ADOPTED LEVELS for 234Np

Authors: E. Browne, J. K. Tuli |  Citation: Nucl. Data Sheets 108, 681 (2007) |  Cutoff date: 1-Jun-2006 

 Full ENSDF file | Adopted Levels (PDF version) 


Q(β-)=-393 keV 11S(n)= 6.06×103 keV 6S(p)= 4253 keV 9Q(α)= 5357 keV 9
Reference: 2012WA38

References:
  A  238Am α decay 

General Comments:

233U(p,3n) E=17-40 MeV. Measured cross sections (2005Aa02).

238U(p,5n), 232Th(7Li,5n) E=30-46 MeV. Measured fission excitation functions, fission fragment mass yields (1999Zh41).

Levels: See also 234Pu ε decay and 238Am α decay for comments on levels populated in those decays.

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






E(level)
(keV)
XREFJπ(level) T1/2(level)
  0.0A (0+) 4.4 d 1 
% ε = 100
  0.0+XA  

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Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
  0.0(0+) 4.4 d 1 
% ε = 100
%α<0.01: not observed (no 4.4-d α activity and no 230Pa growth in 234Np was observed (1949Hy04)).
E(level): %α<0.01: not observed (no 4.4-d α activity and no 230Pa growth in 234Np was observed (1949Hy04)).
  0.0+X   Possible configuration is Jπ=1-: π 5/2[523], ν 3/2[631].
E(level): Possible configuration is Jπ=1-: π 5/2[523], ν 3/2[631].

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