ADOPTED LEVELS for 260Lr
Author: Y. A. Akovali | Citation: Nucl. Data Sheets 87, 301 (1999) | Cutoff date: 1-Oct-1998
Full ENSDF file | Adopted Levels (PDF version)
| Q(β-)=-8.7×102 keV SY | S(n)= 5.65×103 keV SY | S(p)= 3.12×103 keV SY | Q(α)= 8.40×103 keV SY | ||
| Reference: 2012WA38 |
| E(level) (keV) | T1/2(level) |
| 0.0 | 180 s 30 % α = 80 20 % ε < 40 |
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
| 0.0 | 180 s 30 % α = 80 20 % ε < 40 | %ε<40 was estimated by 1971Es01 by comparing the number of 260Lr α’s observed with the number of 260No SF decay events; 40% was obtained when 260No is assumed to decay by spontaneous fission only. Since 256Fm was also produced in the reaction, the estimate for ε decay is very crude (1971Es01). E(level): %ε<40 was estimated by 1971Es01 by comparing the number of 260Lr α’s observed with the number of 260No SF decay events; 40% was obtained when 260No is assumed to decay by spontaneous fission only. Since 256Fm was also produced in the reaction, the estimate for ε decay is very crude (1971Es01). |
Assignment: 249Bk(95-MeV 18O), 248Cm(78-MeV 15N), parent of 256Fm (ε daughter of 256Md) (1971Es01).
For calculation of fission barrier as a function of deformation, see 1985Cw01.
For calculations of production cross sections, see 1987Ma45, 1987Ma50.
Q-value: Note: Current evaluation has used the following Q record -802 syst 5666 syst 3052 syst 8306 syst 1995Au04