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 SY | S(n)= 7.77×103 keV 5 | S(p)= 4.89×103 keV 6 | Q(α)= 6310 keV 5 | ||
| Reference: 2012WA38 |
| References: | |||
| A | 238Cm α decay | B | 234Am ε decay |
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) |
| 0.0 | AB | 0+ | 8.8 h 1 % ε ≈ 94 % α ≈ 6 |
| <4170 | B | 3 ns % IT = ? % SF ≤ 100 |
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
| 0.0 | 0+ | 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. |
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 -4180 syst 7770 50 4890 50 6310 5 2003Au03