102KR    COMMENTS                                                ENSDF    202102
102KR  H TYP=FUL$AUT=BALRAJ SINGH$CIT=ENSDF$CUT=31-JAN-2021$                    
102KR C  TITL$NUCLEAR DATA SHEETS FOR 102KR                                     
102KR c  AUTH$BALRAJ SINGH                                                      
102KR c  INST$Department of Physics and Astronomy,                              
102KR#c       McMaster University, Hamilton, Ontario,                           
102KR#c       Canada, L8S 4M1                                                   
102KR c  ABST$Information about the identification and production of the        
102KR2c  {+102}Kr nuclide from 2021Su01 is presented.                           
102KR c  CUT$Literature available up to Jan 31, 2021 has been consulted.        
102KR C  CIT$ENSDF                                                              
102KR c  FUND$                                                                  
                                                                                
102KR    ADOPTED LEVELS                                          ENSDF    202102
102KR  H TYP=FUL$AUT=BALRAJ SINGH$CIT=ENSDF$CUT=31-JAN-2021$                    
102KR  Q 12150     CA 4310   CA 19370  CA -13000 CA    2019MO01                 
102KR cQ $S(2n)=6310, S(2p)=36530 (theory, 2019Mo01)                            
102KR cQ $Q(|b{+-}n)=9340,  Q(|b{+-}2n)=4760 (deduced by evaluator from         
102KR2cQ theoretical values in 2019Mo01)                                        
102KR c  2021Su01: {+102}Kr nuclide produced and identified at the              
102KR2c  RIBF-RIKEN facility using the {+9}Be({+238}U,F) reaction with a        
102KR3c  {+238}U beam of E=345 MeV/nucleon produced by the RIBF                 
102KR4c  accelerator complex. Target={+9}Be with a thickness of 2.92 mm.        
102KR6c  Nuclidic identification (PID) was made by determining the atomic number
102KR7c  Z and mass-to-charge (A/Q) ratio of the ions using magnetic rigidity,  
102KR7c  time-of-flight, and energy loss (tof-B|r-|DE method) using the BigRIPS 
102KR8c  fragment separator, and ZeroDegree spectrometer, with the separator    
102KR9c  settings determined from simulations using the LISE++ code. The        
102KRAc  time-of-flight was measured using two thin plastic scintillators placed
102KRBc  at the foci of the BigRIPS. The B|r values were deduced from trajectory
102KRCc  reconstruction of measured position and angle of fragments using       
102KRDc  parallel plate avalanche counters (PPACs), and adjusted to transport a 
102KREc  {+108}Y{+39+} beam along the central trajectory. The |DE values were   
102KREc  measured using multisampling ionization chambers (MUSICs). Comparison  
102KRFc  of measured cross sections with theoretical calculations using 3EER and
102KRGc  IFN1 models.                                                           
102KR c  Theoretical calculations: 15 primary references in the NSR database    
102KR2c  (available at www.nndc.bnl.gov/nsr/), 12 for nuclear structure, and    
102KR3c  three for radioactive decay half-life and other properties             
102KR  L 0             0+                                                       
102KR2 L %B-=100 $ %B-N=? $ %B-2N=?                                             
102KR cL $Only |b{+-} decay mode is expected, followed by delayed-neutron decay,
102KR2cL thus 100% |b decay is assigned by inference                            
102KR cL $Theoretical T{-1/2}=19.3 ms, %|b{+-}n=44, %|b{+-}2n=1                 
102KR2cL (2019Mo01)                                                             
102KR cL $Theoretical T{-1/2}=13.5 ms, %|b{+-}n=61, %|b{+-}2n=0.4,              
102KR2cL (2016Ma12)                                                             
102KR cL $A total of seven counts were assigned to {+102}Kr as in Fig. 2 and    
102KR2cL Table II of 2021Su01, with probability of misidentification of {+102}Kr
102KR3cL isotope given as <0.01%.                                               
102KR cL $Measured production |s=2.4|*10{-10} mb {I+13-9} (or 0.24 pb {I+13-9}) 
102KR2cL (2021Su01)                                                             
102KR cL T$lower limit from time-of-flight of probably 550 ns, as specified     
102KR2cL in other papers from RIKEN e.g. 2018Fu08.                              
102KR3cL Actual half-life is expected to be much longer as suggested            
102KR4cL by the theoretical values of 19.3 ms (2019Mo01) and 13.5 ms (2016Ma12).
102KR5cL From a general decreasing trend of half-lives with increasing neutron  
102KR6cL number, T{-1/2} for {+102}Kr is expected to be <20 ms, based on        
102KR7cL measured half-lives of 43 ms for {+98}Kr, 40 ms for {+99}Kr, and       
102KR8cL 7 ms {I+11-3} for {+100}Kr, available in literature.