ADOPTED LEVELS for 99Kr

Authors: E. Browne, J. K. Tuli |  Citation: Nucl. Data Sheets 145, 25 (2017) |  Cutoff date: 1-Jul-2017 

 Full ENSDF file | Adopted Levels (PDF version) 


Q(β-)=12362 keV SYS(n)= 2520 keV SYS(p)= 17798 keV SYQ(α)= -10725 keV SY
Reference: 2017WA10

General Comments:

Discovery of the krypton isotopes: 2010He02.

99Kr produced in Be(238U,f) using projectiles with E=345 Mev/nucleon. Identification of 99Kr made on the basis of magnetic ridigity, tine-of-flight, and energy loss.

Q-value: Esimated uncertainties (2017Wa10): 401 for Q(β-); 499 for s(n); 566 for s(p), and 641 for Q(α).




E(level)
(keV)
T1/2(level)
  0.0 13 ms +34-6 
% β- = 100
% β-n = 11 7

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Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
  0.0 13 ms +34-6 
% β- = 100
% β-n = 11 7
Activity assumed to be from the ground state of 99Kr.

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