ADOPTED LEVELS for 234Pu

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-)=-4.11×103 keV SYS(n)= 7.77×103 keV 5S(p)= 4.89×103 keV 6Q(α)= 6310 keV 5
Reference: 2012WA38

References:
  A  238Cm α decay  B  234Am ε decay

General Comments:

Assignment: 233U(α,3n) chem; precursor of 30-min 226Th (1949Hy04,1949Pe04); daughter 238Cm, chem (1952Hi63).

See 1993Po14 for theoretical predictions of Eα and T1/2.

Exotic decays via heavy-particle emission (cluster decays) were studied, and decay rates calculated by: 2005Ku32 (24Ne, 28Mg); 2005Ku04 (24Ne, 32Si, 29Al, 28Mg, 27Na).

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






E(level)
(keV)
XREFJπ(level) T1/2(level)
      0.0AB 0+ 8.8 h 1 
% ε ≈ 94
% α ≈ 6
  <4170 B 3 ns
% IT = ?
% SF ≤ 100

Back to top

Back to top

Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
      0.00+ 8.8 h 1 
% ε ≈ 94
% α ≈ 6
Branchings were deduced from measured values of α/εK=0.09 and εL/εK=0.3 (1956Ho99). Other measurements: ε/α>9 (1973Ja06).
E(level): Branchings were deduced from measured values of α/εK=0.09 and εL/εK=0.3 (1956Ho99). Other measurements: ε/α>9 (1973Ja06).
   4170 3 ns
% IT = ?
% SF ≤ 100
This level may be complex, and comprised of several levels in the second well of the nuclear potential.
E(level): This level may be complex, and comprised of several levels in the second well of the nuclear potential.

Back to top