ADOPTED LEVELS for 197Ir

Authors: Huang Xiaolong, Zhou Chunmei |  Citation: Nucl. Data Sheets 104, 283 (2005) |  Cutoff date: 1-Jan-2002 

 Full ENSDF file | Adopted Levels (PDF version) 


Q(β-)=2156 keV 21S(n)= 6.90×103 keV 5S(p)= 7.28×103 keV 5Q(α)= -4.6×102 keV 5
Reference: 2012WA38

General Comments:

Identification: sources from 198Pt(γ,p) chem (1978PeZJ); from 198Pt(p,2p) E=100 MeV, chem (1976PeZW); semi γ-decay curves measured.

198Pt(pol t,α), E=17 MeV; measured σ(Eα,θ), analyzing power Ay(Eα,θ); compared with predictions of distorted wave calculation; analyzed nuclear structure with interacting boson-fermion model, U(6/4) supersymmetry, spin(6) symmetry (1983Ci01,1981Ci02,1984Ci07,1985Zh10).

Levels: All data are from 198Pt(pol t,α) (1983Ci01), except as noted.

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





E(level)
(keV)
Jπ(level) T1/2(level)
      0.0 3/2+ 5.8 m 5 
% β- = 100
     52 5  1/2+  
    115 5  11/2- 8.9 m 3 
% IT = 0.25 10
% β- = 99.75 10
    224 5   
    248 5   
    460 5  5/2+  
    495 5   
    561 5   
    606 5  5/2+  
   ≈654  
    715 5  11/2-  
    761 5  5/2+  
    885 5   
    924 5   
    960 5   
   1043 5  1/2+  
   1116 5  11/2-  
   1160 5   
  ≈1202  
  ≈1300  
   1384 5   
   1426 5   
  ≈1459  
   1528 5   

Jπ(level): Based on the σ(θ) DWBA analysis and analyzing powers in 198Pt(pol t,α) (1983Ci01).

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Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
      0.03/2+ 5.8 m 5 
% β- = 100
Ay(θ=30|’)=-0.52 2; dσ/d|W(θ=30|’)=340 μb/sr.
     521/2+   Ay(θ=30|’)=+0.06 4; dσ/d|W(θ=30|’)=167 μb/sr.

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