4+) levels in 'adopted levels'. 1973Fr01 suggested 4+ 


level_energy_unit: KEV
level_spin_parity: 2+
level_lifetime_unit: PS
level_comment:
$ B(E2)=13.33 {I18} (1973Be44), 12.57 {I35} (1971Fo17), 12.9 {I3} (1965Fr11). 
T$ from 'adopted levels', includes values deduced from the measured B(E2) values given above. 


level_energy_unit: KEV
level_spin_parity: 0+
level_comment:
%SF$from counting of |a and SF events using active liquid scintillator (2018Be29) 
$2018Be29 derive T{-1/2}(SF)=1.132|x10{+11} y {I8} 


level_energy_unit: KEV
level_spin_parity: 5/2+
level_lifetime_unit: Y
level_comment:
$|m measured by optical spectroscopy (1969Ge04). Compiled by 2014StZZ 
MOMM1$Others: 1954Bl72, 1963Bl16. See 1982Li02 for theoretical |m calculations. 
$Q measured by optical spectroscopy (1964Ch10) and recommended by 2013StZZ. Compiled by 2014StZZ 
MOME2$Relative isotope shifts for plutonium isotopes were measured, and by using intrinsic Q values of even mass plutonium nuclei, intrinsic Q({+241}Pu) was deduced by 1985Ge08 as 11.5 {I5} which yields Q({+241}Pu)=4.11 {I18}. See 1982Li02 and 1983Ga20 for theoretical calculations of Q 
J$From paramagnetic resonance (1976Fu06 and 1968Ah01 and references therein). The measured magnetic moment indicates a 5/2[622] orbital assignments 
$|a/|b{+-}=2.45|*10{+-5} {I8} (1968Ah01), 2.45|*10{+-5} {I4} from I|g(148|g)=1.855 {I16} photons per 1|*10{+6} {+241}Pu decays, as measured by 1985Wi04, and I|g(148|g)=7.57 {I8} per 100 |a decays (1985El03). Others: 1950Th54, 1958BiZZ, 1960Br15, 1961Sm03, 1963Iv01, 1966Be24, 1976GuZN, 1978VaZC. % branching of |b, |a and SF from T{-1/2} and partial T{-1/2}(SF) |?6|*10{+16} y (1985Dr09) and T{-1/2}(|a)=5.8|*10{+5} y (1966Be24) 
T$From 2013Cr05 who reanalyzed the data of 2009We08 (thermal ionization mass spectrometry (TIMS) and double ratio method) to include assumptions from experimental uncertainties. The data of 2009We08 with t{-1/2}=14.325 y {I24} agrees well with the value by 2013Cr05 Others: 14.290 y {I6} (1997De54),14.355 y {I40} (1989Pa21), 14.57 y {I10} (1986Ti04), 14.38 y {I2} (double ratio method in 1985Ag02), 14.38 y {I6} (1980Ma45). For earlier measurements see 1978El02. See also 1987Ag03 for a compilation of measured half-lives. Discrepancies in the measurements were examined and explained by 1986Ha06 and 1987Ba84 in terms of chemical dependency of low-energy |b decay 
$T{-1/2}(SF)|?6|*10{+16} y measured by 1985Dr09. See 1992Gr16 for calculation of T{-1/2}(SF) using a thermodynamic method. 


level_energy_unit: KEV
level_spin_parity: 1/2+
level_lifetime_unit: US
level_comment:
J$Strongly fed by primary |g in (n,|g) from 1/2+ capture state. E2 |g to 5/2+. Energy fit to band 
T by pulsed beam-|g delay coincidence in {+242}Pu(d,t|g) reaction (1975Ya03). 


level_energy_unit: KEV
level_spin_parity: (9/2)-
level_comment:
J$E1 |g's to 7/2+ and 9/2+ from the 404 and 409 levels allow J|p=7/2- or 9/2- for both levels. 1998Wh01 assign these two levels as the 7/2- and 9/2- members of the 7/2[743] band whose 11/2 and 15/2 members have been established by reaction data at 446 and 570 keV. 1998Wh01 point out that the Alaga branching ratios predict that the strongest branch in decay of the 7/2[743] band head to the 5/2[622] band should be to the 5/2+ member of that band. This is the case in {+239}Pu; however, this transition is not observed here. 1998Wh01 suggest that Coriolis mixing with the unobserved, but expected, 9/2[734] band may depress the 9/2 member of the 7/2[743] band below the 7/2 member, in which case the transition to the 5/2+ g.s., if present, would be very weak 


level_energy_unit: KEV
level_comment:
J$Seen only in (d,d'). 1972Br46 suggest that this may be part of a rotational band built on a vibrational state 


level_energy_unit: KEV
level_spin_parity: 7/2-
level_comment:
J$E1+M2 |g's to 7/2+ and 9/2+. Agreement of branching ratios with Alaga rules for the assigned configuration. Also, probable E1+M2 |g to 5/2+ 


level_energy_unit: KEV
level_spin_parity: (1/2,3/2)
level_comment:
J$Average resonance capture to E(level)=1016. If different from the 1020 (d,p) level, then there is a (1/2,3/2) level at 1016 and a level at 1020 with unknown J|p 


level_energy_unit: KEV
level_spin_parity: 1/2,3/2
level_comment:
J$Fed by primary from 1/2+ capture state. The two deexciting transitions have mult=E1, but the 444|g feeds a 3/2- level and the 1053|g feeds a 3/2+ level. One or both of these transitions must belong elsewhere 


level_energy_unit: KEV
level_spin_parity: 1/2,3/2
level_comment:
J$Fed by primary from 1/2+ capture state. The two de-exciting transitions have mult=M1 or M1+E2, but the 516|g feeds a 1/2- level and the 603|g feeds a 1/2+ level. One or both of these transitions must belong elsewhere 


level_energy_unit: KEV
level_energy_info: ;ERR=AP;ERR=?
level_lifetime_unit: US
level_lifetime_info: ;ISO=M1
level_comment:
E LEVEL ENERGY HELD FIXED IN LEAST-SQUARES ADJUSTMENT 
Only SF decay has been observed. 
|G(|g)/|G(SF)<1 (no ce 161|g, 169|g observed) (1976BeZM) 
Theoretical calculations by 1972We09 estimate T{-1/2}(SF)/T{-1/2}(|g)=4.4|*10{+-6}/2.8|*10{+-4}. 
$No |a with E>7 MeV and T{-1/2}=10 |ms - 0.01 s was observed (1973Be05). 
T$From 1981Gu04. Others: 23 |ms {I1} (1970Ga10), 27 |ms {I3} (1970Po01) 
E$2.1 MeV (from spacings in neutron resonances, 1968Mi14), 2.90 MeV {I15} (from excitation threshold, 1970Ga10), 2.6 MeV {I3} (deduced by from data of 1970Ga10), 2.0 MeV {I2} (from neutron resonance structure, 1973Br38). See 1972We09 for calculated level energy. 
Assignment: {+242}Pu(|g,n) excit (1970Ga10); {+241}Pu(d,pn) excit; {+240}Pu(d,p) (1970Po01). 


level_energy_unit: KEV
level_energy_info: ;OFF=X;ERR=?
level_lifetime_unit: NS
level_lifetime_info: ;ISO=M2
level_comment:
E LEVEL ENERGY HELD FIXED IN LEAST-SQUARES ADJUSTMENT 
Only SF activity has been observed. 
T$Weighted mean from measured values of 30 ns {I5} (1969La14) and 34 ns {I7} (1981Gu04). 
E the value of 'x' is not known. It could be a negative number. Systematics of short-lived SF isomers in plutonium isotopes suggest that x |?100 keV. 
Assignment: {+240}Pu(13-MeV d,p) (1969La14); {+242}Pu(|g,n) (1981Gu04). 


