ADOPTED LEVELS for 279Rg
Author: C. Morse | Citation: Nucl. Data Sheets 182, 130 (2022). | Cutoff date: 14-Sep-2021
Full ENSDF file | Adopted Levels (PDF version)
| Q(β-)=-3299 keV SY | S(n)= 6870 keV SY | S(p)= 1818 keV SY | Q(α)= 1.053×104 keV 17 | ||
| Reference: 2021WA16 |
| References: | |||
| A | 283Nh α decay (0.07 S) | ||
| E(level) (keV) | XREF | T1/2(level) |
| 0 | A | 0.09 s +17-4 % α = 100 % SF ≤ 25 |
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
$ 279Rg has been observed as the α-decay product of 283Nh at JINR (2004Og03,2013Og01) and GSI (2013Ru11). Events were identified by the observation of chains of correlated α decays, terminated by spontaneous fission. Comparison of the properties of the decay chains to those previously observed in the literature allowed the assignment of individual decays to specific isotopes.
$ 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-)=578, ΔS(n)=574, ΔS(p)=662 (2021Wa16)
Q-value: S(2n)=12828 syst 631, S(2p)=5865 syst 786 (2021Wa16)