ADOPTED LEVELS, GAMMAS for 137I

Authors: E. Browne, J. K. Tuli |  Citation: Nucl. Data Sheets 108,2173 (2007) |  Cutoff date: 1-Oct-2006 

 Full ENSDF file | Adopted Levels (PDF version) 


Q(β-)=6027 keV 9S(n)= 4882 keV 17S(p)= 9219 keV 9Q(α)= 141 keV 9
Reference: 2012WA38

References:
  A  137Te β- decay  B  248Cm SF decay

General Comments:

235U, 239Pu n-induced fission yields: 2006Ro26, 2002Is13

238U n-, p-induced fission yields: 2000Lh02

235U fission yield: 1988Le21

β-n Spectrum: measured neutrons (1997Gr20)

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

Q-value: Q(β-n)=1851 27 (syst,2003Au03)










E(level)
(keV)
XREFJπ(level) T1/2(level)E(γ)
(keV)
I(γ)M(γ)Final Levels
     0.0AB (7/2+) 24.5 s 2 
% β- = 100
% β-n = 7.14 23
     
   243.3AB 5/2+     243.3
  100

     0.0
(7/2+)
   554.20 9  B 9/2+     554.2 1 
  100
M1+E2
     0.0
(7/2+)
   620.51 9  B 11/2+     620.5 1 
  100
E2
     0.0
(7/2+)
   954.39 10  B 13/2+     333.9 1 
  400.2 1 
   26.6 16 
  100 4 
M1+E2
E2
   620.51
   554.20
11/2+
9/2+
  1108.74 11  B 15/2+     154.4 1 
  488.2 1 
 
  100

E2
   954.39
   620.51
13/2+
11/2+
  1312.82 12  B 17/2+     204.1 1 
  358.4 1 
 
  100

E2
  1108.74
   954.39
15/2+
13/2+
  1608.64 13  B 19/2+     295.8 1 
  499.9 1 
  100.0 11 
   14 5 


  1312.82
  1108.74
17/2+
15/2+
  2037.70 13  B 21/2+     429.1 1 
  724.9 1 
    3.6 9 
  100 9 

E2
  1608.64
  1312.82
19/2+
17/2+
  2222.99 14  B 23/2+     185.3 1 
  614.3 1 
   51.4 15 
  100 15 


  2037.70
  1608.64
21/2+
19/2+
  2742.66 15  B 25/2+     519.6 1 
  705.0 1 
   30 5 
  100 5 


  2222.99
  2037.70
23/2+
21/2+
  3084.87 16  B 27/2+     342.3 1 
  861.9 1 
    8.3 17 
  100 6 


  2742.66
  2222.99
25/2+
23/2+
  3166.98 17  B 29/2+     424.2 1 
  100

  2742.66
25/2+
  3651.45 17  B (31/2+)     484.4 1 
  566.7 1 
 
  100


  3166.98
  3084.87
29/2+
27/2+
  3852.82 19  B (33/2+)     201.4 1 
  100

  3651.45
(31/2+)

E(level): From least-squares fit to Eγ’s

Jπ(level): From γγ(θ), directional-polarization correlation, γ(pol). The level structure is interpreted in terms of 136Te core excitations coupled with 7/2+ gs and 5/2+ 243 levels (2001Ko78)

Back to top

Band Transitions:

E(level)
(keV)
Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 1 - ΔJ=2 cascade band based on (7/2+) GS
   620.51 9  11/2+        
  1108.74 11  15/2+     154.4 1 
  488.2 1 
 
  100

E2
   954.39
   620.51
13/2+
11/2+
  1608.64 13  19/2+     295.8 1 
  499.9 1 
  100.0 11 
   14 5 


  1312.82
  1108.74
17/2+
15/2+
  2222.99 14  23/2+     185.3 1 
  614.3 1 
   51.4 15 
  100 15 


  2037.70
  1608.64
21/2+
19/2+
  3084.87 16  27/2+     342.3 1 
  861.9 1 
    8.3 17 
  100 6 


  2742.66
  2222.99
25/2+
23/2+
  3651.45 17  (31/2+)     484.4 1 
  566.7 1 
 
  100


  3166.98
  3084.87
29/2+
27/2+
E(level)
(keV)
Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 2 - ΔJ=2 cascade band based on (9/2+) 554.2 level
   554.20 9  9/2+        
   954.39 10  13/2+     333.9 1 
  400.2 1 
   26.6 16 
  100 4 
M1+E2
E2
   620.51
   554.20
11/2+
9/2+
  1312.82 12  17/2+     204.1 1 
  358.4 1 
 
  100

E2
  1108.74
   954.39
15/2+
13/2+
  2037.70 13  21/2+     429.1 1 
  724.9 1 
    3.6 9 
  100 9 

E2
  1608.64
  1312.82
19/2+
17/2+
  2742.66 15  25/2+     519.6 1 
  705.0 1 
   30 5 
  100 5 


  2222.99
  2037.70
23/2+
21/2+
  3166.98 17  29/2+     424.2 1 
  100

  2742.66
25/2+
  3852.82 19  (33/2+)     201.4 1 
  100

  3651.45
(31/2+)

Back to top

Additional Gamma Data:











E(level)
(keV)
Jπ(level)T1/2(level)E(γ)
(keV)
MultipolarityMixing
Ratio
   554.20 9/2+     554.2 1 M1+E2+1.1 6
   954.39 13/2+     333.9 1 M1+E2+0.08 3

Back to top

Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
     0.0(7/2+) 24.5 s 2 
% β- = 100
% β-n = 7.14 23
-n from 1993Ru01. Other: 6.97 42 (1989BrZI) from 1989BrZI.
E(level): %β-n from 1993Ru01. Other: 6.97 42 (1989BrZI) from 1989BrZI.
   554.209/2+   E(level): ΔJ=2 cascade band based on (9/2+) 554.2 level.
   620.5111/2+   E(level): ΔJ=2 cascade band based on (7/2+) GS.
   954.3913/2+   E(level): ΔJ=2 cascade band based on (9/2+) 554.2 level.
  1108.7415/2+   E(level): ΔJ=2 cascade band based on (7/2+) GS.
  1312.8217/2+   E(level): ΔJ=2 cascade band based on (9/2+) 554.2 level.
  1608.6419/2+   E(level): ΔJ=2 cascade band based on (7/2+) GS.
  2037.7021/2+   E(level): ΔJ=2 cascade band based on (9/2+) 554.2 level.
  2222.9923/2+   E(level): ΔJ=2 cascade band based on (7/2+) GS.
  2742.6625/2+   E(level): ΔJ=2 cascade band based on (9/2+) 554.2 level.
  3084.8727/2+   E(level): ΔJ=2 cascade band based on (7/2+) GS.
  3166.9829/2+   E(level): ΔJ=2 cascade band based on (9/2+) 554.2 level.
  3651.45(31/2+)   E(level): ΔJ=2 cascade band based on (7/2+) GS.
  3852.82(33/2+)   E(level): ΔJ=2 cascade band based on (9/2+) 554.2 level.

Back to top