ADOPTED LEVELS, GAMMAS for 131Sb
Authors: Yu. Khazov, I. Mitropolsky, A. Rodionov | Citation: Nucl. Data Sheets 107, 2715 (2006) | Cutoff date: 17-Jul-2006
Full ENSDF file | Adopted Levels (PDF version)
| Q(β-)=3229.1 keV 21 | S(n)= 7767 keV 15 | S(p)= 9138 keV 3 | Q(α)= -7509 keV 22 | ||
| Reference: 2012WA38 |
| References: | |||
| A | 131Sn β- decay (56.0 S+58.4 S) | B | 241Pu(n,Fγ) E=THERMAL |
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
| 0.0 | A | (7/2+) | 23.03 m 4 % β- = 100 | |||||
| 798.494 19 | A | (5/2+) | 798.50 2 | 100 | 0.0 | (7/2+) | ||
| 1141.67 14 | A | (3/2+) | 1141.6 2 | 100 | 0.0 | (7/2+) | ||
| 1202.61 14 | A | (5/2+) | 404.5 1202.6 2 | 2.5 100 | 798.494 0.0 | (5/2+) (7/2+) | ||
| 1226.04 3 | AB | (11/2+) | 1226.03 3 | 100 | 0.0 | (7/2+) | ||
| 1229.28 5 | A | (9/2+) | 430.6 6 1229.23 6 | 3.3 17 100 12 | [E2] | 798.494 0.0 | (5/2+) (7/2+) | |
| 1481.15 3 | A | (7/2+) | 251.70 10 682.660 22 1481.12 8 | 38 7 26 8 100 4 | [M1,E2] | 1229.28 798.494 0.0 | (9/2+) (5/2+) (7/2+) | |
| 1676.06 6 | AB | (15/2-) | 91 µs 4 | 447.4 450.03 5 1676.0? | 3.2 100 11 2.8 | E3 M2 [M4] | 1229.28 1226.04 0.0 | (9/2+) (11/2+) (7/2+) |
| 1687.2 9 | B | (19/2-) | 4.3 µs 8 | 11.2 | | 1676.06 | (15/2-) | |
| 1725.9 9 | AB | (17/2-) | 49.83 | 100 | [M1,E2] | 1676.06 | (15/2-) | |
| 1730.6 3 | A | (13/2-) | 54.35 504.6 3 | 100 78 25 | [M1,E2] | 1676.06 1226.04 | (15/2-) (11/2+) | |
| 1758.2 11 | A | 82.29 6 ? | 100 | 1676.06 | (15/2-) | |||
| 1786.9 | A | 583.9? | 100 | 1202.61 | (5/2+) | |||
| 1812.93 13 | A | (11/2-) | 82.29 6 ? 331.7 6 583.5 2 | 404 61 15 8 100 19 | [M1,E2] [M2] | 1730.6 1481.15 1229.28 | (13/2-) (7/2+) (9/2+) | |
| 1861.9 10 | A | 185.83 | 100 | 1676.06 | (15/2-) | |||
| 1867.0 11 | A | 108.8 3 190.73 13 ? | 100 70 8.0E+2 10 | 1758.2 1676.06 | (15/2-) | |||
| 1871.90 12 | A | (5/2,7/2,9/2) | 643.0 669.0 1073.36 12 1872.6 5 | 5.8 5.8 100 17 15 5 | 1229.28 1202.61 798.494 0.0 | (9/2+) (5/2+) (5/2+) (7/2+) | ||
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
| 1889.5 7 | A | 660.2 663.4 | | 1229.28 1226.04 | (9/2+) (11/2+) | |||
| 1916.49 9 | A | (15/2-) | 186.2 190.73 13 ? 240.43 7 | 14.6 123 16 100 16 | 1730.6 1725.9 1676.06 | (13/2-) (17/2-) (15/2-) | ||
| 1918.7 7 | A | 437.9 | 100 | 1481.15 | (7/2+) | |||
| 1931.08 8 | A | (7/2,9/2,11/2) | 118.06 15 701.1 1931.05 8 | 30 8 20 100 22 | 1812.93 1229.28 0.0 | (11/2-) (9/2+) (7/2+) | ||
| 1980.39 7 | A | (13/2-) | 63.82 304.33 3 | 1 100 13 | 1916.49 1676.06 | (15/2-) (15/2-) | ||
