ADOPTED LEVELS for 246Bk
Authors: E. Browne, J. K. Tuli | Citation: Nucl. Data Sheets 112, 1833 (2011) | Cutoff date: 1-Jan-2011
Full ENSDF file | Adopted Levels (PDF version)
Q(β-)=-1.2×102 keV 6 | S(n)= 5.92×103 keV 6 | S(p)= 4.33×103 keV 6 | Q(α)= 6.07×103 keV 6 | ||
Reference: 2012WA38 |
E(level) (keV) | Jπ(level) | T1/2(level) |
0.0+X | 2(-) | 1.80 d 2 % ε = 100 |
Additional Level Data and Comments:
E(level) | Jπ(level) | T1/2(level) | Comments |
Other Reactions:
232Th(14N,x), E(c.m.)=77.3 MeV, 235U(11B,X). Measured mass distribution of fission fragments (2009Gh04). Other: 2008Si17.
Nuclear structure. Theory: Calculated binding and separation energies, Q(α), half-life (2008Do12,2001Mo07).
Compilations:
Long-lived isomers: 1987So10
Rotational structure, configurations: 1994So16
Levels: In analogy with neighboring odd-mass nuclei one expects for Z=97 configuration=(π 3/2[521]) (from 245Bk, 247Bk, 251Bk) and for n=149 configuration=(ν 7/2[624]) (from 243Pu, 245Cm). This combination should give two states with Jπ=2- and with Jπ=5-, respectively, the latter being of lower energy (Gallagher-Moszkowski rule). Another possible configuration=(π 7/2[633]) (from 249Bk) and configuration=(ν 7/2[624]) would give 7+, 0+ states. 1987So10 predict the occurrence of 2- and 0+ states in this nuclide.
Q-value: Note: Current evaluation has used the following Q record -123 60 5918 60 4325 60 6.07×103 6 2011AuZZ,2003Au03