ADOPTED LEVELS, GAMMAS for 123Cd
Author: Jun Chen | Citation: Nucl. Data Sheets 174, 1 (2021) | Cutoff date: 15-Apr-2021
Full ENSDF file | Adopted Levels (PDF version)
| Q(β-)=6015 keV 20 | S(n)= 4873 keV 4 | S(p)= 13600 keV 40 | Q(α)= -8432 keV 9 | ||
| Reference: 2021WA16 |
| References: | |||
| A | 123Ag β- decay | B | 252Cf SF decay |
| C | 9Be(238U,xγ) | ||
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
| 0.0 | A | 3/2(+) | 2.10 s 3 % β- = 100 | |||||
| 116.40 3 | A | (1/2+) | 116.41 3 | 100 | [M1,E2] | 0.0 | 3/2(+) | |
| 144 4 | ABC | 11/2(-) | 1.80 s 3 % β- = 100 | |||||
| 263.867 20 | A | (7/2+) | 80 ns 15 | 123.67 6 ? 263.87 2 | 16.0 10 100.0 8 | [M2] [E2] | 144 0.0 | 11/2(-) 3/2(+) |
| 409.76 3 | A | (5/2+,7/2+) | 409.79 3 | 100 | 0.0 | 3/2(+) | ||
| 463.78 7 | A | (5/2+) | 347.38 6 | 100 | 116.40 | (1/2+) | ||
| 514.65 5 | A | (9/2+) | 250.78 5 374.00 10 | 40 3 100 4 | 263.867 144 | (7/2+) 11/2(-) | ||
| 553.72 15 | A | (5/2+) | 437.54 20 553.50 20 | 100 12 50 11 | 116.40 0.0 | (1/2+) 3/2(+) | ||
| 591.29 5 | A | (5/2+,7/2+) | 591.30 5 | 100 | 0.0 | 3/2(+) | ||
| 672.44 12 | A | (5/2+) | 556.10 20 672.40 15 | 100 17 50 10 | 116.40 0.0 | (1/2+) 3/2(+) | ||
| 704.92 11 | A | (5/2,7/2,9/2) | 441.05 10 | 100 | 263.867 | (7/2+) | ||
| 743.73 5 | A | (5/2+,7/2+) | 334.05 5 743.40 10 | 29 7 100 8 | 409.76 0.0 | (5/2+,7/2+) 3/2(+) | ||
| 806.7 10 | C | (15/2-) | 666 1 | 100 | 144 | 11/2(-) | ||
| 829.75 20 | A | (9/2+) | 689.10 15 | 100 | 144 | 11/2(-) | ||
| 885.2 3 | A | (5/2,7/2,9/2) | 621.3 3 | 100 | 263.867 | (7/2+) | ||
| 1010.08 16 | A | (5/2,7/2,9/2) | 600.31 15 | 100 | 409.76 | (5/2+,7/2+) | ||
| 1061.44 9 | A | (5/2,7/2,9/2) | 470.19 10 651.58 15 | 88 28 100 24 | 591.29 409.76 | (5/2+,7/2+) (5/2+,7/2+) | ||
| 1528.86 14 | A | (5/2+,7/2+) | 1265.15 15 1528.2 3 | 100 12 85 12 | 263.867 0.0 | (7/2+) 3/2(+) | ||
| 1607.7 15 | C | (19/2-) | 801 1 | 100 | 806.7 | (15/2-) | ||
| 2239.88 20 | A | (5/2+,7/2+,9/2+) | 1976.00 20 | 100 | 263.867 | (7/2+) | ||
| 2377.7 18 | C | (23/2-) | 770 1 | 100 | 1607.7 | (19/2-) | ||
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
| 2601.0 3 | A | (5/2+,7/2+,9/2+) | 2337.10 25 | 100 | 263.867 | (7/2+) | ||
| 2615.7 20 | C | (25/2-) | 238 1 | | 2377.7 | (23/2-) | ||
| 2787.37 18 | A | (5/2+,7/2+,9/2+) | 1725.90 20 2523.5 3 | 100 22 83 22 | 1061.44 263.867 | (5/2,7/2,9/2) (7/2+) | ||
| 2812.7 23 | C | (27/2-) | 197 1 | | 2615.7 | (25/2-) | ||
| 2902.42 22 | A | (5/2+,7/2+) | 2638.40 25 2902.7 4 | 100 21 44 14 | 263.867 0.0 | (7/2+) 3/2(+) | ||
| 2910.22 24 | A | (5/2+,7/2+) | 2646.7 3 2909.5 4 | 100 27 57 14 | 263.867 0.0 | (7/2+) 3/2(+) | ||
| 2968.7 25 | C | (29/2-) | 156 1 | | 2812.7 | (27/2-) | ||
E(level): From a least-squares fit to γ-ray energies
| E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
| Band 1 - Sequence based on 11/2(-) | |||||||
| 144 4 | 11/2(-) | 1.80 s 3 % β- = 100 | |||||
