ADOPTED LEVELS, GAMMAS for 249Es
Author: Khalifeh Abusaleem | Citation: Nucl. Data Sheets 112, 2129 (2011) | Cutoff date: 31-Dec-2010
Full ENSDF file | Adopted Levels (PDF version)
| Q(β-)=-2.34×103 keV SY | S(n)= 7.20×103 keV SY | S(p)= 3.35×103 keV SY | Q(α)= 6.94×103 keV SY | ||
| Reference: 2012WA38 |
| E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) (keV) | M(γ) |
| 0 | 7/2+ | 102.2 m 6 % ε = 99.43 8 % α = 0.57 8 | ||
| 353.2 4 | (7/2-,9/2-) | 353.2 4 | (E1) |
| E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) (keV) | Multipolarity | Conversion Coefficient | Additional Data |
| 353.2 | (7/2-,9/2-) | 353.2 4 | (E1) | 0.0334 | α=0.0334, α(K)=0.0261 4, α(L)=0.00547 8, α(M)=0.001340 19, α(N)=0.000370 6, α(O)=9.54×10-5 14, α(P)=1.748E-5 25, α(Q)=8.06E-7 12, α(N+)=0.000484 7 |
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 | Iα/I(K| x ray)=0.007 1 (1970Ah01). |
| 353.2 | (7/2-,9/2-) | 7/2[514] state (2005He27). |
Calculations, compilations:
Favored α decays: 1993Bu09, 1992Bu03
Ground state properties: 1997Mo25, 1995Mo29
Single-particle Nilsson levels: 2004Pa04, 1994Cw02
2004Pa04 calculate the following single-particle level sequence: g.s. 7/2[633], 0.17 MeV 3/2[521], 0.28 MeV 1/2[521], 0.61 MeV 7/2[514], 0.67 MeV 5/2[642], 0.75 MeV 1/2[400]
1994Cw02 calculate the following single-particle level sequence: g.s. 7/2[633], 0.28 MeV 3/2[521], 0.39 MeV 1/2[521], 0.81 MeV 7/2[514], 0.83 MeV 5/2[642], 0.92 MeV 1/2[660]
Q-value: Note: Current evaluation has used the following Q record
Q-value: -2443 syst 7196 syst 3352 syst 6936 2009AuZZ
Q-value: Estimated ΔQ(β-)=31, ΔS(n)=60, ΔS(p)=31, ΔQ(α)=30