| 1997.5 10 | A | 184.6 | | 1812.93 | (11/2-) | |||
| 2004.07 25 | A | 801.63 26 1204.9? 2003.4 5 | 100 22 9 86 22 | 1202.61 798.494 0.0 | (5/2+) (5/2+) (7/2+) | |||
| 2018.7 10 | A | 102.20 | 100 | 1916.49 | (15/2-) | |||
| 2021.4 8 | A | 104.68 208.462 9 ? 291.00 | | 1916.49 1812.93 1730.6 | (15/2-) (11/2-) (13/2-) | |||
| 2036.64 13 | A | 223.711 10 | 100 | 1812.93 | (11/2-) | |||
| 2043.45 8 | A | 62.9 2 285.0 2 ? 367.40 5 | 20 7 40 12 100 15 | 1980.39 1758.2 1676.06 | (13/2-) (15/2-) | |||
| 2069.2 10 | B | (19/2+) | 343.2 382.0 | 100 50 | (E1) | 1725.9 1687.2 | (17/2-) (19/2-) | |
| 2086.2 4 | A | (11/2,13/2) | 155.9 6 410.25 20 ? | 100 36 364 72 | 1931.08 1676.06 | (7/2,9/2,11/2) (15/2-) | ||
| 2165.6 15 | B | (23/2+) | 1.1 µs 2 | 96.4 | | E2 | 2069.2 | (19/2+) |
| 2274.62 20 | A | 793.5 2 1071.9? 1475.80 2274.22 | 88 29 38 100 | 1481.15 1202.61 798.494 0.0 | (7/2+) (5/2+) (5/2+) (7/2+) | |||
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
| 2392.11 18 | A | (1/2+) | 388.1 520.3 911.0 1189.0 1250.7 7 1593.6 2 2392.2 | 41 17 100 24 | 2004.07 1871.90 1481.15 1202.61 1141.67 798.494 0.0 | (5/2,7/2,9/2) (7/2+) (5/2+) (3/2+) (5/2+) (7/2+) | ||
| 2453.70 20 ? | A | 410.25 20 ? | 100 | 2043.45 | ||||
| 2561.14 24 | A | 1419.6 1762.60 25 2561.6 | 10 100 10 | 1141.67 798.494 0.0 | (3/2+) (5/2+) (7/2+) | |||
| 2663.57 14 | A | 904.6 7 ? 1182.4 2 2663.21 | 24 8 100 24 69 | 1758.2 1481.15 0.0 | (7/2+) (7/2+) | |||
| 2861.2 5 | A | 774.70 16 ? | 100 | 2086.2 | (11/2,13/2) | |||
| 2865.47 10 | A | (11/2,13/2,15/2) | 885.08 7 1188.70 1639.7 5 | 100 14 21 18 5 | 1980.39 1676.06 1226.04 | (13/2-) (15/2-) (11/2+) | ||
| 2916.3 4 | A | 999.8 3 | 100 | 1916.49 | (15/2-) | |||
| 2938.1 6 | A | 546.3 1065.9 1736.6? 2139.54 | 40 23 100 | 2392.11 1871.90 1202.61 798.494 | (1/2+) (5/2,7/2,9/2) (5/2+) (5/2+) | |||
| 2953.56 17 | A | 1022.1 2 1724.90 26 | 100 25 68 18 | 1931.08 1229.28 | (7/2,9/2,11/2) (9/2+) | |||
| 2978.01 12 | A | (3/2,5/2,7/2) | 314.45 13 703.5? 1059.7 1496.4 3 1775.60 18 1836.31 16 2179.59 2977.7 4 | 58 13 35 46 7 81 17 75 19 100 25 7 | 2663.57 2274.62 1918.7 1481.15 1202.61 1141.67 798.494 0.0 | (7/2+) (5/2+) (3/2+) (5/2+) (7/2+) | ||
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
| 2984.35 18 | A | 320.75 12 898.5 4 2186.4 2 ? | 100 18 41 15 118 30 | 2663.57 2086.2 798.494 | (11/2,13/2) (5/2+) | |||
| 3060.9 5 | A | 1918.85 50 2264 | 100 50 | 1141.67 798.494 | (3/2+) (5/2+) | |||
| 3074.51 23 | A | 1202.6 2 | 100 | 1871.90 | (5/2,7/2,9/2) | |||
