ADOPTED LEVELS for 253Md
Authors: E. Browne, J. K. Tuli | Citation: Nucl. Data Sheets 114, 1041 (2013) | Cutoff date: 1-Mar-2012
Full ENSDF file | Adopted Levels (PDF version)
| Q(β-)=-3185 keV SY | S(n)= 7407 keV SY | S(p)= 2932 keV SY | Q(α)= 7573 keV 8 | ||
| Reference: 2012WA38 |
| References: | |||
| A | 257Lr α decay | B | 253No ε decay |
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) |
| 0 | AB | (7/2-) | 6 m +12-3 % ε ≈ 99.3 % α ≈ 0.7 |
| 60 30 | A | ||
| ≥1000 | B |
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
| 60 | E(level): From 257Lr α decay. | ||
| 1000 | Strong γ rays are observed at 394.2 and 453.5 keV, in coin with Md K x rays and conversion electrons between 40 to 400 keV. The two γ rays are not in mutual coincidence (2011An13). |
Calculations:
Ground state properties: 1997Mo25, 1995Mo29, 2004Pa40
Single-particle Nilsson levels: 1994Cw02, 2004Pa40
Half-lives for α and β decay: 1997Mo25
1994Cw02 have calculated the following single-particle level sequence: g.s., 1/2[521]; 0.29 MeV, 7/2[514]; 0.44 MeV, 7/2[633]; 0.51 MeV, 9/2[624]; 0.83 MeV, 3/2[521].
Q-value: 2012Wa38: Estimated ΔQ(β-)=32, ΔS(n)=134, ΔS(p)=32