ADOPTED LEVELS for 271Bh
Author: C. Morse | Citation: Nucl. Data Sheets 182, 130 (2022). | Cutoff date: 14-Sep-2021
Full ENSDF file | Adopted Levels (PDF version)
| Q(β-)=-1832 keV SY | S(n)= 6442 keV SY | S(p)= 2861 keV SY | Q(α)= 9.42×103 keV 9 | ||
| Reference: 2021WA16 |
| References: | |||
| A | 275Mt α decay (20 MS) | ||
| E(level) (keV) | XREF | T1/2(level) |
| 0 | A | 1.5 s +28-6 % α = 100 % SF ≤ 25 |
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
$ 271Bh has been observed as the α-decay daughter of 275Mt at JINR (2004Og03,2013Og01) and GSI (2013Ru11). Chains of correlated α decays terminated by spontaneous fission were observed, and comparison of their properties to previously observed chains allowed individual decays to be assigned to specific nuclei.
$ Half-lives, branching ratios, and α-decay energies in this evaluation have been computed from the individual events listed in the references above. Half-life uncertainties have been computed according to the method of 1984Sc13. An additional 10 keV systematic uncertainty is assumed for the α-decay energies, which is added in quadrature to the averaged statistical uncertainty.
Q-value: ΔQ(β-)=473, ΔS(n)=486, ΔS(p)=598 (2021Wa16)
Q-value: S(2n)=11761 syst 536, S(2p)=7867 syst 732 (2021Wa16)