| 3121.33 19 | A | 260.15 40 1141.2 2 1894.25 40 | 40 20 100 20 88 20 | 2861.2 1980.39 1226.04 | (13/2-) (11/2+) | |||
| 3258.58 18 | A | 1391.61 2029.30 17 2032.0 | 41 100 19 37 | 1867.0 1229.28 1226.04 | (9/2+) (11/2+) | |||
| 3268.61 14 | A | (5/2,7/2,9/2) | 208.462 9 ? 1787.47 18 2039.25 25 2470.5 4 3267.5 7 | 32 12 100 19 95 23 75 19 75 19 | 3060.9 1481.15 1229.28 798.494 0.0 | (7/2+) (9/2+) (5/2+) (7/2+) | ||
| 3308.45 14 | A | 1328.03 18 1391.61 2082.45 20 | 70 13 47 100 26 | 1980.39 1916.49 1226.04 | (13/2-) (15/2-) (11/2+) | |||
| 3367.5 3 | A | 383.2 3 2568.93 3367.0 8 | 76 18 41 100 24 | 2984.35 798.494 0.0 | (5/2+) (7/2+) | |||
| 3411.91 20 | A | (9/2) | 1736.5 7 2186.4 2 ? 2208.95 20 2614.4 4 3412.3 9 | 29 15 118 30 100 30 76 24 29 10 | 1676.06 1226.04 1202.61 798.494 0.0 | (15/2-) (11/2+) (5/2+) (5/2+) (7/2+) | ||
| 3539.1 10 | A | 3539.0 | 100 | 0.0 | (7/2+) | |||
| 3568.7 10 | A | 3568.6 | 100 | 0.0 | (7/2+) | |||
Jπ(level): All spin and parity assignments are based on shell-model 131Sn decay (56.0 s+58.4 s) data set for additional suggested assignments.
| E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
| Band 1 - Configuration=(130Sn 2+)#(π,g7/2) | |||||||
| 1141.67 14 | (3/2+) | ||||||
| 1202.61 14 | (5/2+) | 404.5 1202.6 2 | 2.5 100 | 798.494 0.0 | (5/2+) (7/2+) | ||
| 1226.04 3 | (11/2+) | 1226.03 3 | 100 | 0.0 | (7/2+) | ||
| 1229.28 5 | (9/2+) | 430.6 6 1229.23 6 | 3.3 17 100 12 | [E2] | 798.494 0.0 | (5/2+) (7/2+) | |
| 1481.15 3 | (7/2+) | 251.70 10 682.660 22 1481.12 8 | 38 7 26 8 100 4 | [M1,E2] | 1229.28 798.494 0.0 | (9/2+) (5/2+) (7/2+) | |
| E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
| Band 2 - Configuration=(130Sn 7-)#(π,g7/2) | |||||||
| 1676.06 6 | (15/2-) | 91 µs 4 | |||||
| 1725.9 9 | (17/2-) | 49.83 | 100 | [M1,E2] | 1676.06 | (15/2-) | |
| 1730.6 3 | (13/2-) | 54.35 504.6 3 | 100 78 25 | [M1,E2] | 1676.06 1226.04 | (15/2-) (11/2+) | |
| 1812.93 13 | (11/2-) | 82.29 6 ? 331.7 6 583.5 2 | 404 61 15 8 100 19 | [M1,E2] [M2] | 1730.6 1481.15 1229.28 | (13/2-) (7/2+) (9/2+) | |
| E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) (keV) | Multipolarity | Conversion Coefficient | Additional Data |
| 1229.28 | (9/2+) | 430.6 6 | [E2] | 0.01198 | α=0.01198 | |
| 1481.15 | (7/2+) | 251.70 10 | [M1,E2] | 0.058 | α=0.058 9 | |
| 1676.06 | (15/2-) | 91 µs 4 | 447.4 | E3 | 0.0321 | B(E3)(W.u.)=0.106 12, α=0.0321 |
| (15/2-) | 91 µs 4 | 450.03 5 | M2 | 0.0387 | B(M2)(W.u.)=0.00065 11, α=0.0387 | |
| (15/2-) | 91 µs 4 | 1676.0 | [M4] | 0.00343 | B(M4)(W.u.)=33 4, α=0.00343 | |
