ADOPTED LEVELS, GAMMAS for 249Es
Author: C.D. Nesaraja | Citation: Nucl. Data Sheets 195, 718 (2024) | Cutoff date: 12-Oct-2023
Full ENSDF file | Adopted Levels (PDF version)
| Q(β-)=-2340 keV SY | S(n)= 7200 keV SY | S(p)= 3350 keV SY | Q(α)= 6940 keV SY | ||
| Reference: 2021WA16 |
| References: | |||
| A | 253Md α decay (6 M) | ||
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
| 0 | A | 7/2+ | 102.2 m 6 % ε = 99.43 8 % α = 0.57 8 | |||||
| 49.0 6 | A | (9/2+) | ||||||
| 353.2 4 | A | (7/2-) | 304.2 4 353.2 4 | 20 100 | [E1] (E1) | 49.0 0 | (9/2+) 7/2+ | |
| E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) (keV) | Multipolarity | Conversion Coefficient | Additional Data |
| 353.2 | (7/2-) | 304.2 4 | [E1] | 0.0455 | α=0.0455 6, α(K)=0.0354 5, α(L)=0.00760 11, α(M)=0.001867 27, α(N)=0.000516 7, α(O)=0.0001326 19, α(P)=2.411×10-5 34, α(Q)=1.075E-6 15 | |
| (7/2-) | 353.2 4 | (E1) | 0.0334 | α=0.0334 5, α(K)=0.0261 4, α(L)=0.00547 8, α(M)=0.001340 19, α(N)=0.000370 5, α(O)=9.54×10-5 14, α(P)=1.748E-5 25, α(Q)=8.06E-7 11 |
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
| 0 | 7/2+ | 102.2 m 6 % ε = 99.43 8 % α = 0.57 8 | Configuration=(π7/2[633])(2012He09). |
| 353.2 | (7/2-) | Configuration=π7/2[514]. |
| E(level) | E(gamma) | Comments |
| 353.2 | 353.2 | M(γ): From α(K)exp |<0.06 (2005He27) |