ADOPTED LEVELS, GAMMAS for 245Es

Authors: E. Browne, J. K. Tuli |  Citation: Nucl. Data Sheets 112, 447 (2011) |  Cutoff date: 1-Jun-2010 

 Full ENSDF file | Adopted Levels (PDF version) 


Q(β-)=-3.8×103 keV SYS(n)= 7.7×103 keV SYS(p)= 2.40×103 keV SYQ(α)= 7909 keV 3
Reference: 2012WA38

References:
  A  249Md α decay 

General Comments:

For calculations of fission barrier parameters, see 1984Ku05.

For nuclear structure and nuclear reactions (theory) see: 2010Ni02, 2009He20, 2005Zh24, 2004Be10, 2004Pa40, 2001Mo07.

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










E(level)
(keV)
XREFJπ(level) T1/2(level)E(γ)
(keV)
I(γ)M(γ)Final Levels
    0.0A (3/2-) 1.1 m 1 
% ε = 60 10
% α = 40 10
     
  0+XA 7/2+        
   52.8+XA        
  253.2+X 3 A 7/2-     200.4 7 
  253.2 5 
   20 8 
  100

E1
   52.8+X
  0+X

7/2+

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Additional Gamma Data:













E(level)
(keV)
Jπ(level)T1/2(level)E(γ)
(keV)
MultipolarityConversion
Coefficient
Additional Data
  253.2+X 7/2-     253.2 5 E10.067α=0.067

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Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
    0.0(3/2-) 1.1 m 1 
% ε = 60 10
% α = 40 10
ε/(α+ε)=0.60 10 was deduced by 1973Es01 from comparison of the maxima of excitation curves for 249Md and 245Es α activities in 241Am(12C,X) reactions. α/ε=0.20 5, which gives %ε=83 4, was obtained by 1967Mi06 from the yields for 245Cf and 245Es α’s.
E(level): ε/(α+ε)=0.60 10 was deduced by 1973Es01 from comparison of the maxima of excitation curves for 249Md and 245Es α activities in 241Am(12C,X) reactions. α/ε=0.20 5, which gives %ε=83 4, was obtained by 1967Mi06 from the yields for 245Cf and 245Es α’s.
  0+X7/2+   7/2[633] NIlsson orbital (2005He27).
  253.2+X7/2-   7/2[514] Nilsson orbital (2005He27).

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Additional Gamma Comments:

E(level)E(gamma)Comments

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