level_energy_unit: KEV
level_energy_info: ;ERR=?
level_spin_parity: 1/2+
level_comment:
E$The feeding of this level has not been established. It cannot be directly fed by a |b branch, and no transitions feeding the level have been observed 


level_energy_unit: KEV
level_spin_parity: 1/2,3/2
level_comment:
E$The authors' uncertainty of 0.03 keV appears to be a misprint since the uncertainty in the primary transition is 0.05 keV 


level_energy_unit: KEV
level_spin_parity: 3/2-
level_comment:
E$The authors' uncertainty of 0.02 keV appears to be a misprint since the uncertainty in the primary transition is 0.04 keV 


level_energy_unit: KEV
level_comment:
E$The authors' uncertainty of 0.04 keV appears to be a misprint since the uncertainty in the primary transition is 0.05 keV 


level_energy_unit: KEV
level_spin_parity: 1/2+
level_uncertain: S
level_comment:
E$Neutron capture state. E=S(n)=5241.52 {I3} in 2012Wa38 
J$From s-wave n capture by the g.s of {+240}Pu with J|p=0+ 


level_energy_unit: KEV
level_spin_parity: 1/2+
level_lifetime_unit: US
level_comment:
T$From decay curve of the 1/2+[631] state 
BE2$Recalculated by evaluator using authors' T{-1/2} and |a=1.98 value of BrIcc (2008Ki07) 


level_energy_unit: KEV
level_spin_parity: 5/2+
level_comment:
J$Assignment considered tentative by the authors; however, it is confirmed in (d,p) and (d,t) where the peak is a doublet consisting of the 5/2+,3/2[631] and 7/2-,1/2[761] band members 


level_energy_unit: KEV
level_spin_parity: 9/2+
level_comment:
J$Assignment considered tentative by the authors; however, it is confirmed in (d,p) and (d,t) where the peak is a doublet consisting of the 9/2+,3/2[631] and 11/2-,1/2[761] band members 


level_energy_unit: KEV
level_spin_parity: 11/2+
level_comment:
J$Assignment considered tentative by the authors; however, it is confirmed in (d,p) and (d,t) in 1998Wh01 where the peak is a doublet consisting of the 11/2+,3/2[631] and 3/2-,1/2[501] band members 


level_energy_unit: KEV
level_spin_parity: 0+
level_lifetime_unit: Y
level_comment:
%SF$From the adopted values for T{-1/2}(|a) and T{-1/2}(SF). 
T$Based on the following set of measurements. Standards used by the authors are given in parens and their half-lives have been corrected by the evaluators for newer values of the standards as follows: T{-1/2}=87.7 y {I1} for {+238}Pu, 6561 y {I7} for {+240}Pu, and 24110 y {I30} for {+239}Pu. The following values are in units of 10{+5} y. T{-1/2}=3.65 {I5} ({+238}Pu) (1956Bu64), 3.79 {I5} (specific activity) (1956Bu92), 3.87 {I10} ({+240}Pu) (1956Me37), 3.82 {I3} ({+239}Pu) (1969Be06), 3.67 {I7} ({+238}Pu) (1970Du02), 3.702 {I7} (absolute 4|p |a|g coin and radiometry) (1976Bu23), 3.764 {I9} (low-temperature heat capacity) (1976Os05), 3.708 {I25} ({+239}Pu) (1978MeZL), 3.742 {I24} ({+239}Pu) (1979Ag03), 3.766 {I25} ({+238}Pu) (1979Ag03). The value of 1976Os05 was recalculated by the evaluators using E(|a)=4984.2 {I10}. The authors used 4982.3 {I12}. The value given by 1969Be06, 3.823 {I16}, has been revised by 1976Bu23. These data give a weighted average of 3.730|*10{+5} y {I12}. The evaluators adopt 3.73|*10{+5} y {I2} with the uncertainty increased to overlap the two values quoted to the highest precision. Others:1950Th54, 1956Hu96. 
$T{-1/2}(SF) is based on the following set of measurements, given in units of 10{+10} y. The evaluators have applied the same corrections for the T{-1/2} standards as given in the comment on T{-1/2}(|a): 6.65 {I10} (1956Bu64), 6.79 {I9} (1956Me37 as revised by 2000Ho27), 6.74 {I5} (1978MeZL), 6.86 {I26} (1988SeZY), 6.79 {I9} (2005ChZU) 6.74 {I9} (2013Sa65), 6.72 {I8} (2017Ma07), and 6.77 {I5} (2018Be29). The values given for 1956Me37 and 2017Ma07 are based on the adopted value for T{-1/2}(|a) and the authors' values of T{-1/2}(|a)/T{-1/2}(SF)= 1.819|*10{+5} {I18} and 1.802|*10{+5} {I18} respectively, These data give a weighted average of 6.748 {I28}. The evaluators adopt T{-1/2}(SF)=6.75|*10{+10} {I5} with the uncertainty increased to the smallest of the input values. Others: 6.7 {I7} (quoted in 1956Me37), 6.5 {I7} (1961Dr04), and 7.45 {I17} (1963Ma50). See also recommended value: 6.766 |*10{+10} y {I37} (2021Cr02) 
The intrinsic quadrupole and hexadecapole moments were deduced by 1986Zu01 as Q(0)=11.901 {I63} and H(0)=2.08 (12) from measured muonic X-ray data (muons were stopped on a {+242}Pu target.) From Coulomb excitation, 1973Be44 deduced Q(0)=11.64 {I9} and H(0)=1.75 {I+71-87}. From the intrinsic quadrupole and hexadecapole moments, the quadrupole and hexadecapole deformation parameters were obtained by 1986Zu01 as |b(2)=0.2766 {I15} and |b(4)=0.0498 {I52}. 
The relative isotope shifts between {+242}Pu and {+240}Pu, and between {+242}Pu and {+244}Pu were measured by 1985Ge08 to be 1.0 and 1.03 {I2}, respectively. See also 1989Ru07 
Energy distribution and yields of long range alpha particles emitted during spontaneous fission were measured by 1998Se17. 
Cold fission (without neutron emission) in {+242}Pu spontaneous fission was observed by 1996Da16. 
Energy and mass distributions of fission fragments were measured by 1982Al13, 1984Th01, 1989Wa29 and 1997De11. 
Energy and mass distribution of muon-induced fission fragments were measured by 1987Da22; time distribution of fission fragments from muonic {+242}Pu was measured by 1980Wi06; energy distribution of fission fragments induced by (t,p) reaction was measured by 1974Ba28, and fission probability was deduced. 
The prompt gamma-ray spectrum for spontaneous fission was measured by 2018Ch34 and 2016Ob01. The prompt gamma-ray spectrum for neutron-induced fission was measured by 2018Ch34. 
Fission fragments mass distribution was measured by 2017Hi10 populated in the excitation-energy range from 10 to 60 MeV by multinucleon transfer channels in the reaction {+18}O + {+238}U. 
|s and |s(E) for photo fission were measured by 2000So02. 
The absolute cross section for neutron-induced fission from 1 to 2.5 MeV was measured by 2017Ma07. 


level_energy_unit: KEV
level_spin_parity: 1-
level_comment:
J$From systematics of octupole-vibrational state energies. A ratio of reduced-transition rates of gammas to the g.s. band: B(E1,735.93|g)/B(E1,780.44|g)=2.25 observed in |b{+-} decay agrees with 2.0 from the Alaga rule 


level_energy_unit: KEV
level_spin_parity: (2+)
level_comment:
J$Spacing of 36 keV above the 956 {I0}+ state in (p,t) is suggestive of a rotational band. See 1970Ma29. 


level_energy_unit: KEV
level_spin_parity: (6+)
level_comment:
J gammas to 4+,6+. 1981Fr07 proposed J|p=6+ and configuration=(|n5/2[622],|n7/2[624]) similar to the 1040.3-keV level in {+244}Cm. 


level_energy_unit: KEV
level_uncertain: ?
level_comment:
J by analogy to the 1308.7-keV level in {+240}Pu, 1981Fr07 proposed a two-proton configuration of 5-(|p5/2[642],|p5/2[523]). Although this configuration is consistent with a beta branch from a 6+(|p5/2[642],|n7/2[624]) parent state, the gamma transition to a 6+(|n5/2[622],|n7/2[624]) state is not. Admixture with two-proton states with large amplitudes would be expected. 


level_energy_unit: KEV
level_spin_parity: (2-)
level_comment:
J$log {Ift}=7.3 from (1+). |g to 2+. No |g's to 0+. Analogy with 1438.5 level in {+240}Pu (1979Ha26). 


level_energy_unit: KEV
level_spin_parity: (1-)
level_comment:
J$|g's to 0+,2+. The ratio of reduced transition intensities of 1517.6 and 1473.1 gammas is in agreement with the Alaga rule for K=0, J|p=1-. 