| 1687.2 | (19/2-) | 4.3 µs 8 | 11.2 | B(E2)(W.u.)=0.99 18 (<a href= "http://www.nndc.bnl.gov/nsr/nsrlink.jsp?2000Ge18 ">2000Ge18</a>) | ||
| 1725.9 | (17/2-) | 49.83 | [M1,E2] | 12 | α=12 8 | |
| 1730.6 | (13/2-) | 54.35 | [M1,E2] | 9 | α=9 6 | |
| 1812.93 | (11/2-) | 82.29 6 | [M1,E2] | 2.2 | α=2.2 11 | |
| (11/2-) | 331.7 6 | [M2] | 0.0993 | α=0.0993 | ||
| 2069.2 | (19/2+) | 343.2 | (E1) | 0.00635 | α=0.00635 | |
| 2165.6 | (23/2+) | 1.1 µs 2 | 96.4 | E2 | 1.88 | B(E2)(W.u.)=0.54 11, α=1.88 |
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
| 0.0 | (7/2+) | 23.03 m 4 % β- = 100 | Single-particle state (π g7/2) (1981ScZL). |
| 798.494 | (5/2+) | Single-particle state (π d5/2) (1981ScZL). | |
| 1141.67 | (3/2+) | E(level): Configuration=(130Sn 2+)#(π,g7/2). | |
| 1202.61 | (5/2+) | E(level): Configuration=(130Sn 2+)#(π,g7/2). | |
| 1226.04 | (11/2+) | E(level): Configuration=(130Sn 2+)#(π,g7/2). | |
| 1229.28 | (9/2+) | E(level): Configuration=(130Sn 2+)#(π,g7/2). E(level): Configuration=(130Sn 2+)#(π,g7/2). | |
| 1481.15 | (7/2+) | E(level): Configuration=(130Sn 2+)#(π,g7/2). | |
| 1676.06 | (15/2-) | 91 µs 4 | E(level): Configuration=(130Sn 7-)#(π,g7/2). |
| 1687.2 | (19/2-) | 4.3 µs 8 | Configuration=πg7/2ν(h11/2-1d3/2-1) (2000Ge18). |
| 1725.9 | (17/2-) | E(level): Configuration=(130Sn 7-)#(π,g7/2). | |
| 1730.6 | (13/2-) | E(level): Configuration=(130Sn 7-)#(π,g7/2). | |
| 1812.93 | (11/2-) | E(level): Configuration=(130Sn 7-)#(π,g7/2). | |
| 1931.08 | (7/2,9/2,11/2) | Jπ=(9/2+) from systematics of low-spin parity states in odd-mass Sb isotopes (1988StZQ). Jπ(level): From γ-deexcitation pattern assuming mult.=d,Q. | |
| 2086.2 | (11/2,13/2) | Jπ(level): From γ-deexcitation pattern assuming mult.=d,Q. | |
| 2865.47 | (11/2,13/2,15/2) | Jπ(level): From γ-deexcitation pattern assuming mult.=d,Q. |
| E(level) | E(gamma) | Comments |
| 1141.67 | 1141.6 | E(γ): Multiply placed with intensity suitably divided I(γ): Multiply placed with intensity suitably divided |
| 1202.61 | 1202.6 | E(γ): Multiply placed with intensity suitably divided I(γ): Multiply placed with intensity suitably divided |
| 1226.04 | 1226.03 | E(γ): 1226.4 (2000Ge18) |
| 1687.2 | 11.2 | E(γ): γ, ce not observed; transition was introduced (2000Ge18) on the basis of γ1226.4 time measurements |
| 1758.2 | 82.29 | E(γ): Multiply placed with undivided intensity I(γ): Multiply placed with undivided intensity |
