ADOPTED LEVELS for 229U
Authors: E. Browne, J. K. Tuli | Citation: Nucl. Data Sheets 109, 2657 (2008) | Cutoff date: 1-Jun-2008
Full ENSDF file | Adopted Levels (PDF version)
| Q(β-)=-2.57×103 keV 9 | S(n)= 6083 keV 16 | S(p)= 5003 keV 8 | Q(α)= 6475 keV 3 | ||
| Reference: 2012WA38 |
| E(level) (keV) | Jπ(level) | T1/2(level) |
| 0.0 | (3/2+) | 58 m 3 % ε ≈ 80 % α ≈ 20 |
| 15 15 |
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
| 0.0 | (3/2+) | 58 m 3 % ε ≈ 80 % α ≈ 20 | εK/α≈5; value deduced by 1951Me10 from the ratio of the α activity of 231Pa (added tracer) to that of 229Pa (chemically separated from uranium parent). The ratio εK/α of 229Pa was assumed to be 100. E(level): εK/α≈5; value deduced by 1951Me10 from the ratio of the α activity of 231Pa (added tracer) to that of 229Pa (chemically separated from uranium parent). The ratio εK/α of 229Pa was assumed to be 100. |
| 15 | Q(α)(233Pu)=6420 50 suggests that the observed 6300-keV α from 233Pu feeds either the g.s. or a low-lying level in 229U with E|<30 keV. E(level): Q(α)(233Pu)=6420 50 suggests that the observed 6300-keV α from 233Pu feeds either the g.s. or a low-lying level in 229U with E|<30 keV. |
Assignment: 232Th(α,7N); parent 229Pa chem; parent 225Ac chem (1951Me10)
Q-value: Note: Current evaluation has used the following Q record $ -2570 90 6085 16 5003 7 6475 3 2003Au03