level_energy_unit: KEV
level_energy_info: ;ERR=?
level_spin_parity: (3-)
level_comment:
J$Proposed by 1972El08 from (d,d') data. Assignment is uncertain 
$B(E3)=0.36 {I6} was extracted by 1972El08 from the (d,d') cross section. 


level_energy_unit: KEV
level_energy_info: ;ERR=CA;ERR=?
level_lifetime_unit: NS
level_lifetime_info: ;ISO=M1
level_comment:
%SF$Only SF decay observed. 
$Assignment: {+242}Pu(d,pn) excit 1974MeYP 
T$From 1974MeYP. See 1975Me28 for a review and systematics of fission isomer half-lives. 
$T{-1/2} for SF isomer was calculated by 1972We09 (3.7 ns), 1971Ba30 (30 ns). 1992Bh03 (3.5 ns). 
$T{-1/2} for |g emission was calculated by 1972We09 (3.4 |ms). See also 1974Ba28. 
E$Level energy has not been experimentally determined. The calculated energy of E|?2000 is given here as the level's expected approximate location. Energy of the lowest level in the second minimum of the double-humped nuclear potential was calculated by several authors using various methods: E=2.2 MeV (1970AlZT), 2.2 MeV (1971Ba30), 2.6 MeV (1971Pa33), 2.0 MeV (1972Ma11), 2.0 MeV (1972We09), 2.1 MeV (1992Bh03). 


level_energy_unit: KEV
level_energy_info: ;OFF=X;ERR=AP;ERR=?
level_lifetime_unit: NS
level_lifetime_info: ;ERR=?;ISO=M2
level_comment:
%SF$Only SF decay observed. 
T$T{-1/2}=50 ns {I30} was measured by 1969La14 in {+241}Pu(13-MeV d,p) reaction. This value was reevaluated by 1970Po01 as T{-1/2}=28 ns. 
E$From T{-1/2}-systematics of SF isomers in even Pu isotopes, 1975Me28 suggested that this isomer is a level lying higher than the 3.5-ns isomer in the second minimum of the double-humped nuclear potential. 


level_energy_unit: KEV
level_spin_parity: (2+)
level_comment:
J$Log{Ift}=4.9 for |b{+-} feeding from (1+) gives J|p=(0+,1+,2+). 1979Ha26 proposed a 2+ two-proton state with configuration (|p 5/2[642],|p 9/2[624]) 


level_energy_unit: KEV
level_spin_parity: (6+)
level_comment:
J$A two-neutron 6+,(|n 5/2[622],|n 7/2[624]) assignment was proposed by 1981Fr07 in analogy to the 1040.3-keV level in {+244}Cm 


level_energy_unit: KEV
level_uncertain: ?
level_comment:
J$1981Fr07 suggest that this level may be the lowest two-proton state with J|p=K|p=5- and configuration (|p [642],|p [523]) in analogy to the 1308 level in {+244}Pu 


level_energy_unit: KEV
level_spin_parity: 2+
level_lifetime_unit: PS
level_comment:
BE2$Other: 13.9 {I12} (1965Fr11) 
T$Calculated from B(E2)=13.47 {I18}, E|g=44.545 {I9} and |a=748 {I11} (adopted values of E|g and |a) 


level_energy_unit: KEV
level_spin_parity: 7/2+
level_lifetime_unit: H
level_comment:
T$weighted average of 4.955 h {I3} (1968Di09) and 4.958 h {I5} (1969Ho10). Other measurements: 1951Su55, 1951Th20, 1953En08, 1977Dr07. 
J$log| {Ift}|?6.1 to 5/2-. 402|g from 9/2- is E1 
$Intrinsic Q was estimated by 1985Ge08 as 11.6 {I5} from relative isotope shift, deduced from their measured isotope shifts for neighboring even Pu isotopes. 


level_energy_unit: KEV
level_spin_parity: 7/2+
level_comment:
J$feeds 7/2+, 9/2+ levels, fed from 3/2+ state; |a hindrance factor in {+247}Cm decay. (d,t) reaction data is in agreement with the assignment. 


level_energy_unit: KEV
level_spin_parity: (1/2+)
level_lifetime_unit: US
level_comment:
J$fed by primary |g in (n,|g); (d,p) and (d,t) reaction data. 
T$from d,|g(t) in {+242}Pu(d,p|g) reaction (1975Ya03). 


level_energy_unit: KEV
level_spin_parity: (1/2+)
level_comment:
J$intensity ratio of gammas to 1/2+[631] band. This level was obscured in (d,p) and (d,t) reactions by the 9/2+, 7/2[613] state. 


level_energy_unit: KEV
level_spin_parity: (5/2+)
level_comment:
J$(d,p) and (d,t) reaction data; fed by primary |g in (n,|g); probably decays to 7/2+ and (3/2+) states. 


level_energy_unit: KEV
level_spin_parity: (3/2-)
level_comment:
J$strong primary (n,|g) feeding and |g decay to the 5/2+,5/2[522] state suggest J|p=1/2+,3/2|+. Nonobservation of |g transition to any other state and weak population in (d,p) and (d,t) reactions imply that it might be a collective state built on the 5/2[622] state. 1976Ca25 propose that it is perhaps an octupole-vibrational state. 


level_energy_unit: KEV
level_spin_parity: 3/2+
level_comment:
J$fed by primary |g in (n,|g); feeds 7/2+, 5/2+ states. Level is tentatively assigned to 3/2+,3/2[622] state from data in (d,p) and (d,t) reactions. 


level_energy_unit: KEV
level_spin_parity: 1/2+,3/2
level_comment:
J$fed by strong primary |g in (n,|g); gammas to 5/2+, 3/2+ and 3/2- levels. J|p=3/2- is suggested by 1976Ca25. 


level_energy_unit: KEV
level_lifetime_unit: NS
level_comment:
E LEVEL ENERGY HELD FIXED IN LEAST-SQUARES ADJUSTMENT 
$No other decay observed. Delayed gammas from this isomer were searched for by 1974Br05 following {+242}Pu(n,F|g) reaction. No gammas were found from the isomer. 
$Assignment: {+242}Pu(d,p) (1969La14,1970Vi05). 
E$recommended by 1980Bj02. 
$1972We09 deduced E(level)=1.8 MeV from {+242}Pu(n,F) cross sections measured by 1971Au06; E(level)=3.2 +0.6-0.2 MeV and E(level)=3.6 MeV were deduced by 1969Ja01 and by 1971Be12, respectively, from average level spacings observed in their {+242}Pu(n,F) data. Theoretical calculations: E(level)=2.08 MeV (1972We09), 2.45 MeV (1990Bh02) 
T$from unweighted average of measured values of: 33 ns (1970Po01: reevaluated measurement of 1969La14) and 58 ns {I11} (1970Vi05). 
$1980Bj02=S.Bjornholm and J.E.Lynn, Rev.Mod.Phys. 52, 725 (80) 


