ADOPTED LEVELS for 240Cm
Author: C. Morse | Citation: Nucl. Data Sheets 206, 359 (2025) | Cutoff date: 27-Sep-2024
Full ENSDF file | Adopted Levels (PDF version)
| Q(β-)=-3940 keV SY | S(n)= 7.49×103 keV 15 | S(p)= 4955.1 keV 23 | Q(α)= 6397.8 keV 6 | ||
| Reference: 2021Wa16 |
| References: | |||
| A | 244Cf α decay | ||
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) |
| 0 | A | 0+ | 30.4 d 37 % SF = 4×10-6 1 % α > 99.5 % ε < 0.5 |
| 40 6 | A | (2+) | 154 ps |
| X | 10 ps 3 % SF ≤ 100 | ||
| Y | 55 ns 12 % SF ≤ 100 |
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
| 0 | 0+ | 30.4 d 37 % SF = 4×10-6 1 % α > 99.5 % ε < 0.5 | E(level): Using the charge-plunger technique and invoking the rotational model, 1978Ul01 determined a quadrupole moment of 12.0 b 5 for the ground-state rotational band. |
| 40 | (2+) | 154 ps | E(level): Using the charge-plunger technique and invoking the rotational model, 1978Ul01 determined a quadrupole moment of 12.0 b 5 for the ground-state rotational band. |