ADOPTED LEVELS, GAMMAS for 129Cd
Author: Balraj Singh | Citation: ENSDF | Cutoff date: 31-JUL-2015
Authors: Janos Timar and Zoltan Elekes, Balraj Singh | Citation: Nucl. Data Sheets 121, 143 (2014) | Cutoff date: 31-May-2014
Full ENSDF file | Adopted Levels (PDF version)
| Q(β-)=9330 keV SY | S(n)= 4340 keV SY | S(p)= 15900 keV SY | Q(α)= -11710 keV SY | ||
| Reference: 2012WA38 |
| References: | |||
| A | 9Be(238U,Fγ) | ||
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
| 0 | A | 11/2- | 154 ms 2 % β- = 100 % β-n > 0 | |||||
| 0+X | 3/2+ | 146 ms 8 % β- = 100 % β-n > 0 | ||||||
| 1181 | A | (13/2-) | 1181 | 100 | 0 | 11/2- | ||
| 1587 | A | (15/2-) | 406 1587 | 100 ≈33 | (M1) | 1181 0 | (13/2-) 11/2- | |
| 1940 | A | (21/2+) | 3.6 ms 2 % IT = 100 | 353 | 100 | (E3) | 1587 | (15/2-) |
M(γ): From measured yields of γ rays and conversion electrons for the 353 and 406 transitions
| E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) (keV) | Multipolarity | Conversion Coefficient | Additional Data |
| 1587 | (15/2-) | 406 | (M1) | 0.0111 | α=0.0111 | |
| 1940 | (21/2+) | 3.6 ms 2 % IT = 100 | 353 | (E3) | 0.0665 | B(E3)(W.u.)=0.47 3, α=0.0665 |
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
| 0 | 11/2- | 154 ms 2 % β- = 100 % β-n > 0 | μ=-0.7063 5 (2013Yo02,2014StZZ), Q=+0.570 26 (2013Yo02,2014StZZ) Theoretical %β-n=0.07 (1997Mo25), 0.77, 0.94 (2002Pf04). E(level): Ordering of the 406-1181 γ cascade is not established experimentally, but the level ordering in energies and spins is predicted by shell-model calculations. Ordering of the 11/2- and 3/2+ ms-activities of 129Cd is not established experimentally, it is predicted in shell-model calculations by 2014Ta29. Also in 1996Bo11 shell-model calculations, h11/2 is predicted to be the ground state. 1995Mo27 also give 11/2- for ground state in theoretical calculations. Half-lives are from measured decay-time distributions of γ-ray transitions in coincidence with parent β- decay (2015Ta13). Jπ(level): From shell-model predictions (2014Ta29). T1/2(level): Ordering of the 11/2- and 3/2+ ms-activities of 129Cd is not established experimentally, it is predicted in shell-model calculations by 2014Ta29. Also in 1996Bo11 shell-model calculations, h11/2 is predicted to be the ground state. 1995Mo27 also give 11/2- for ground state in theoretical calculations. Half-lives are from measured decay-time distributions of γ-ray transitions in coincidence with parent β- decay (2015Ta13). |
| 0+X | 3/2+ | 146 ms 8 % β- = 100 % β-n > 0 | μ=+0.8481 8 (2013Yo02,2014StZZ), Q=+0.132 9 (2013Yo02,2014StZZ) E(level): Ordering of the 406-1181 γ cascade is not established experimentally, but the level ordering in energies and spins is predicted by shell-model calculations. Ordering of the 11/2- and 3/2+ ms-activities of 129Cd is not established experimentally, it is predicted in shell-model calculations by 2014Ta29. Also in 1996Bo11 shell-model calculations, h11/2 is predicted to be the ground state. 1995Mo27 also give 11/2- for ground state in theoretical calculations. Half-lives are from measured decay-time distributions of γ-ray transitions in coincidence with parent β- decay (2015Ta13). Jπ(level): From shell-model predictions (2014Ta29). T1/2(level): Ordering of the 11/2- and 3/2+ ms-activities of 129Cd is not established experimentally, it is predicted in shell-model calculations by 2014Ta29. Also in 1996Bo11 shell-model calculations, h11/2 is predicted to be the ground state. 1995Mo27 also give 11/2- for ground state in theoretical calculations. Half-lives are from measured decay-time distributions of γ-ray transitions in coincidence with parent β- decay (2015Ta13). |
| 1181 | (13/2-) | Ordering of the 406-1181 γ cascade is not established experimentally, but the level ordering in energies and spins is predicted by shell-model calculations. Jπ(level): From shell-model predictions (2014Ta29). | |
| 1587 | (15/2-) | Configuration=νh11/2-1~#πg9/2-2 (2014Ta29). Jπ(level): From shell-model predictions (2014Ta29). | |
| 1940 | (21/2+) | 3.6 ms 2 % IT = 100 | Configuration=νh11/2-1~#π(g9/2-1p1/2-1) mixed with νh11/2-1~#π(g9/2-1p3/2-1) and νh11/2-1~#π(g9/2-1f5/2-1) (2014Ta29). Jπ(level): From shell-model predictions (2014Ta29). |
1986Go10: 129Cd produced by thermal neutron fission of 235U at OSIRIS, Studsvik facility, measured half-life from decay curve for a 281-keV γ ray, but a γ ray of this energy has not been reported in the detailed study of decay of 129Cd by 2015Ta13
2003ArZX, 2005Kr20: 129Cd produced through spallation of Uranium using 1 GeV p beam at ISOLDE-CERN facility, Laser isotope separator. Measured β-n, half-lives by decay curve for delayed neutrons, proportional counter. Two ms-activities assigned to 129Cd
2015Ta13: measured half-lives of the two activities of 129Cd at RIBF-RIKEN facility
2015Lo04: measured half-life of a single activity at RIBF-RIKEN facility
Q-value: Estimated (2012Wa38) uncertainties: 200 for Q(β-) and S(n), 360 for S(p), 450 for Q(α)
Q-value: Q(β-n)=2570 250, S(2n)=11160 200, S(2p)=30650 540 (syst,2012Wa38)