ADOPTED LEVELS, GAMMAS for 137I
Authors: E. Browne, J. K. Tuli | Citation: Nucl. Data Sheets 108,2173 (2007) | Cutoff date: 1-Oct-2006
Full ENSDF file | Adopted Levels (PDF version)
| Q(β-)=6027 keV 9 | S(n)= 4882 keV 17 | S(p)= 9219 keV 9 | Q(α)= 141 keV 9 | ||
| Reference: 2012WA38 |
| References: | |||
| A | 137Te β- decay | B | 248Cm SF decay |
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
| 0.0 | AB | (7/2+) | 24.5 s 2 % β- = 100 % β-n = 7.14 23 | |||||
| 243.3 | AB | 5/2+ | 243.3 | 100 | 0.0 | (7/2+) | ||
| 554.20 9 | B | 9/2+ | 554.2 1 | 100 | M1+E2 | 0.0 | (7/2+) | |
| 620.51 9 | B | 11/2+ | 620.5 1 | 100 | E2 | 0.0 | (7/2+) | |
| 954.39 10 | B | 13/2+ | 333.9 1 400.2 1 | 26.6 16 100 4 | M1+E2 E2 | 620.51 554.20 | 11/2+ 9/2+ | |
| 1108.74 11 | B | 15/2+ | 154.4 1 488.2 1 | 100 | E2 | 954.39 620.51 | 13/2+ 11/2+ | |
| 1312.82 12 | B | 17/2+ | 204.1 1 358.4 1 | 100 | E2 | 1108.74 954.39 | 15/2+ 13/2+ | |
| 1608.64 13 | B | 19/2+ | 295.8 1 499.9 1 | 100.0 11 14 5 | 1312.82 1108.74 | 17/2+ 15/2+ | ||
| 2037.70 13 | B | 21/2+ | 429.1 1 724.9 1 | 3.6 9 100 9 | E2 | 1608.64 1312.82 | 19/2+ 17/2+ | |
| 2222.99 14 | B | 23/2+ | 185.3 1 614.3 1 | 51.4 15 100 15 | 2037.70 1608.64 | 21/2+ 19/2+ | ||
| 2742.66 15 | B | 25/2+ | 519.6 1 705.0 1 | 30 5 100 5 | 2222.99 2037.70 | 23/2+ 21/2+ | ||
| 3084.87 16 | B | 27/2+ | 342.3 1 861.9 1 | 8.3 17 100 6 | 2742.66 2222.99 | 25/2+ 23/2+ | ||
| 3166.98 17 | B | 29/2+ | 424.2 1 | 100 | 2742.66 | 25/2+ | ||
| 3651.45 17 | B | (31/2+) | 484.4 1 566.7 1 | 100 | 3166.98 3084.87 | 29/2+ 27/2+ | ||
| 3852.82 19 | B | (33/2+) | 201.4 1 | 100 | 3651.45 | (31/2+) | ||
E(level): From least-squares fit to Eγ’s
Jπ(level): From γγ(θ), directional-polarization correlation, γ(pol). The level structure is interpreted in terms of 136Te core excitations coupled with 7/2+ gs and 5/2+ 243 levels (2001Ko78)
| E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
| Band 1 - ΔJ=2 cascade band based on (7/2+) GS | |||||||
| 620.51 9 | 11/2+ | ||||||
| 1108.74 11 | 15/2+ | 154.4 1 488.2 1 | 100 | E2 | 954.39 620.51 | 13/2+ 11/2+ | |
| 1608.64 13 | 19/2+ | 295.8 1 499.9 1 | 100.0 11 14 5 | 1312.82 1108.74 | 17/2+ 15/2+ | ||
| 2222.99 14 | 23/2+ | 185.3 1 614.3 1 | 51.4 15 100 15 | 2037.70 1608.64 | 21/2+ 19/2+ | ||
| 3084.87 16 | 27/2+ | 342.3 1 861.9 1 | 8.3 17 100 6 | 2742.66 2222.99 | 25/2+ 23/2+ | ||
| 3651.45 17 | (31/2+) | 484.4 1 566.7 1 | 100 | 3166.98 3084.87 | 29/2+ 27/2+ | ||