level_energy_unit: KEV
level_spin_parity: 0+
level_lifetime_unit: Y
level_comment:
$%SF is deduced from the adopted T{-1/2}=8.13 |*10{+7} y {I3} and T{-1/2}(SF)=6.6 |*10{+10} y {I3}. 
T$From revised value of 8.12 |*10{+7} y {I3} (2006Ag15). Relative activity using thermal ionization mass spectrometry and |a spectrometry was used in the 2006Ag15 measurement. The method was an improvement from previous measurements due to better isotope fraction as well as more accurate determination of alpha activity ratios using {+240}Pu and {+242}Pu as reference nuclides. The evaluator has however, revised the value given originally by 2006Ag15 using values of T{-1/2}({+242}Pu)= 3.73 |*10{+7} y {I3} (from email reply of M. Martin on 14 May 2017), T{-1/2}({+240}Pu)= 6561 y {I7} (2008Si25), T{-1/2}({+239}Pu)= 24110 y {I29} (2014Br18), and T{-1/2}({+241}Pu) |a decay = 5.87 |*10{+5} y {I5} (deduced from T{-1/2}({+241}Pu)= 14.329 y {I29} (2015Ne16), and %|a=2.44 |*10{+-3} {I2} (2008BeZV) 
$Other T{-1/2}: 
$2011Ch65: 8.00 |*10{+7} y {I12} (recommended half-life based on measurements published from 1956-2006) 
$1989Ho24: 8.00 |*10{+7} y {I9} (weighted average of several compiled and revised values till 1969) 
$1969Be06: 8.28 |*10{+7} y {I10} (specific activity relative to {+239}Pu, measured with Si-Au surface barrier detector), 
$1966Fi07: 8.18 |*10{+7} y {I26} (specific activity relative to {+240}Pu and {+242}Pu, measured with Si surface barrier detector), 
$1956Bu92: 7.6 |*10{+7} y {I20} (specific activity of decay to {+240}U and {+240}Np, measured using end window Geiger Muller counter and proportional counter), 
$1956Di09: 7.6 |*10{+7} y {I20} (activity of {+240} Np decay, measured using Geiger-Mueller counters in anticoincidence with proportional counter). 
$T{-1/2}(SF)=6.6 |*10{+10} y {I3} from the weighted average of: 6.56 |*{+10} y {I30} (1983Mo02), 6.8 |*10{+10}y {I8} (1977Go03), and 6.67 |*10{+10} y {I32} (revised value of 1966Fi07 by 1989Ho24) 
$Other T{-1/2}(SF): 
$2000Ho27: Recommended half-life 6.6 |*10{+10} y {I2} 
$1980Kh05: 7.32 |*10{+10} y 
$1955Fi36: 2.5 |*10{+10} y {I8} 
$T{-1/2}(2 |b- decay) |> 1.1 |*10{+18} y (1992Mo25: detection of {+244}Cm alpha activity with |< 0.24 counts per day. %(2 |b-decay) |< 7 |*10{+-9} deduced from T{-1/2}(2 |b- decay) |> 1.1 |*10{+18} y and total half-life of T{-1/2}=8.13 |*10{+7} y {I3} 
$1998Se17, 1994Ve03: Observed emission of long-range alpha particles during spontaneous fission. The ratio of long-range alpha to fission rate was measured to be 2.62 |*10{+-3} {I25}, from which the light particle emission to binary fission probability ratio was deduced as 2.96 |*10{+-3} {I31} by 1994Ve03. Energy distribution and yields were measured by 1998Se17. 
$1985Ge08: Measured isotope shift relative to {+242}Pu as 1.03 {I2} 


level_energy_unit: KEV
level_spin_parity: 2+
level_lifetime_unit: PS
level_comment:
E LEVEL ENERGY HELD FIXED IN LEAST-SQUARES ADJUSTMENT 
E$Level energy is calculated from E|a=5034.89 keV to 2+ state, observed in {+248}Cm alpha decay. 
T$Calculated from B(E2)=13.61 {I18}, measured in Coulomb excitation with |a=7.8|*10{+2} {I4} (|a calculated from BrICC) 


level_energy_unit: KEV
level_spin_parity: 4+
level_comment:
E LEVEL ENERGY HELD FIXED IN LEAST-SQUARES ADJUSTMENT 
E$Level energy is calculated from E|a=4930.37 keV to 4+ state, observed in {+248}Cm alpha decay. 
$B(E4) was deduced in Coulomb excitation. 
J$From Coulomb excitation and (d,d') data. 


level_energy_unit: KEV
level_spin_parity: (5-)
level_comment:
E$1068-keV level was doublet in (d,d') spectrum; 1975Th11 suggested that one level of the doublet may be the 5- member of a K=2- octupole-vibrational band. 


level_energy_unit: KEV
level_spin_parity: 8-
level_lifetime_unit: S
level_lifetime_info: ;ISO=M
level_comment:
J$From measurements of in-band M1/E2 branching ratios in {+244}Pu({+208}Pb,{+208}Pb'|g) deep inelastic reaction that was used to extract g{-k}-g{-R}/Q{-0}| values that verifies the assignment. In addition, systematics show a similar excitation energy and decay pattern of N=150 isotones with even Z for {+246}Cm (2008Ro21), {+248}Cf (2014Ma86),{+250}Fm (2008Gr17) and {+252}No (2008Ro21) 
T$From decay curve measurements in {+244}Pu({+47}Ti,{+47}Ti'|g) (2016Ho13) 


level_energy_unit: KEV
level_energy_info: ;ERR=AP;ERR=?
level_lifetime_unit: PS
level_lifetime_info: ;ISO=M1
level_comment:
E$The shape isomer's energy was deduced as 2.43 MeV {I+30-26} by 1971Au06 from intermediate structure observed in neutron-induced fission cross sections. Calculations of 1971Pa33, 1972Mo27, and 1992Bh03, 2013Gi06, yield E(level)= 3.2, 3.5, |? 2.4 MeV, and 2.47 respectively. 
T$Measured from decay of fission isomer observed in {+244}Pu(d,pn). Theoretical calculations: T{-1/2}(SF)=137 ps (2005Re16) 
$1974MeYP. See 1975Me28 for systematics of SF isomer half-lives 
$1974Ba28: Fission probability distributions were measured following {+242}Pu(15-MeV t,pF) reaction, and the heights and curvatures of the two peaks in the fission barrier were deduced 


level_energy_unit: KEV
level_spin_parity: (2+)
level_comment:
$B(E2)=0.30 {I10} 
J$Assignment is uncertain, could possibly be a 3- with B(E3)=0.26 (1975Th11). However a comparison of the reduced transition probability with values from Coulomb Excitation measurement (1974Mc15): B(E3)=1.16 {I12} if J|p=3-; B(E2)=0.195 {I18}, if J|p=2+ makes it a possible 2+ rather than a 3- 


level_energy_unit: KEV
level_spin_parity: 2+
level_lifetime_unit: PS
level_comment:
E LEVEL ENERGY HELD FIXED IN LEAST-SQUARES ADJUSTMENT 
E$From Adopted Levels 
$Other measurement: B(E2)=13.83 {I37} (1971Fo17). 
$Quadrupole moment was obtained from B(E2) measurements: Q(20)=11.79 {I16} (1971Fo17) 
T$From B(E2) for |a=7.8|*10{+2} {I3} (|a calculated from BrICC) 


level_energy_unit: KEV
level_spin_parity: 3-
level_comment:
E$From 1974Mc15 
$B(E3)=0.37 {I7}, if J|p=3-. However, if J|p=2+, then B(E2)=0.059 {I13} (1974Mc15) 


level_energy_unit: KEV
level_spin_parity: (2+)
level_comment:
E$From 1974Mc15. 
$B(E2)=0.195 {I18} if J|p=2+; However if J|p=3-, then B(E3)=1.16 {I12} (1974Mc15) 


level_energy_unit: KEV
level_spin_parity: 8-
level_lifetime_unit: S
level_lifetime_info: ;ISO=M
level_comment:
T$From decay curve (2016Ho13) 
J$From systematics with a similar excitation energy and decay pattern of previously observed 2-quasineutron 8- isomer in heavier N=150 isotones {+246}Cm, {+250}Fm, and {+252}No (2016Ho13, 2011ChZZ) 


level_energy_unit: KEV
level_spin_parity: 8-
level_lifetime_unit: S
level_lifetime_info: ;ISO=M
level_comment:
E$Indicated as 1216 keV in Fig. 2 (2016Ho13) 
T$From {+244}Pu({+47}Ti,{+47}Ti'|g) (2016Ho13) 
$|n9/2-[734]~#|n7/2+[624] configuration confirmed by measurements of in-band M1/E2 branching ratios that were used to extract g{-k}-g{-R}/Q{-0}| values where g{-k} is the nucleon g factor, g{-R} is the rotational g factor and Q{-0} is the intrinsic quadrupole moment. The value deduced compared with expected values for specific configurations favors the two-quasineutron assignment (2016Ho13). The K-quantum number was also examined from the reduced hindrance factor ({If{-v}}=177) that was deduced from the measured intensities 
J$From systematics with a similar excitation energy and decay pattern of previously observed two-quasineutron 8- isomers in heavier N=150 isotones {+246}Cm, {+250}Fm, and {+252}No (2016Ho13) 


level_energy_unit: KEV
level_spin_parity: (9/2-)
level_lifetime_unit: H
level_comment:
T$From unweighted average of 10.59 h {I2} (decay, 1967Bu09) and 10.48 h {I5} (decay, 1968Da02). Value is recommended by 1986LoZT. Others: 10.1 h {I5} (from successive separation of its daughter {+245}Am, 1955Fi37), 10.6 h {I4} (from chemically separated daughter, {+245}Am, 1956Bu92), 10.4 h {I2} (from daughter {+245}Am, 1968Da02) 
J$From systematics of nuclei with 151 neutrons ({+247}Cm, {+249}Cf, {+251}Fm) and from macroscopic-microscopic model calculation (2011As03) 
$Only |b{+-} decay was observed. 