| 1812.93 | 82.29 | E(γ): Multiply placed with undivided intensity I(γ): Multiply placed with undivided intensity |
| 1867.0 | 190.73 | E(γ): Multiply placed with undivided intensity I(γ): Multiply placed with undivided intensity |
| 1916.49 | 190.73 | E(γ): Multiply placed with undivided intensity I(γ): Multiply placed with undivided intensity |
| 2021.4 | 208.462 | E(γ): Multiply placed with undivided intensity I(γ): Multiply placed with undivided intensity |
| 2086.2 | 410.25 | E(γ): Multiply placed with undivided intensity I(γ): Multiply placed with undivided intensity |
| 2274.62 | 1071.9 | E(γ): Placement from 1995St28 |
| 2392.11 | 388.1 | E(γ): Placement from 1995St28 | 1189.0 | E(γ): Placement from 1995St28 |
| 2453.70 | 410.25 | E(γ): Multiply placed with undivided intensity I(γ): Multiply placed with undivided intensity |
| 2938.1 | 1736.6 | E(γ): Placement from 1995St28 |
| 2953.56 | 1724.90 | E(γ): poor fit: level-energy difference=1724.28 17 |
| 2978.01 | 703.5 | E(γ): Placement from 1995St28 |
| 2984.35 | 2186.4 | E(γ): Multiply placed with undivided intensity I(γ): Multiply placed with undivided intensity |
| 3074.51 | 1202.6 | E(γ): Multiply placed with intensity suitably divided I(γ): Multiply placed with intensity suitably divided |
| 3121.33 | 1141.2 | E(γ): Multiply placed with intensity suitably divided I(γ): Multiply placed with intensity suitably divided | 1894.25 | E(γ): poor fit: level-energy difference=1894.30 19 |
| 3258.58 | 1391.61 | E(γ): Multiply placed with undivided intensity I(γ): Multiply placed with undivided intensity |
| 3268.61 | 208.462 | E(γ): Multiply placed with undivided intensity I(γ): Multiply placed with undivided intensity |
| 3308.45 | 1391.61 | E(γ): Multiply placed with undivided intensity I(γ): Multiply placed with undivided intensity |
| 3411.91 | 2186.4 | E(γ): Multiply placed with undivided intensity I(γ): Multiply placed with undivided intensity | 2614.4 | E(γ): poor fit: level-energy difference=2613.42 20 |
| E(level) | E(gamma) | Comments |
Levels: Possible existence of a high-spin 16.7-min isomer in 131Sb was proposed by 1988Go19 on the basis of observation of 434γ and 657γ. In a subsequent erratum, the authors retracted this claim because the same two γ rays had earlier been assigned to 129Sb isomer by 1982Hu09, although, 1987St23 did not report these two γ rays from the decay of 129Sb isomer. The origin of the two γ rays seen by 1988Go19 remains uncertain
Q-value: Note: Current evaluation has used the following Q record 3221 21 7768 27 9138 23 -7430 40 2003Au03