| E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
| Band 2 - ΔJ=2 cascade band based on (9/2+) 554.2 level | |||||||
| 554.20 9 | 9/2+ | ||||||
| 954.39 10 | 13/2+ | 333.9 1 400.2 1 | 26.6 16 100 4 | M1+E2 E2 | 620.51 554.20 | 11/2+ 9/2+ | |
| 1312.82 12 | 17/2+ | 204.1 1 358.4 1 | 100 | E2 | 1108.74 954.39 | 15/2+ 13/2+ | |
| 2037.70 13 | 21/2+ | 429.1 1 724.9 1 | 3.6 9 100 9 | E2 | 1608.64 1312.82 | 19/2+ 17/2+ | |
| 2742.66 15 | 25/2+ | 519.6 1 705.0 1 | 30 5 100 5 | 2222.99 2037.70 | 23/2+ 21/2+ | ||
| 3166.98 17 | 29/2+ | 424.2 1 | 100 | 2742.66 | 25/2+ | ||
| 3852.82 19 | (33/2+) | 201.4 1 | 100 | 3651.45 | (31/2+) | ||
| E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) (keV) | Multipolarity | Mixing Ratio |
| 554.20 | 9/2+ | 554.2 1 | M1+E2 | +1.1 6 | |
| 954.39 | 13/2+ | 333.9 1 | M1+E2 | +0.08 3 |
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
| 0.0 | (7/2+) | 24.5 s 2 % β- = 100 % β-n = 7.14 23 | %β-n from 1993Ru01. Other: 6.97 42 (1989BrZI) from 1989BrZI. E(level): %β-n from 1993Ru01. Other: 6.97 42 (1989BrZI) from 1989BrZI. |
| 554.20 | 9/2+ | E(level): ΔJ=2 cascade band based on (9/2+) 554.2 level. | |
| 620.51 | 11/2+ | E(level): ΔJ=2 cascade band based on (7/2+) GS. | |
| 954.39 | 13/2+ | E(level): ΔJ=2 cascade band based on (9/2+) 554.2 level. | |
| 1108.74 | 15/2+ | E(level): ΔJ=2 cascade band based on (7/2+) GS. | |
| 1312.82 | 17/2+ | E(level): ΔJ=2 cascade band based on (9/2+) 554.2 level. | |
| 1608.64 | 19/2+ | E(level): ΔJ=2 cascade band based on (7/2+) GS. | |
| 2037.70 | 21/2+ | E(level): ΔJ=2 cascade band based on (9/2+) 554.2 level. | |
| 2222.99 | 23/2+ | E(level): ΔJ=2 cascade band based on (7/2+) GS. | |
| 2742.66 | 25/2+ | E(level): ΔJ=2 cascade band based on (9/2+) 554.2 level. | |
| 3084.87 | 27/2+ | E(level): ΔJ=2 cascade band based on (7/2+) GS. | |
| 3166.98 | 29/2+ | E(level): ΔJ=2 cascade band based on (9/2+) 554.2 level. | |
| 3651.45 | (31/2+) | E(level): ΔJ=2 cascade band based on (7/2+) GS. | |
| 3852.82 | (33/2+) | E(level): ΔJ=2 cascade band based on (9/2+) 554.2 level. |
235U, 239Pu n-induced fission yields: 2006Ro26, 2002Is13
238U n-, p-induced fission yields: 2000Lh02
235U fission yield: 1988Le21
β-n Spectrum: measured neutrons (1997Gr20)
Q-value: Note: Current evaluation has used the following Q record 5880 3 5070 609370 5010 40 2003Au03
Q-value: Q(β-n)=1851 27 (syst,2003Au03)