ADOPTED LEVELS for 245Bk

Author: C.D. Nesaraja |  Citation: Nucl. Data Sheets 189, 1 (2023) |  Cutoff date: 14-Feb-2023 

 Full ENSDF file | Adopted Levels (PDF version) 


Q(β-)=-1571.4 keV 26S(n)= 6971 keV 14S(p)= 3927.0 keV 14Q(α)= 6454.5 keV 14
Reference: 2021WA16

References:
  A  245Cf ε decay  B  249Es α decay




E(level)
(keV)		XREFJπ(level) T1/2(level)
     0.0AB (3/2-) 4.96 d 3 
% ε = 99.88 1
% α = 0.12 1
     0.0+X B 7/2+  
  61+X 13  B (9/2+)  
  1560 Calc.    2 ns 1 
% SF = 100

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Band Transitions:

E(level)
(keV)		Jπ(level) T1/2(level)
Band 1 - 3/2[521] ROTATIONAL band.
     0.0 (3/2-) 4.96 d 3 
% ε = 99.88 1
% α = 0.12 1
E(level)
(keV)		Jπ(level) T1/2(level)
Band 2 - 7/2[633] ROTATIONAL band.
     0.0+X 7/2+  
  61+X 13  (9/2+)  

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Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
     0.0(3/2-) 4.96 d 3 
% ε = 99.88 1
% α = 0.12 1
E(level): 3/2[521] ROTATIONAL band.
     0.0+X7/2+   E(level): 7/2[633] ROTATIONAL band.
  61+X(9/2+)   E(level): 7/2[633] ROTATIONAL band.
  1560 2 ns 1 
% SF = 100
Only SF decay was observed. T1/2(γ)/T1/2(SF) was calculated by 1972We09 as 5.6×10-8.
E(level): Only SF decay was observed. T1/2(γ)/T1/2(SF) was calculated by 1972We09 as 5.6×10-8.

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