ADOPTED LEVELS, GAMMAS for 128Sb
Authors: Zoltan Elekes and Janos Timar | Citation: Nucl. Data Sheets 129, 191 (2015) | Cutoff date: 28-Feb-2015
Full ENSDF file | Adopted Levels (PDF version)
| Q(β-)=4363 keV 19 | S(n)= 6002 keV 20 | S(p)= 8448 keV 22 | Q(α)= -619×101 keV 4 | ||
| Reference: 2012WA38 |
| References: | |||
| A | 128Sn β- decay (59.07 M) | B | 128Sb IT decay (10.4 M) |
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
| 0.0 | AB | 8- | 9.05 h 4 % β- = 100 | |||||
| 0.0+X | AB | 5+ | 10.41 m 18 % β- = 96.4 10 % IT = 3.6 10 | <20.0S | | [E3] | 0.0 | 8- |
| 45.70+X 20 | A | 4+ | 45.7 2 | 100 | M1 | 0.0+X | 5+ | |
| 77.8+X 3 | A | 3+ | 32.1 2 | 100 | M1 | 45.70+X | 4+ | |
| 152.7+X 3 | A | (2+,3+) | 75.1 2 | 100 | M1 | 77.8+X | 3+ | |
| 482.4+X 3 | A | (2,3)+ | 404.4 2 436.7 2 | 100 10 70 10 | 77.8+X 45.70+X | 3+ 4+ | ||
| 635.2+X 3 | A | 1+ | 152.7 2 482.3 2 557.3 2 | 11 1 100 5 28 3 | [M1,E2] | 482.4+X 152.7+X 77.8+X | (2,3)+ (2+,3+) 3+ | |
| 751.6+X? | A | 115.9 2 | 100 | 635.2+X | 1+ | |||
| 833.0+X | A | 1+ | 80.9 2 680.5 1 | 1.1 4 100 11 | 751.6+X 152.7+X | (2+,3+) | ||
E(level): E(levels) are adopted from 128Sn β- decay
| E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) (keV) | Multipolarity | Conversion Coefficient | Additional Data |
| 45.70+X | 4+ | 45.7 2 | M1 | 5.94 | α=5.94 12, α(K)=5.11 10, α(L)=0.665 13, α(M)=0.132 3, α(N)=0.0254 5, α(O)=0.00249 5 | |
| 77.8+X | 3+ | 32.1 2 | M1 | 16.5 | α=16.5 4, α(K)=14.2 3, α(L)=1.89 5, α(M)=0.374 9, α(N)=0.0720 17, α(O)=0.00705 17 | |
| 152.7+X | (2+,3+) | 75.1 2 | M1 | 1.403 | α=1.403 23, α(K)=1.209 20, α(L)=0.1562 25, α(M)=0.0309 5, α(N)=0.00597 10, α(O)=0.000587 10 | |
| 635.2+X | 1+ | 152.7 2 | [M1,E2] | 0.28 | α=0.28 9, α(K)=0.23 7, α(L)=0.043 22, α(M)=0.009 5, α(N)=0.0016 9, α(O)=0.00014 6 |
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
| 0.0+X | 5+ | 10.41 m 18 % β- = 96.4 10 % IT = 3.6 10 | Jπ(level): J(0.0+x) is 5,6,7 from log ft=6.0 of β- decay to 6+. Three-step γ-cascade relation, 557.3γ-32.1γ(M1)-45.7γ(M1) between 635.1+x 1+ and 0.0+x establishes Jπ(0.0+x)=5+, Jπ(45.7+x)=4+, and Jπ(77.8+x)=3+ as the most likely spin sequence. |
| 45.70+X | 4+ | Jπ(level): J(0.0+x) is 5,6,7 from log ft=6.0 of β- decay to 6+. Three-step γ-cascade relation, 557.3γ-32.1γ(M1)-45.7γ(M1) between 635.1+x 1+ and 0.0+x establishes Jπ(0.0+x)=5+, Jπ(45.7+x)=4+, and Jπ(77.8+x)=3+ as the most likely spin sequence. | |
| 77.8+X | 3+ | Jπ(level): J(0.0+x) is 5,6,7 from log ft=6.0 of β- decay to 6+. Three-step γ-cascade relation, 557.3γ-32.1γ(M1)-45.7γ(M1) between 635.1+x 1+ and 0.0+x establishes Jπ(0.0+x)=5+, Jπ(45.7+x)=4+, and Jπ(77.8+x)=3+ as the most likely spin sequence. |
| E(level) | E(gamma) | Comments |
| 45.70+X | 45.7 | M(γ): The multipolarities of 32.1γ, 45.8γ, 75.1γ are limited to M1 from intensity balance at the respective levels and sum peak analysis of Kα| x ray+Kα| x ray, Kα| x ray+45.8γ, Kα| x ray+75.1γ in 128Sn β- decay |
| 77.8+X | 32.1 | M(γ): The multipolarities of 32.1γ, 45.8γ, 75.1γ are limited to M1 from intensity balance at the respective levels and sum peak analysis of Kα| x ray+Kα| x ray, Kα| x ray+45.8γ, Kα| x ray+75.1γ in 128Sn β- decay |
| 152.7+X | 75.1 | M(γ): The multipolarities of 32.1γ, 45.8γ, 75.1γ are limited to M1 from intensity balance at the respective levels and sum peak analysis of Kα| x ray+Kα| x ray, Kα| x ray+45.8γ, Kα| x ray+75.1γ in 128Sn β- decay |
| 751.6+X | 115.9 | E(γ): Placement uncertain. Assumed that 80.9γ precedes 115.9γ |
| 833.0+X | 80.9 | E(γ): Placement uncertain. Assumed that 80.9γ precedes 115.9γ |