ADOPTED LEVELS for 222Ac
Authors: Sukhjeet Singh, A. K. Jain, Jagdish K. Tuli | Citation: Nucl. Data Sheets 112,2851 (2011) | Cutoff date: 31-Mar-2011
Full ENSDF file | Adopted Levels (PDF version)
| Q(β-)=-582 keV 14 | S(n)= 5.97×103 keV 5 | S(p)= 3631 keV 7 | Q(α)= 7137.4 keV 21 | ||
| Reference: 2012WA38 |
| E(level) (keV) | Jπ(level) | T1/2(level) |
| 0.0 | 1- | 5.0 s 5 % ε = 1 1 % α = 99 1 |
| 0.0+X | 63 s 3 % ε ≥ 0.7 LE 2 % α ≥ 88 % IT ≤ 10 | |
| 41 14 | ||
| 137 14 |
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
| 0.0 | 1- | 5.0 s 5 % ε = 1 1 % α = 99 1 | Possible ε branching was estimated by 1966Wa23 as 1 to 2% from Iα(7.13-MeV a) of 218Rn shown in 222Ac α spectrum by 1964Mc21. E(level): Possible ε branching was estimated by 1966Wa23 as 1 to 2% from Iα(7.13-MeV a) of 218Rn shown in 222Ac α spectrum by 1964Mc21. |
| 0.0+X | 63 s 3 % ε ≥ 0.7 LE 2 % α ≥ 88 % IT ≤ 10 | %IT was deduced by 1972Es03 from ratio of Iα’s of 5-s 222Ac and 63S 222Ac. E(level): %IT was deduced by 1972Es03 from ratio of Iα’s of 5-s 222Ac and 63S 222Ac. | |
| 41 | Level seen in 226Pa α decay. E(level): Level seen in 226Pa α decay. | ||
| 137 | Level seen in 226Pa α decay. E(level): Level seen in 226Pa α decay. |