level_energy_unit: KEV
level_spin_parity: (7/2+)
level_comment:
J$D 75.0|g to (7/2+) 194-keV level, D to (9/2-) g.s level and the energy spacing between the 331.2 and 269.1 keV level is consistent with that of the members of the 7/2[613] with energy difference of 57.61 keV in the ENDSF database for {+249}Cf (2011Ab07) 


level_energy_unit: KEV
level_spin_parity: (1/2+)
level_lifetime_unit: US
level_lifetime_info: ;ISO=M
level_comment:
E LEVEL ENERGY HELD FIXED IN LEAST-SQUARES ADJUSTMENT 
J$From systematics of neutron single levels for N=151 isotones (2007Ma82,2011As03) 
T$From |g(t) in {+244}Pu({+18}O,{+17}O|g) (2007Ma82) 


level_energy_unit: KEV
level_spin_parity: (3/2+)
level_comment:
J$(D) 315.3|g to (5/2+) 264.5-keV level and from systematics of neutron single levels for N=151 isotones (2007Ma82) 


level_energy_unit: KEV
level_lifetime_unit: NS
level_comment:
$Only SF decay was observed. T{-1/2}(|g)/T{-1/2}(SF)=1.08 was calculated by 1972We09. See also compilation by 2002Si26 and 2015Ja04. 
E$Systematics of SF isomers in lighter odd-A Pu E(level)=1.8 MeV; 2.3 MeV was deduced by 1972We09 from {+244}Pu(n,F) data of 1971Au06. Level energy=1.87 MeV calculated by 1972We09, 2.43 MeV by 1990Bh02 
T$Experimental value recommended in 1990Bh02 (reference not given). See 1972We09, 1980Ku14, and 1990Bh02 for calculated T{-1/2}(SF). 


level_energy_unit: KEV
level_spin_parity: 9/2+
level_comment:
E LEVEL ENERGY HELD FIXED IN LEAST-SQUARES ADJUSTMENT 
E$No known |g rays from this level. Energy is from {+244}Pu(d,p) dataset 


level_energy_unit: KEV
level_spin_parity: 0+
level_lifetime_unit: D
level_comment:
T$Weighted average of 10.85 d {I2} (1956Ho23) and 10.78 d {I5} (1983Po14,1983Po16). Other: 11.2 d {I2} (1955En16). 


level_energy_unit: KEV
level_spin_parity: 2+
level_comment:
E LEVEL ENERGY HELD FIXED IN LEAST-SQUARES ADJUSTMENT 
E$Other: 46.7 {I2} from a fit of kinetic moment of inertia to rotational frequencies in ({+18}O,{+16}O|g) (2007Ma82) 
T$Predicted from systematics: T{-1/2}=170 ps (1992Ro02) 


level_energy_unit: KEV
level_energy_info: ;ERR=CA;ERR=?
level_spin_parity: 2+
level_uncertain: S
level_comment:
E LEVEL ENERGY HELD FIXED IN LEAST-SQUARES ADJUSTMENT 
E$From a fit of kinetic moment of inertia to rotational frequencies (2007Ma82) 


level_energy_unit: KEV
level_spin_parity: (1/2+)
level_lifetime_unit: D
level_comment:
$|b{+-} decay has been inferred through {+247}Am activity. Direct |b{+-} decay scheme of {+247}Pu to {+247}Am was not studied. 
T$Measured by 1983Po14 (see also 1983Po16) from the increase in the intensity of the 226- and 285-keV |g's in {+247}Am |b{+-} decay. 
J$In analogy to {+249}Cm, {+251}Cf and {+253}Fm isotones, J|p(g.s.) is probably 1/2+ of the 1/2[620] orbital. 


level_energy_unit: KEV
level_lifetime_unit: MS
level_comment:
$From theoretical |a and |b decay half-lives of 9 ns and 0.67 s, respectively in 1997Mo25, |b decay is expected to be negligible 
E$detected activity is assumed to correspond to the g.s. of {+223}Am 
T$5.2 ms {I+120-44} from measured correlation times of |a-decay and reaction products (2015De22) 
J$3/2 proton orbital in theoretical calculations (1997Mo25) 
$In one correlated chain (2015De22), measured E|a=17.4 MeV (pileup of E|a from {+223}Am and {+219}Np decays) and T{-1/2}=5.2 ms {I+120-44} was followed by four correlated events: E|a>9 MeV (assigned to {+219}Np decay); E|a=8.08 MeV {I2}, T{-1/2}=6.0 ms {I+138-50} (assigned to {+215}Pa decay); E|a=0.347 MeV, T{-1/2}=78 ms {I+179-64} (escape event assigned to {+211}Ac decay); E|a=0.625 MeV, T{-1/2}=1.7 s {I+39-14} (escape event assigned to {+207}Fr decay) 


level_energy_unit: KEV
level_lifetime_unit: S
level_comment:
$From theoretical |a and |b decay half-lives of 2.3 s and 24 s, respectively in 1997Mo25, |e+|b{++} decay is expected to be |?9% 
E$detected activity is assumed to correspond to the g.s. of {+229}Am 
J$5/2- proton orbital in theoretical calculations (1997Mo25) 
T$from measured correlation times of |a-decay and reaction products (2015De22). Other: 6.4 s {I+149-54} from the chain starting with the decay of {+233}Bk (2015De22) 
$In one correlated chain (2015De22) starting with {+229}Am, measured E|a=7.99 MeV {I2} and T{-1/2}=0.9 s {I+21-7} was followed by two correlated events: E|a=16.4 MeV, T{-1/2}=3.3 ms {I+76-27} (pileup event from {+225}Np and {+221}Pa decays); E|a=4.10 MeV, T{-1/2}=16 s {I+37-13} (escape event assigned to {+213}Fr decay). No event was seen from {+217}Ac, possibly due to its short half-life 
$In a second correlated chain (2015De22) starting with {+233}Bk, measured E|a=7.77 MeV {I2} and T{-1/2}=21 s {I+48-17} was followed by three correlated events: E|a=8.00 MeV {I2}, T{-1/2}=6.4 ms {I+149-54} assigned to {+229}Am decay); E|a=16.6 MeV, T{-1/2}=3.8 ms {I+76-27} (pileup event from {+225}Np and {+221}Pa decays); E|a=6.75 MeV {I2}, T{-1/2}=110 s {I+250-90} (assigned to {+213}Fr decay). No event was seem from {+217}Ac, possibly due to its short half-life 


level_energy_unit: KEV
level_lifetime_unit: S
level_comment:
T$Computed by Mandel-Paule estimation from 36 s {I+15-8} (2017Wi13) and 32 s {I+22-9} (2016Ka13). Others: 31 s (2010KaZV), 17 s {I+119-17} (2003MoZX). 
E$Assumed ground state. 
%EC+%B+$Inferred from the observation that fission is the only decay mode observed following population of {+230}Am. Given that {+230}Am is odd-odd, it is assumed that all such fission is |b-delayed. See 2016Ka13, 2017Wi13. 


level_energy_unit: KEV
level_lifetime_unit: S
level_comment:
%A Value from calculated T{-1/2}(|a) in 2001Mo07, 1997Mo25. 
T From 1989HaZO, 1990Ha28. Other values: 84 s 18 (1967Ku15), 55 s 2 (1978Ha25). 
Fission fragments following the electron-capture (|e) decay of {+232}Am have been detected. An emission probability of 0.069% {I10} has been estimated on the basis of a measured K x-ray/fission ratio and reported in 1990Ha28. The detected fission fragments probably originate from highly excited states in {+232}Pu populated in the |e decay of {+232}Am. 
Possible configuration=((|p 5/2[523])(|n 3/2[631])) J|p=1-. 


