ADOPTED LEVELS for 238Am
Authors: E. Browne, J. K. Tuli | Citation: Nucl. Data Sheets 127, 191 (2015) | Cutoff date: 1-Jun-2014
Full ENSDF file | Adopted Levels (PDF version)
| Q(β-)=-1022 keV 52 | S(n)= 6219 keV SY | S(p)= 3959 keV 51 | Q(α)= 6042 keV 50 | ||
| Reference: 2012WA38 |
| E(level) (keV) | Jπ(level) | T1/2(level) |
| 0.0 | 1+ | 98 m 2 % ε = 100 % α = 1.0×10-4 4 |
| ≈2500 | 35 µs % SF ≤ 100 |
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
| 0.0 | 1+ | 98 m 2 % ε = 100 % α = 1.0×10-4 4 | From log ft values of ε decays to 0+...3- levels, Jπ(238Am)=1+ or 2-. Jπ=2- is ruled out from ratios of ft values for ε feeding to band members. E(level): From log ft values of ε decays to 0+...3- levels, Jπ(238Am)=1+ or 2-. Jπ=2- is ruled out from ratios of ft values for ε feeding to band members. |
| 2500 | 35 µs % SF ≤ 100 | Assignment: 239Pu(p,2n) excit (1967Bo23,1972Br35), 237Np(α,3n) excit (1973Fl03). |
Cluster Decay:
238Am(29Mg), 238Am(33Si) (2012Ba35)
238Am(32Si) (2011Sh13)
Fission: 2009Mo18, 2005Re16.
Calculated t, Q(α): 2008Do12
Superdeformed states: 2001Ma74
Q-value: ΔS(n)=78 syst (2012Wa38)