ADOPTED LEVELS for 67Kr

Author: Balraj Singh |  Citation: ENSDF |  Cutoff date: 18-March-2022 

 Full ENSDF file | Adopted Levels (PDF version) 


S(n)= 15320 keV CAS(p)= -730 keV SYQ(α)= -1130 keV SY
Reference: 2021WA16,2019MO01

General Comments:

2016Go26, 2016Bl05: 67Kr produced and identified at RIBF-RIKEN facility in 9Be(78Kr,X) reaction at E=345 MeV/nucleon with beam intensity of up to 250 pnA. Identification of 67Kr was made by determining atomic Z and mass-to-charge ratio α/Q, where Q=charge state of the ions. The selectivity of ions was based on magnetic rigidity, time-of-flight and energy loss using BigRIPS separator and Zero degree spectrometer ZDS. The separated nuclei were implanted in a wide range silicon-strip stopper array for ion and β particle detection WAS3ABi, consisting of three highly-segmented 1 mm thick double-sided silicon detectors, a stack of ten segmented 1 mm thick single-sided silicon strip detectors. The γ rays were detected by EURICA array of 84 HPGe detectors surrounding the WAS3ABi system. α total of 348 nuclei of 67Kr were identified at the BigRIPS spectrometer, 82 at the Zero-Degree Spectrometer (ZDS), and finally 36 implanted at the WAS3ABi detection system.

2020Gi02, 2017GoZT (also 2019Go34): further analysis of experiments at RIBF-RIKEN reported in 2016Go26.

Theoretical calculations for 2p decay of 67Kr, and other structure features: NSR database has 22 references, listed here in document records.

Q-value: Estimated uncertainties (2021Wa16): 580 for S(p), 660 for Q(α) (2021Wa16)

Q-value: S(p) and Q(α) from 2021Wa16. S(n) from 2019Mo01 (theory)

Q-value: Q(ε)=16980 520, Q(εp)=18820 470, S(2p)=-2890 300 (syst, 2021Wa16). S(2n)=34350 (theory,2019Mo01)




E(level)
(keV)
T1/2(level)
  0 7.4 ms 30 
% ε = 63 14
% 2p = 37 14

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Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
  0 7.4 ms 30 
% ε = 63 14
% 2p = 37 14
α total of 82 events were assigned in 2016Go26 to 67Kr.
E(level): α total of 82 events were assigned in 2016Go26 to 67Kr.

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