ADOPTED LEVELS for 255Es

Authors: E. Browne, J. K. Tuli |  Citation: Nucl. Data Sheets 114, 1041 (2013) |  Cutoff date: 1-Nov-2011 

 Full ENSDF file | Adopted Levels (PDF version) 


Q(β-)=290 keV 10S(n)= 5973 keV 12S(p)= 4540 keV 16Q(α)= 6436.3 keV 14
Reference: 2012WA38

References:
  A  255Cf β- decay 

General Comments:

Calculations, compilations:

α decay: 1993Bu09, 1992Bu03

Ground state properties: 2010Ni02, 2008Do12, 2007Ro08, 1997Mo25, 1995Mo29.

Pion decay: 1988Io05

Single-particle Nilsson levels: 2010Ad19, 2004Pa40, 1994Cw02.

Spontaneous fission calculated half-lives: 2005Re16, 2005RoZS, 2004Ro01.

1994Cw02 have calculated the following single-particle level sequence: g.s. 7/2[633], 0.30 MeV, 3/2[521]; 0.31 MeV, 1/2[521]; 0.51 MeV, 7/2[514]; 0.53 MeV, 1/2[660]; 0.62 MeV, 5/2[642].






E(level)
(keV)
XREFJπ(level) T1/2(level)
  0A (7/2+) 39.8 d 12 
% β- = 92.0 4
% α = 8.0 4
% SF = 0.0041 2

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Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
  0(7/2+) 39.8 d 12 
% β- = 92.0 4
% α = 8.0 4
% SF = 0.0041 2
T1/2(SF)=2600 y 100 (1967Fi03,2000Ho27).
E(level): T1/2(SF)=2600 y 100 (1967Fi03,2000Ho27).

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