ADOPTED LEVELS for 166Ir
Author: Coral M. Baglin | Citation: Nucl. Data Sheets 109, 1103 (2008) | Cutoff date: 1-Mar-2008
Full ENSDF file | Adopted Levels (PDF version)
| Q(β-)=-8.6×103 keV SY | S(n)= 9.8×103 keV SY | S(p)= -1152 keV 8 | Q(α)= 6722 keV 6 | ||
| Reference: 2012WA38 |
| References: | |||
| A | 170Au α decay (0.29 MS) | B | 170Au α decay (0.62 MS) |
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) |
| 0 | A | (2-) | 10.5 ms 22 % α = 93 3 % p = 7 3 |
| 172 6 | B | (9+) | 15.1 ms 9 % α = 98.2 6 % p = 1.8 6 |
Jπ(level): Based on a comparison between measured and calculated partial half-lives for proton emission to (7/2-) 165Os, 1997Da07 conclude that the odd proton occupies the d3/2 orbital in 166Ir(g.s.) (L=2 proton emission) and the h11/2 orbital in 166Ir(172 level) (L=5 proton emission). At very small deformation, the 89th neutron is expected to occupy an f7/2 orbital.
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
Assignment: targets of elements from Mo through Sn and V through Ni were irradiated with beams of 58Ni and 107Ag, respectively. Specific beam energies were in the range between 4.4 MeV/U and 5.9 MeV/U. Velocity filter, ion implantation in Si (surface-barrier and position-sensitive) detectors (1981Ho10,1981HoZM); 58Ni bombardment of 112Sn, E=297 MeV (1996Pa01).
Q-value: Note: Current evaluation has used the following Q record -8410 syst 9650 syst-1152 8 6724 6 2003Au03
Q-value: Uncertainty in Q(β-) and S(n) is 540 and 300 (2003Au03).