level_energy_unit: KEV
level_lifetime_unit: MIN
level_comment:
J$5/2- from systematics (2017Au03) and theory (2019Mo01) 
T$from 2004Sa05. Theory T{-1/2}(|a)=100 min, T{-1/2}(|e)>100 s (2019Mo01) 
%A$>3 from 2004Sa05 (also 2002As08), based on |a detection efficiency and Pu K{-|a1} x ray; <6% from study of |a chain in {+237}Cf decay (2010Kh06). From these two values, evaluators deduce %|a=4.5 {I15}. %|e+%|b{++}=100-%|a, assuming no SF decay. 


level_energy_unit: KEV
level_lifetime_unit: MIN
level_comment:
No E|a=6.46 MeV with %IA=0.039 {I12} reported in 1990Ha02 was observed (limit %IA<0.04). |e decay was inferred from the observation of Pu ka1 (2002As08,2004Sa05). 
1972Sk03 proposed from the systematics of fission- isomer half lives that an observed 2.6-min fission activity was probably not caused by SF decay of an isomeric state in {+234}Am, but perhaps was due to SF decay of a shape isomer (second well of the nuclear potential) in {+234}Pu populated by the |e decay of {+234}Am. Plutonium K x-rays reported in 1990Ha02 were observed in coincidence with fission fragments, which have shown that the SF activities indeed originate from a SF isomer in {+234}Pu, populated in the |e decay of {+234}Am. 
For calculations of delayed-fission probabilities see 1979Ku22. 
T From 1990Ha02. 2.6 min {I2} (1967Ku17), 3.5 min {I13} (2004Sa05). Other measurements: 1974ArYU, 1978SoZZ. 


level_energy_unit: KEV
level_spin_parity: 5/2-
level_lifetime_unit: MIN
level_comment:
T$from |a(t) 2004Sa05, 2000SaZO. Other: 9.3 min {I7} (1999SaZT), 15 min {I5} (1996KoZZ,1996Gu11,1997Sh21,1999Ya13) 
J$Configuration=(|p 5/2[523]) (2004As12) 
%A from Pu K| x ray and |a particles measured simultaneously in a known geometry using calibrated detectors (2004Sa05,2000SaZO). 


level_energy_unit: KEV
level_spin_parity: 5-
level_lifetime_unit: MIN
level_comment:
J$log {Ift}=4.9 |e decay to 5-; proposed configuration=((|p 5/2-[523])(|n 5/2+[633])) (2005As01) 
T$from 2005As01; others: 4.4 min {I8} Pu K|a| x ray(t) (1998Ts02) and 3.73 min {I28} (1989HaZO). 
%A$0.004 {I1} for |a decay with E=6150 keV and T{-1/2}=3.1 min {I13} of g.s. or isomer of {+236}Am (2004Sa05). An E|a=6.41 MeV with %|a=0.042 {I6} was reported in 1989HaZO, but not observed in 2004Sa05 with %|a|<0.002. 


level_energy_unit: KEV
level_energy_info: ;OFF=X
level_spin_parity: (1-)
level_lifetime_unit: MIN
level_lifetime_info: ;ISO=M
level_comment:
J$log {Ift}=4.8 |e to (0-), log {Ift}=5.3 |e to (2-) and |e decay to 1-; proposed configuration=((|p 5/2-[523])(|n 5/2+[633])) (2005As01) 
T$from 2005As01. 
%A$0.004 {I1} for |a decay with E=6150 keV and T{-1/2}=3.1 min {I13} of g.s. or isomer of {+236}Am (2004Sa05). 


level_energy_unit: KEV
level_spin_parity: 5/2(-)
level_lifetime_unit: MIN
level_comment:
(|a)/(|a+|e)=0.00025 {I3} was deduced by measuring the |a and |g spectra of the same sample (1975Ah05). I|g(280.2|g)=0.473 {I20} per |e decay was used. In 1952Hi63 an |a/|e=9.1|*10{+-6} {I33} value was determined from ce- and |a-counting rates, assuming that {+239}Pu(d,3n) and {+239}Pu(d,4n) reactions had equal yields at E(d)=30-50 MeV. 
J log| {Ift} values of 6.8 and 6.9 for the |e decay to the 3/2+ state at 155.45 keV and to the 7/2+ state at 320.97 keV in {+237}Pu, respectively, limit spin to 5/2. The possible |e decay to the 1/2+ state at 145.544 keV implies J|p=5/2-. Analogy with {+241}Am suggests 5/2[523] orbital. 
T Weighted average of 73.0 min {I10} (1975Ah05) and 74.4 min {I12} (1972PoZS). Other measurement: |?80 min (1952Hi63) 


level_energy_unit: KEV
level_lifetime_unit: NS
level_comment:
Only SF decay reported. 
T From 1970Po01. 
E From 1971Br39, a value of E=2400 {I|+200} was deduced from the fit to {+238}Pu(p,2n) reaction excitation function reported in 1970Po01. In 1970Po01 a value of E=3000 {I|+300} was deduced from the difference between the Q values for {+238}Pu(p,2n) reaction for production of the isomeric and the ground states; E=2100 {I200} was suggested in 1973Br38. E=2400 {I200} keV was recommend in 1980Bj02. 
Assignment: {+238}Pu(p,2n) excit (1970Po01); {+237}Np(|a,4n) excit (1973Fl03); systematics of fissioning isomers. See 1984Bl06 for calculated excitation function for (|a,4n) reaction. 
For theoretical calculations of E(level), T{-1/2}(SF) and T{-1/2}(|g), see 1972We09. 
For calculations of fission barrier see 1984Ku05. 


level_energy_unit: KEV
level_spin_parity: 1+
level_lifetime_unit: MIN
level_comment:
From log ft values of |e decays to 0+...3- levels, J|p({+238}Am)=1+ or 2-. J|p=2- is ruled out from ratios of ft values for |e feeding to band members. 
Configuration=((|p 5/2[523])-(|n 7/2[743])), in analogy to {+241}Am for the proton state, and to {+235}U for the neutron state (see 1972El21 for systematics of odd-nucleon states) 
T$rounded-off value from 97.8 min (1972PoZS). Others: 98 min {I3} (1972Ah04), 112 min {I5} (1960Gl01), earlier measurement (1950St61) 


level_energy_unit: KEV
level_energy_info: ;ERR=AP;ERR=?
level_lifetime_unit: US
level_lifetime_info: ;ERR=?;ISO=M1
level_comment:
%SF: only SF decay observed 
T{-1/2}(SF) and T{-1/2}(|g) were calculated by 1972We09 as 93 |ms and 510 s, respectively 
T from 1969JoZU. This value supersedes that of 60 |ms {I15} from 1967Bo23. 
Assignment: {+239}Pu(p,2n) excit (1967Bo23,1972Br35), {+237}Np(|a,3n) excit (1973Fl03) 
E SF isomeric level energy was calculated: E=2.29 MeV (1972We09), E=2.7 {I2} MeV (1971Br39). Other calculations: 1970Ja16, 1972Ma11. See 1971Br39 and 1972We09 for calculations of double-humped barrier parameters. 


level_energy_unit: KEV
level_spin_parity: (5/2)-
level_lifetime_unit: H
level_comment:
J favored (HF=1.4) |a-particle transition to {+235}Np(49 keV, (5/2)-,5/2[523]). 
T from 1972Po04. Others: 12.1 h {I4} (1960Gl01), 11.9 h {I5} (1972PoZS) 
%|e, %|a (1972Po04). Other measurements: 1960Gl01, 1952Hi63. 
Calculated T{-1/2}({+32}Si)=1.3|*10{+23} s (2012Ba35), 1.12|*10{+23} s,8.1|*10{+24} s (using two-different proximity potentials 2012Ku29). Calculated T{-1/2}({+34}Si)=7.8|*10{+26} s (2012Sa31). Other similar calculations: 2011Sa40, 2011Sh13, 2010Ni13 


level_energy_unit: KEV
level_spin_parity: (5/2+)
level_comment:
J 146.4|g (E1) to (7/2-), 187.1|g (E1) to (5/2)-. Low HF(|?111) from {+243}Bk |a Decay is consistent with no spin flip (1972El21). 


