ADOPTED LEVELS, GAMMAS for 233Np
Authors: B. Singh, J. K. Tuli, E. Browne | Citation: Nucl. Data Sheets 170, 499 (2020) | Cutoff date: 8-Oct-2020
Full ENSDF file | Adopted Levels (PDF version)
| Q(β-)=-2100 keV 70 | S(n)= 7480 keV SY | S(p)= 3950 keV 50 | Q(α)= 5630 keV 50 | ||
| Reference: 2017WA10 |
| References: | |||
| A | 233Pu ε decay (20.9 M) | B | 237Am α decay (73.6 M) |
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | Final Levels | |
| 0.0 | AB | (5/2+) | 36.2 m 1 % ε = 100 % α ≤ 0.0007 | ||||
| 34.4 3 | A | (7/2+) | 34.4S | | 0.0 | (5/2+) | |
| ≈50 | B | 5/2(-) | |||||
| 512.5 4 | A | 478.3 3 512.4 3 | 100 13 93 21 | 34.4 0.0 | (7/2+) (5/2+) | ||
| 534.7 4 | A | 500.3 3 534.8 3 | 43 4 100 4 | 34.4 0.0 | (7/2+) (5/2+) | ||
| 558.7 4 | A | 524.4 3 558.8 3 | 48 8 100 10 | 34.4 0.0 | (7/2+) (5/2+) | ||
| 583.4 5 | A | 583.3 4 | 100 | 0.0 | (5/2+) | ||
| 725.9 5 | A | 191.0 3 726.2 4 | 100 14 69 11 | 534.7 0.0 | (5/2+) | ||
| 770.0 6 | A | 235.4 3 | 100 | 534.7 | |||
| 830.9 3 | A | 247.4 4 830.9 3 | 65 18 100 12 | 583.4 0.0 | (5/2+) | ||
| 991.8 4 | A | 221.7 4 457.4 3 991.7 3 | 51 6 44 10 100 10 | 770.0 534.7 0.0 | (5/2+) | ||
| 1012.4 4 | A | 978.1 3 1012.3 3 | 48 9 100 10 | 34.4 0.0 | (7/2+) (5/2+) | ||
| 1035.3 5 | A | 1000.5 3 1035.4 5 | 100 22 32 9 | 34.4 0.0 | (7/2+) (5/2+) | ||
| 1062.6 5 | A | 504.0 3 1028.4 5 | 100 12 32 9 | 558.7 34.4 | (7/2+) | ||
| 1243.3 6 | A | 180.8 4 207.4 3 473.2 4 | 50 11 100 9 30 7 | 1062.6 1035.3 770.0 | |||
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
| 0.0 | (5/2+) | 36.2 m 1 % ε = 100 % α ≤ 0.0007 | E(level): Possible Member of π5/2[642] band. |
| 34.4 | (7/2+) | E(level): Possible Member of π5/2[642] band. |
1950Ma14: production and identification of 233Np in 233U(d,2n) and 235U(d,4n) reactions followed by chemical separation.
Theoretical studies: consult the NSR database at www.nndc.bnl.gov for 13 references dealing with theoretical calculations about decay modes and half-lives, and eight for nuclear structure.
Q-value: Estimated ΔS(n))=110 (2017Wa10).
Q-value: S(2n)=13820 70, S(2p)=10050 50 (2017Wa10)