ADOPTED LEVELS for 197Os

Author: Balraj Singh |  Citation: ENSDF |  Cutoff date: 14-MAY-2009 

 Full ENSDF file | Adopted Levels (PDF version) 


Q(β-)=2.96×103 keV SYS(n)= 5.10×103 keV SYS(p)= 1.01×104 keV SYQ(α)= -1.4×103 keV SY
Reference: 2012WA38

References:
  A  9Be(208Pb,xγ) 

General Comments:

2003Xu08: 197Os formed in Pt(n,2p) reaction at E(n)=14 MeV and natural Pt target. Measured γ rays in singles and coincidence from decay of 197Os. Ten γ rays were reported to populate levels in 197Ir. Since no mass or chemical separation was attempted in the experiment by 2003Xu08, the evaluator treats the identification and half-life measurement as tentative.

2008St20, 2008StZY: 197Os formed by fragmentation of 208Pb beam at 1 GeV/nucleon from SIS accelerator at GSI facility. Nuclei of interest were separated using FRS. The transmitted ions were slowed in Al degraders and stopped in a plastic catcher. The catcher was surrounded by RISING γ-ray spectrometer to measure γ rays correlated with fragments. Many events were assigned to 197Os in the fragment yield distribution shown by 2008St04

Q-value: Note: Current evaluation has used the following Q record

Q-value: No Q values are available from 2009AuZZ or 2003Au03





E(level)
(keV)
XREF T1/2(level)
  0  2.8 m 6 
% β- = 100
  XA 78 ns 7 
% IT = 100

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Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
  0 2.8 m 6 
% β- = 100
Only β- decay mode is possible and has possibly been observed by 2003Xu08.
E(level): Only β- decay mode is possible and has possibly been observed by 2003Xu08.
  X 78 ns 7 
% IT = 100
Four γ rays with almost equal intensities were reported by 2008StZY at 204, 416, 487 and 629 keV, but the level scheme was not established.

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