level_energy_unit: KEV
level_spin_parity: (7/2+)
level_lifetime_unit: NS
level_lifetime_info: ;ISO=M
level_comment:
SF isomer. T{-1/2} from 1971Br38, 1972Br35. Others: 1969La14, 1973Fl03, 1970Vi05, 1985Ra28. T{-1/2}(SF) calc=161 ns (2005Re16) 
E from {+240}Pu(p,2n) (1972Br35,1969La14), {+237}Np(|a,2n) and {+239}Pu(d,2n) (1971Br38). E=2.4 MeV (1980Bj02). 
$|m: g=0.74 {I5} (1985Ra28). g-factor measured by perturbed angular correlation of fission fragments in a magnetic field (1985Ra28) 
J$7/2[404] orbital was assigned from g-factor by 1985Ra28 (g-factor was assumed to be positive). 


level_energy_unit: KEV
level_spin_parity: (3-)
level_lifetime_unit: H
level_comment:
%A$ as recommended by 1986LoZT; |?1.9|*10{+-4} (1970Go42) 
$ %|b{+-}<6|*10{+-6} (1960Gl01) 
T$ from 1972Ah07. Others: 50 h (1949se01), 53 h (1952Hi63,1952Hi11), 51.0 h {I5} (1960Gl01); 50.9 h {I7} (1966Bi03). 
J$ log ft=5.8 to 3+, probable configuration: |p5/2[523]+|n1/2[631]. 


level_energy_unit: KEV
level_lifetime_unit: MS
level_lifetime_info: ;ISO=M
level_comment:
E$ fission isomer; energy from 1971Br39. Others: 1979Ku12, 1974Ga41, 1973Be04, 1973Be05, 1972Wo07, 1972Br35, 1970Ga04, 1968Bj04, 1967Ga14. Reactions used are: {+240}Pu(p,n); {+240}Pu(d,2n); {+240}Pu(t,3n); {+241}Am(|g,n); {+241}Am(n,2n); {+241}Am(d,t); {+241}Am({+22}Ne,{+23}Ne) 
T$ from 1979Be46, SF isomer. Others: 1973Be05, 1972Wo07, 1971Br39, 1970Ga04, 1967Bj03. 
Intrinsic electric-quadruple moment: Q{-0}=33.9 {I8} deduced by 2001Ba65 (also 2000Bb15) from optical isotope shift. Others: Q{-0}=29.0 {I13} (1985Jo04); 32.7 {I20} (1979Be46,1981Be48, 1985Be58); 1985Jo04 (muonic x rays) 
$|D<r{+2}>({+242m}Am-{+240m}Am)(fission isomers)= -0.288 fm{+2} {I24} (1998Ba04) 


level_energy_unit: KEV
level_spin_parity: 5/2-
level_lifetime_unit: Y
level_comment:
$%SF is obtained from adopted T{-1/2} and T{-1/2}(SF) values. 
T$From evaluated t{-1/2} as recommended by 2004ChZX 
$T{-1/2}: Measured values 432.7 y {I7} by calorimetry (1967Oe01) 433 y {I7} by specific activity (1968Br22) 436.6 y {I30} by specific activity (1968St02) 426.3 y {I21} by calorimetry (1972Jo07) 432.8 y {I16} by specific activity (1974Po16) 432.5 y {I7} by calorimetry (1974StYG) 432.0 y {I2} by calorimetry (1975Ra35) 
$1989Ho24 recommend T{-1/2}=432.7 y {I6}, 1991BaZS recommend 432.2 y {I7}, 2004ChZX recommend 432.6 y {I6}, 2004Wo02 recommend 433.1 {I11} Earlier t{-1/2} measurements prior to 1967: 470 {I+6-10} y (1952Ha68), 458.1 y {I5} (1957Ha10), 457.7 y {I18} (1958Wa69). These measurements have been excluded from 2004ChZX's evaluation due to large systematic uncertainties 
 
$T{-1/2}(SF): Measured values 2.3|*10{+14} y {I8} (1961Dr03) 0.90|*10{+14} y {I4} (1970Ga27) 1.147|*10{+14} y {I24} (1970Go06) 1.8|*10{+14} y {I4} (1986Pa17) 1.2|*10{+14} y {I6} (1993Ku16) 1.2|*10{+14} y {I3} Adopted as recommended by 2000Ho27. 
 
$No {+34}Si decay was observed: 
$ {+34}Si/|a<3.0|*10{+-12} (1985Ho21), <4.2|*10{+-13} (1986Pa17), <8.7|*10{+-15} (1985TrZY), <7.4|*10{+-16} (1987Mo28). 
$No other cluster emission was observed: cluster/|a<5.0|*10{+-15} (1986Tr10). See also 1995Ar33 
 
$|m measured by atomic beam with laser fluorescent spectroscopy (1990Iz01). Compiled by 2014StZZ, others:+1.61 {I3} (1966Ar04). 
$Q measured by Muonic X-ray hyperfine structure method (1985Jo04) (1990Iz01) and recommended by 2013StZZ. Compiled by 2014StZZ, others: +3.8 {12} (1989DrE26), +3.14 {I5} (1990Iz01), +4.2 {I13} (1988Be30) 
J$J from optical spectroscopy (1953Fr01 and 1956Th18) and atomic beam (1960Ma30). Configuration 5/2[523] Nilsson-state assignment is from the measured magnetic moment 


level_energy_unit: KEV
level_spin_parity: (1/2)-
level_comment:
J$M1+E2 |g to 3/2-. log| {Ift}=6.32 from 1/2+ rules out 5/2-. In |e decay, 1974Po08 suggest that the 652 level is the bandhead of the 1/2[530] band with the 3/2- member at 637 keV 


level_energy_unit: KEV
level_energy_info: ;ERR=AP;ERR=?
level_lifetime_unit: US
level_lifetime_info: ;ISO=M1
level_comment:
E LEVEL ENERGY HELD FIXED IN LEAST-SQUARES ADJUSTMENT 
Assignment: {+242}Pu(p,2n) excit (1969La14); {+241}Pu(13-MeV d,2n) (1969La14); {+241}Am(14.7-MeV n,n') (1973Be04). 
E Threshold energy of (p,2n) reaction, obtained by 1969La14 yielded E=2500 {I100}; from fit to excitation function for (p,2n) reaction of 1969La14, E(level)=2200 {I200} obtained by 1971Br39, 1972Br35. For calculated isomeric level energy, see, for example, 1970Ja16, 1972We09, 1987Gu03. 
Only SF decay was observed. 
|G(|g)/|G(SF)<1 from absence of 472|g (1976Be55). 
1972We09 calculated T{-1/2}(|g)/T{-1/2}(SF)=2.7|*10{+-3}/0.45 |*10{+-6}. 
T Unweighted average of 1.5 |ms {I6} (1969La14) and 0.9 |ms {I3} (1993Ku16). 
For calculated T{-1/2}(SF), see 1990Bh02, for example. 
Fission-barrier parameters were deduced from fission probability measured in {+240}Pu({+3}He,d) reaction (1974Ba73,1976Ga11). 1981Re06 deduced barrier heights from fission probability data of 1976Ga11. See 1980Ku14, 1984Ku05, 1987Gu03, 1989Bh01, 1990Bh02, 1992Gr10 for calculated barrier parameters. 


level_energy_unit: KEV
level_spin_parity: 1-
level_lifetime_unit: H
level_comment:
MOMM1$Atomic beam magnetic resonance (2019StZV, 1966Ar04) 
MOME2$Atomic beam magnetic resonance (2021StZZ, 1966Ar04) 
%B-,%EC$Weighted average from %|b{+-}/|e=5.1 {I1} (1959Ho02), 4.8 {I1} (1969Ga17), %|e=18 {I1} (1969Al20), and %|b{+-}=82.7 {I3} (1972Ga35) with the constraint that %|b{+-}+%|e=100. Others: 1959Ba22 report %|e=16.4 {I8} but associate it with the 141-y isomer, 1960As05 report %|e=16 but do not quote an uncertainty 
%A$From 1969Al20 for E|a in the range 5000 to 5300 
J$From 1961Ma27 (atomic-beam resonance). The experimental magnetic moment agrees with the theoretical one for the configuration K=0,(|p 5/2[523]-|n 5/2[622]) 
T$From 1953Ke38. Others: 16.02 h {I2} (2005Ma90. Value is from author's thesis quoted from their reference 2), 16.07 h {I4} (1969Al20, 16.1 h {I1} (1982Wi05). Note that in the work of 1953Ke38 the authors state in the abstract that the uncertainty is at the 99% confidence level; however, in the text the uncertainty is stated to be the standard deviation. In the work of 1969Al20 the authors quote an uncertainty of 0.04 h based on a weighted average of five measurements given in their Table 2. The uncertainty is apparently a misprint since a weighted average of those values gives an uncertainty of 0.14 h 


