ADOPTED LEVELS for 259Fm
Authors: E. Browne, J. K. Tuli | Citation: Nucl. Data Sheets 114, 1041 (2013) | Cutoff date: 1-Aug-2011
Full ENSDF file | Adopted Levels (PDF version)
Q(β-)=80 keV SY | S(n)= 4793 keV SY | S(p)= 6286 keV SY | Q(α)= 6470 keV SY | ||
Reference: 2012WA38 |
E(level) (keV) | T1/2(level) |
0 | 1.5 s 2 % SF = 100 |
Additional Level Data and Comments:
E(level) | Jπ(level) | T1/2(level) | Comments |
Calculations, compilations:
Ground state properties: 1997Mo25, 1995Mo29
Pion decay: 1988Io05
Single-particle levels: 2005Pa13, 1994Cw02
Spontaneous Fission: 2005Re16, 2004Ro01
Proton Decay, Cluster Radioactivity: 2002Du16
1994Cw02 calculates the following single-particle level sequence: g.s. 9/2[615], 0.03 MeV 11/2[725], 0.05 MeV 7/2[613], 0.11 MeV 3/2[622], 0.17 MeV 1/2[620]
Assignment: 257Fm(t,p) (1980Hu03).
Symmetric mass distribution in SF found; most probable total kinetic energy release is 242 MeV (1980Hu03).
Q-value: Estimated ΔQ(β-)=346, ΔS(n)=347, ΔS(p)=411, ΔQ(α)=200 (2012Wa38)