ADOPTED LEVELS, GAMMAS for 81Ge
Author: Coral M. Baglin | Citation: Nucl. Data Sheets 109, 2257 (2008) | Cutoff date: 15-Aug-2008
Full ENSDF file | Adopted Levels (PDF version)
Q(β-)=6242 keV 4 | S(n)= 4828 keV 3 | S(p)= 14357 keV 4 | Q(α)= -9927 keV 3 | ||
Reference: 2012WA38 |
References: | |||
A | 81Ga β- decay | B | 82Ga β-n decay |
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
0 | AB | (9/2+) | 7.6 s 6 % β- = 100 | |||||
679.14 4 | AB | (1/2+) | 7.6 s 6 % β- = 100 | |||||
711.207 23 | AB | (5/2+) | 3.9 ns 2 | 711.19 3 | 100 | [E2] | 0 | (9/2+) |
895.63 4 | AB | (1/2-) | < 0.5 ns | 216.47 3 | 100 | E1 | 679.14 | (1/2+) |
1241.44 3 | AB | (1/2+,3/2,5/2+) | 530.22 4 562.37 5 | 100 5 16.5 8 | 711.207 679.14 | (5/2+) (1/2+) | ||
1286.466 23 | A | (5/2+,7/2-) | 1286.39 3 | 100 | 0 | (9/2+) | ||
1303.23 3 | A | (5/2+,7/2,9/2+) | 1303.24 3 | 100 | 0 | (9/2+) | ||
1409.93 4 | A | 698.69 3 | 100 | 711.207 | (5/2+) | |||
1548.504 24 | A | (5/2+,7/2,9/2+) | 262.03 4 1548.51 3 | 5.8 4 100 4 | 1286.466 0 | (5/2+,7/2-) (9/2+) | ||
1577.02 11 | A | 865.81 10 | 100 | 711.207 | (5/2+) | |||
1723.97 3 | A | (3/2-,5/2-) | 437.42 4 482.51 3 828.26 5 | 0.75 5 15.1 8 100 5 | 1286.466 1241.44 895.63 | (5/2+,7/2-) (1/2+,3/2,5/2+) (1/2-) | ||
1731.04 4 | A | (5/2+,7/2,9/2+) | 1019.80 4 1730.95 7 | 100 5 22.3 12 | 711.207 0 | (5/2+) (9/2+) | ||
1805.54 7 | A | (5/2+,7/2,9/2+) | 256.6 3 501.90 17 1805.61 7 | 35 7 73 8 100 6 | 1548.504 1303.23 0 | (5/2+,7/2,9/2+) (5/2+,7/2,9/2+) (9/2+) | ||
1816.23 5 | A | (3/2-) | 574.83 5 920.7 3 1104.93 9 1137.07 4 | 100 7 13 4 49 4 79 4 | 1241.44 895.63 711.207 679.14 | (1/2+,3/2,5/2+) (1/2-) (5/2+) (1/2+) | ||
1832.23 4 | A | (3/2,5/2-) | 936.62 4 | 100 | 895.63 | (1/2-) | ||
1855.34 5 | A | 613.89 4 1144 | 100 8 62 | 1241.44 711.207 | (1/2+,3/2,5/2+) (5/2+) | |||
2138.38 4 | A | (5/2+,7/2,9/2+) | 728.32 6 2138.39 5 | 42 4 100 5 | 1409.93 0 | (9/2+) | ||
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
2174.87 7 | A | 626.36 6 933 | 100 8 83 | 1548.504 1241.44 | (5/2+,7/2,9/2+) (1/2+,3/2,5/2+) | |||
2419.90 4 | A | 1116.63 5 2419.94 15 | 100 6 63 5 | 1303.23 0 | (5/2+,7/2,9/2+) (9/2+) | |||
2529.30 5 | A | (3/2,5/2-) | 805.32 5 1633.47 9 1818.15 7 | 85 4 100 6 22.1 17 | 1723.97 895.63 711.207 | (3/2-,5/2-) (1/2-) (5/2+) | ||
2549.97 11 | A | (5/2+,7/2,9/2+) | 2549.93 11 | 100 | 0 | (9/2+) | ||
2563.18 5 | A | (3/2,5/2-) | 730.84 5 1667.61 6 1852.37 15 | 98 5 100 5 57 5 | 1832.23 895.63 711.207 | (3/2,5/2-) (1/2-) (5/2+) | ||
2693.67 10 | A | 962.64 11 1982.4 2 | 100 6 65 9 | 1731.04 711.207 | (5/2+,7/2,9/2+) (5/2+) | |||
