ADOPTED LEVELS, GAMMAS for 202At
Author: F.G. Kondev | Citation: Nucl. Data Sheets 196, 342 (2024) | Cutoff date: 1-Sep-2023
Full ENSDF file | Adopted Levels (PDF version)
| Q(β-)=-4320 keV 30 | S(n)= 7877 keV 29 | S(p)= 1363 keV 28 | Q(α)= 6353.8 keV 13 | ||
| Reference: 2021WA16 |
| References: | |||
| A | 206Fr α decay | B | 206Fr α decay (16 S) |
| C | 206Fr α decay (0.7 S) | ||
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
| 0 | ABC | 3+ | 184 s 1 % ε = 88 7 % α = 12 7 | |||||
| 190 40 | BC | 7+ | 182 s 2 % ε = 91.4 11 % α = 8.6 11 | |||||
| 582 40 | C | 10- | 0.46 s 5 % IT = 99.90 1 % α = 0.096 11 | 391.7 2 | 100 | E3 | 190 | 7+ |
| E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) (keV) | Multipolarity | Conversion Coefficient | Additional Data |
| 582 | 10- | 0.46 s 5 % IT = 99.90 1 % α = 0.096 11 | 391.7 2 | E3 | 0.268 | B(E3)(W.u.)=0.00061 7, α=0.268 4, α(K)=0.0987 14, α(L)=0.1249 18, α(M)=0.0336 5, α(N)=0.00875 12, α(O)=0.001757 25, α(P)=0.0001943 28 |
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
| 0 | 3+ | 184 s 1 % ε = 88 7 % α = 12 7 | Q=-0.54 33, μ=4.16 16 Eα=6227 keV 3 (1963Ho18), 6226 keV 3 (1967Tr06), 6227 keV 5 (1974Ho27), 6228 keV 2 (1975BaYJ), and 6154 keV 18 (2015We16). |
| 190 | 7+ | 182 s 2 % ε = 91.4 11 % α = 8.6 11 | Eα=6133 keV 2 (1963Ho18), 6133 keV 3 (1967Tr06), 6133 keV 5 (1974Ho27) and 6135 keV 2 (1975BaYJ). E(level): Eα=6133 keV 2 (1963Ho18), 6133 keV 3 (1967Tr06), 6133 keV 5 (1974Ho27) and 6135 keV 2 (1975BaYJ). |
| 582 | 10- | 0.46 s 5 % IT = 99.90 1 % α = 0.096 11 | Eα=6277 keV 5 (1992Hu04). |
| E(level) | E(gamma) | Comments |
| 582 | 391.7 | E(γ): From 1992Hu04; other: 391 keV (1981Ri04) M(γ): From α(K)exp=0.088 12 and K/L=0.62 1 (1992Hu04). |