| 806.7 10 | (15/2-) | 666 1 | 100 | 144 | 11/2(-) | ||
| 1607.7 15 | (19/2-) | ||||||
| 2377.7 18 | (23/2-) | 770 1 | 100 | 1607.7 | (19/2-) | ||
| 2615.7 20 | (25/2-) | 238 1 | | 2377.7 | (23/2-) | ||
| 2812.7 23 | (27/2-) | 197 1 | | 2615.7 | (25/2-) | ||
| 2968.7 25 | (29/2-) | 156 1 | | 2812.7 | (27/2-) | ||
| E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) (keV) | Multipolarity | Conversion Coefficient | Additional Data |
| 116.40 | (1/2+) | 116.41 3 | [M1,E2] | 0.6 | α=0.6 3, α(K)=0.47 21, α(L)=0.10 7, α(M)=0.019 13, α(N)=0.0032 21, α(O)=0.00010 4 | |
| 263.867 | (7/2+) | 80 ns 15 | 123.67 6 | [M2] | 2.19 | α=2.19, α(K)=1.81 3, α(L)=0.305 5, α(M)=0.0604 9, α(N)=0.01068 15, α(O)=0.000545 8 |
| (7/2+) | 80 ns 15 | 263.87 2 | [E2] | 0.0498 | B(E2)(W.u.)=0.098 +26-18, α=0.0498, α(K)=0.0419 6, α(L)=0.00638 9, α(M)=0.001240 18, α(N)=0.000214 3, α(O)=8.99E-6 13 |
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
| 0.0 | 3/2(+) | 2.10 s 3 % β- = 100 | Q=+0.042 5 (2013Yo02), μ=+0.7896 6 δ<r2>=-0.028 mb 3(stat) 2(syst), or -0.042 mb 13(stat) 3(syst), for difference between the (11/2-) state and the g.s. (2016Yo01). E(level): δ<r2>=-0.028 mb 3(stat) 2(syst), or -0.042 mb 13(stat) 3(syst), for difference between the (11/2-) state and the g.s. (2016Yo01). |
| 144 | 11/2(-) | 1.80 s 3 % β- = 100 | Q=+0.135 7 (2013Yo02), μ=-1.0015 3 Jπ(level): From γ-decay pattern and shell-model predictions. |
| 806.7 | (15/2-) | Jπ(level): From γ-decay pattern and shell-model predictions. | |
| 1607.7 | (19/2-) | Jπ(level): From γ-decay pattern and shell-model predictions. | |
| 2377.7 | (23/2-) | Jπ(level): From γ-decay pattern and shell-model predictions. | |
| 2615.7 | (25/2-) | Jπ(level): From γ-decay pattern and shell-model predictions. | |
| 2812.7 | (27/2-) | Jπ(level): From γ-decay pattern and shell-model predictions. | |
| 2968.7 | (29/2-) | Jπ(level): From γ-decay pattern and shell-model predictions. |
| E(level) | E(gamma) | Comments |
| 806.7 | 666 | E(γ): From 9Be(238U,Xγ) |
| 1607.7 | 801 | E(γ): From 9Be(238U,Xγ) |
| 2377.7 | 770 | E(γ): From 9Be(238U,Xγ) |
| 2615.7 | 238 | E(γ): From 9Be(238U,Xγ) |
| 2812.7 | 197 | E(γ): From 9Be(238U,Xγ) |
| 2968.7 | 156 | E(γ): From 9Be(238U,Xγ) |
Other measurements:
Mass measurements: 2013Ka08 (isomer, JYFLTRAP), 2012Ha25 (g.s., JYFLTRAP), 2010Br02 (g.s.+isomer unresolved, ISOLTRAP)
Hyperfine structure: 2018Ha30, 2017Ne04, 2016Yo01, 2013Yo02
Structure calculations: 2015Le08, 2015Mi16, 2014Zh02, 2007Na28, 2003Bo06, 1981Al25
124Ag decays by delayed neutrons to 123Cd (1983Re05).
The sequences of high-spin states based on the 11/2(-) isomer from 2002Hw01 via 252Cf SF decay and from 2016Re05 via 9Be(238U,Xγ) are completely different in level and gamma energies. The evaluator has adopted the data from 2016Re05, which are more complete and have more convincing particle identification with γ rays tagged by both α and Z.
Q-value: S(2n)=12483 3, S(2p)=25810 4 (2021Wa16)