ADOPTED LEVELS, GAMMAS for 167Tb
Authors: Balraj Singh and Jun Chen | Citation: Nucl. Data Sheets 191, 1 (2023) | Cutoff date: 22-Aug-2023
Full ENSDF file | Adopted Levels (PDF version)
| Q(β-)=4028 keV 4 | S(n)= 6145.6 keV 24 | S(p)= 8801.1 keV 25 | Q(α)= -1734.2 keV 21 | ||
| Reference: 2021WA16 |
| References: | |||
| A | 167Tb IT decay (2.1 μs) | ||
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
| 0 | A | (3/2+) | 18.9 s 20 % β- = 100 | |||||
| 53 4 | A | (5/2+) | 53 4 | 100 | [M1] | 0 | (3/2+) | |
| 126 6 | A | (7/2+) | 73 4 | 100 | [M1] | 53 | (5/2+) | |
| 200 6 | A | (7/2-) | 2.1 µs 1 % IT = 100 | 73 4 147 4 | 40 5 100 17 | [E1] [E1] | 126 53 | (7/2+) (5/2+) |
| E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
| Band 1 - Possible π3/2[411] band. | |||||||
| 0 | (3/2+) | 18.9 s 20 % β- = 100 | |||||
| 53 4 | (5/2+) | 53 4 | 100 | [M1] | 0 | (3/2+) | |
| 126 6 | (7/2+) | 73 4 | 100 | [M1] | 53 | (5/2+) | |
| E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) (keV) | Multipolarity | Conversion Coefficient | Additional Data |
| 53 | (5/2+) | 53 4 | [M1] | 14 | α=14 11 | |
| 126 | (7/2+) | 73 4 | [M1] | 5.4 | α=5.4 10 | |
| 200 | (7/2-) | 2.1 µs 1 % IT = 100 | 73 4 | [E1] | 0.69 | B(E1)(W.u.)=6.1E-8 +16-12, α=0.69 12 |
| (7/2-) | 2.1 µs 1 % IT = 100 | 147 4 | [E1] | 0.107 | B(E1)(W.u.)=1.88E-8 +25-23, α=0.107 9 |
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
| 0 | (3/2+) | 18.9 s 20 % β- = 100 | Only the β- decay mode is possible, and has been detected by 1999As03, thus 100% β- is assigned by inference. E(level): Possible π3/2[411] band. |
| 53 | (5/2+) | E(level): Possible π3/2[411] band. Jπ(level): Possible member of π3/2[411] band. | |
| 126 | (7/2+) | E(level): Possible π3/2[411] band. Jπ(level): Possible member of π3/2[411] band. |
| E(level) | E(gamma) | Comments |
| 53 | 53 | E(γ): 52 in 2014YoZZ |
| 126 | 73 | E(γ): Multiply placed with intensity suitably divided I(γ): Multiply placed with intensity suitably divided |
| 200 | 73 | E(γ): 73.6 in 2014YoZZ. Multiply placed with intensity suitably divided I(γ): Multiply placed with intensity suitably divided | 147 | E(γ): 147.4 in 2014YoZZ |
1999As03: 167Tb produced and identified in 238U(p,F),E=20 MeV, followed by mass separation using the on-line isotope separator at Japan Atomic Energy Research Institute (present Japan Atomic Energy agency) tandem accelerator. 167Tb identified through genetic relationship to known γ rays from the decay of daughter activity 167Dy. Measured half-life of the decay of 167Tb and γ radiation
2017Wu04: 167Tb produced and identified in 9Be(238U,F) reaction at E(238U)=345 MeV/nucleon, followed by separation in mass and charge using BigRIPS separator and the ZeroDegree Spectrometer at RIBF-RIKEN facility by tof-Bρ-ΔE method and the ions of interest were implanted into the beta-counting system WAS3ABi, surrounded by the EURICA array of 84 HPGe detectors. Measured half-life of the decay of 167Tb by (ion)β-(t), (ion)β-γ(t) and (ions)γ(t) correlations.
2019No05: theory: calculated neutron and proton pairing residual interaction strength, binding energy, and moments of inertia using self-consistent Hartree-Fock plus BCS framework, with self-consistent blocking and Skyrme SIII parametrization.
1995Go25: calculated quadrupole moment quadratic expansion coefficient versus temperature; deduced oblate or a prolate shape.
Q-value: S(2n)=11436.9 25, S(2p)=19732 6 (2021Wa16)