level_energy_unit: KEV
level_spin_parity: 5-
level_lifetime_unit: Y
level_lifetime_info: ;ISO=M1
level_comment:
MOMM1$Laser Resonance Spectroscopy with Radioactive Detection (2019StZV,1988Be30) 
MOME2$Atomic beam magnetic resonance (2021StZZ,1988Be30) 
J$E4|g to 1- 
%A,%IT$%|a is from the adopted half-life and the partial |a half-life. %IT is then 100-%|a since %SF is negligible for this calculation and no |b{+-} has been observed 
%SF$From the partial half-life T{-1/2}(SF)>3.0|*10{+12} y (1986Ze06). This partial half-life is recommended by 2000Ho27 
MOMM1$1988Be30 calculated the magnetic moment as |m=-1.1 for the (|p 5/2[523]+|n 5/2[622]) configuration, in disagreement with the measured value. 
T$Recommended by 1979Ze05 from their results from two methods, 139.7 {I18} and 141.9 {I17}. Other: 152 y {I7} (1959Ba22) 
$T{-1/2}(|a)=3.10|*10{+4} y {I8}, a weighted average of 2.85|*10{+4} y {I16} (1959Ba22) and 3.12|*10{+4} y {I5} (1979Ze05). 1959Ba22 report T{-1/2}=3.20|*10{+4} y {I16}. The evaluators have recalculated the author's value using the most recent values of the standards used by the author 
$T{-1/2}(SF)=9.5|*10{+11} y {I35} (1967Ca04), >3.0|*10{+12} y (1986Ze06), 2000Ho27 adopt the limit value. 


level_energy_unit: KEV
level_spin_parity: 1+
level_comment:
J$E1 |g's to 0- and 2- members of the gs band. I|g(154|g)/I|g(186|g) and the non-observation of feeding to the 1- member of the gs band agree with the Alaga rule for K=0 but not for K=1 


level_energy_unit: KEV
level_spin_parity: 3-
level_comment:
J$M1+E2 |g to 4- for the 244.381 level, and M1+E2 |g to 1- for the 296.401 level, along with a connecting M1(+E2) |g, uniquely establish J|p =3- and 2- for the 244 and 296 levels, respectively. 


level_energy_unit: KEV
level_energy_info: ;ERR=?
level_spin_parity: (6- & 7-)
level_comment:
J$In (d,t), 1976Gr19 treat this as a single level with J|p=6-, while 1976KaZL consider it a doublet consisting of the 6- and 7- members of the band 


level_energy_unit: KEV
level_spin_parity: (4)+
level_comment:
J$M1+E2 |g to 3+. 
The intense 5119.7-keV primary gamma in {+241}Am(thermal n,|g) reaction is assigned to feed this level, rather than the 418.12-keV level, since the 1+, 2+ and 3+ members of the (|p 5/2[642]-|n 5/2[622]) band are populated by strong primary gammas; whereas, the 3+ level of the (|p 5/2[642]+|n 1/2[631]) rotational band is not populated (the 418.12-keV level is the 4+ member). 


level_energy_unit: KEV
level_energy_info: ;ERR=?
level_spin_parity: (9-)
level_comment:
J$1976KaZL from their (d,t) data tentatively assign the 796 level as the 9- member of the K|p=2- (|p 5/2[523]-|n 1/2[631]) band 


level_energy_unit: KEV
level_spin_parity: (2+,3-)
level_lifetime_unit: MS
level_lifetime_info: ;ISO=M2
level_comment:
Possible IT branch of this isomeric state was deduced from observation of a 2200|g, tentatively assigned to the 13.9-ms isomeric state in {+242}Am. This branch is not considered as well established. Note that for J|p=2+ the 2200|g to the 1- gs would have B(E1)(W.u.)=1.2|*10{+-15}|*BR where Branching is the branching ratio, and for J|p=3- the 2200|g would have B(E2)(W,u.)=8.7|*10{+-12}|*BR 
$Alpha decay from this isomeric level has not been observed: (I(|a)/SF) |< 0.1 (no |a observed; 1965Le22, 1983WeZT); (I(|a)/SF) |< 0.015 (No 8500|a observed; 1973Be05); (I(|a)/SF) |< 0.00005 (1985AcZZ). Other measurement: 1963Fl08. 
$See 1992Ma34 for a detailed review of all experiments done in search for |a and |g decays from this isomeric state. 
T$The adopted value is a weighted average of the listed values excluding those of 1966Br23 and 1975Va21 which are outliers by Chauvenet's criteria. The measured half-lives and production methods are 13 ms {I8}: {+238}U(80-110-MeV {+16}O,x) (1962Po09). 12.6 ms {I11}: {+238}U(39.6-MeV |a,p), 14 ms {I2}: {+242}Pu(19.8-MeV d,2n) 1963Fl08. 13.5 ms {I12}: {+238}U(92-119-MeV {+16}O,x),{+238}U(117-MeV {+20}Ne,x ), {+238}U(150-MeV {+22}Ne,x) (1963Pe27). 14.0 ms {I4}: {+242}Pu(7-12-MeV d,2n) (1965Fl04). 13.1 ms {I10}: {+243}Am(14-MeV n,2n) (1965Li05). 16.7 ms {I15}: {+242}Pu(12-MeV d,2n) (1966Br23). 14.0 ms {I7}: {+243}Am(8-14.4-MeV n,2n) (1967Fl03). 14.0 ms {I2}: {+242}Pu(12.5-MeV d,2n) (1968Er01). 10.2 ms {I9}: {+241}Am(thermal n,|g) (1975Va21). 13.9 ms {I5}: {+242}Pu(17-MeV {+3}H,3n) (1976We03). 16 ms {I7}: {+243}Am+{+26}Mg (1981VaZQ) Other T{-1/2} measurements: 1973Be04,1981Ga25,1981Lu06. 
MOMM1$Laser Resonance Spectroscopy with Radioactive Detection (2020StZV, 1996Ba52) 
MOME2$Optical Isotope-Shift measurement (1998Ba04) 
J from the measurement of hyperfine structure splitting, 1996Ba52 deduced J=2 or 3. See also 1992Ba67, 1992Ba72. The probable proton and neutron orbitals suggest 2+ or 3- which would be consistent with deexciting 2200|g, if it decays to the 1- {+242}Am g.s. 
Among the p and n state combinations suggested by 1996Ba52, if the 2200|g decays to the {+242}Am g.s., the 2+ (|p 5/2[523]-|n 9/2[734]) and 3- (|p 5/2[523]-|n 11/2[615]) could be possible configurations. For other proposed spin and configurations, see 1966Ma48, 1967Ga04, 1967Vi01, 1971Br39. 
Intrinsic quadrupole moment and |b(2) deformation parameter of 14-ms {+242}Am isomer were deduced by 1998Ba04 from their optical isotope-shift measurements; |b(2)=0.691, Q(20)=35.6 were obtained. These results were compared by 1998Ba04 with theoretical calculations. The authors pointed out that the small differences in |b(2) and Q(20) for isomeric states of {+240}Am and {+242}Am, |D|b(2)=0.0076 {I14}, |DQ(20)=0.63 {I8}, indicate the stability of nuclear deformation in the second potential minimum. 
$Isotope shift (14-ms {+242}Am, relative to {+241}Am)=2.83 {I9} (1998Ba04). 
$Earlier measurements of optical isotope shift were reported in 1996Ba52, 1993Ba79, 1987Me22. 
E$from observed 2200|g, if it decays to {+242}Am g.s. No ce's corresponding to 150-400|g were identified (1976Be55). The level energy was also deduced from fits to excitation functions and threshold energies: E(level)=2.6 {I3} MeV (1967Fl03, reanalyzed by 1971Ba30); 3.3 {I2} MeV (1970Ga04); 2.9 {I3} MeV (1971Br39); 2.3 {I2} MeV (1973Br04, reanalyzed available data). 
$Anisotropy of SF fragments was measured by 1992Ba72 and 1985Vo17. 
$Isomeric state fission probability was deduced by 1993Ku16 from fission fragment distribution. 