2996.71 3 | A | (3/2-,5/2-,7/2-) | 1164.53 3 1272.71 3 1448.25 7 1710.2 2 | 19.4 11 100 5 7.6 5 11 4 | 1832.23 1723.97 1548.504 1286.466 | (3/2,5/2-) (3/2-,5/2-) (5/2+,7/2,9/2+) (5/2+,7/2-) | ||
3021.39 6 | A | (3/2,5/2-) | 1189.16 6 2125.69 11 2311.14 | 57 3 100 6 18 | 1832.23 895.63 711.207 | (3/2,5/2-) (1/2-) (5/2+) | ||
3129.05 5 | A | (3/2,5/2,7/2) | 1405.07 4 | 100 | 1723.97 | (3/2-,5/2-) | ||
3437.23 4 | A | (3/2-,5/2-) | 1604.93 7 1713.26 4 2541.39 11 2726.11 9 | 14.4 8 100 4 19.0 14 27.1 14 | 1832.23 1723.97 895.63 711.207 | (3/2,5/2-) (3/2-,5/2-) (1/2-) (5/2+) | ||
3503.08 4 | A | (7/2-) | 1083.22 6 1671.4 4 1779.05 3 1955.61 2216.24 15 2792.02 12 3503.24 8 | 25.2 14 3.9 9 58 3 17 16.8 14 20.6 17 100 6 | 2419.90 1832.23 1723.97 1548.504 1286.466 711.207 0 | (3/2,5/2-) (3/2-,5/2-) (5/2+,7/2,9/2+) (5/2+,7/2-) (5/2+) (9/2+) | ||
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
3665.56 8 | A | (7/2-) | 2116.6 2 2379.0 4 2955.0 2 3665.54 8 | 23 3 51 10 43 5 100 4 | 1548.504 1286.466 711.207 0 | (5/2+,7/2,9/2+) (5/2+,7/2-) (5/2+) (9/2+) | ||
3697.95 10 | A | (7/2) | 2986.4 2 3697.95 11 | 84 10 100 6 | 711.207 0 | (5/2+) (9/2+) | ||
3772.88 4 | A | (7/2-) | 776.21 4 1352.87 7 1940.97 6 1955.61 2041.62 9 2362.91 14 3773.08 18 | 100 6 97 6 84 4 29 43 3 41 4 55 5 | 2996.71 2419.90 1832.23 1816.23 1731.04 1409.93 0 | (3/2-,5/2-,7/2-) (3/2,5/2-) (3/2-) (5/2+,7/2,9/2+) (9/2+) | ||
3820.15 19 | A | (3/2,5/2,7/2) | 2095.6 5 2271.7 2 | 54 18 100 10 | 1723.97 1548.504 | (3/2-,5/2-) (5/2+,7/2,9/2+) | ||
4012.91 4 | A | (3/2-,5/2-,7/2-) | 991.06 7 1016.42 14 1483.45 12 1874.36 9 2180.66 4 2281.72 11 2288.58 14 2436.54 15 2464.67 12 2771.85 16 | 27.0 18 37 4 11.6 7 43.6 24 100 6 37.9 21 29.6 15 19.4 13 28.7 21 13.1 13 | 3021.39 2996.71 2529.30 2138.38 1832.23 1731.04 1723.97 1577.02 1548.504 1241.44 | (3/2,5/2-) (3/2-,5/2-,7/2-) (3/2,5/2-) (5/2+,7/2,9/2+) (3/2,5/2-) (5/2+,7/2,9/2+) (3/2-,5/2-) (5/2+,7/2,9/2+) (1/2+,3/2,5/2+) | ||
4035.31 7 | A | (7/2-) | 2311.14 19 4035.20 7 | 18 100 7 | 1723.97 0 | (3/2-,5/2-) (9/2+) | ||
4168.17 5 | A | (3/2-) | 2335.75 13 2444.15 4 2881.6 3 2926.4 3 3272.82 17 3489.01 10 | 8.5 6 100 3 6.2 11 2.9 6 2.3 3 7.8 5 | 1832.23 1723.97 1286.466 1241.44 895.63 679.14 | (3/2,5/2-) (3/2-,5/2-) (5/2+,7/2-) (1/2+,3/2,5/2+) (1/2-) (1/2+) | ||
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
4276.77 16 | A | (3/2,5/2,7/2) | 2552.76 15 | 100 | 1723.97 | (3/2-,5/2-) | ||
4470.53 20 | A | (7/2-) | 2922 4470.4 2 | 9 100 7 | 1548.504 0 | (5/2+,7/2,9/2+) (9/2+) |
E(level): From least-squares fit to Eγ, omitting Eγ for uncertain or doubly-placed lines and for lines whose Eγ deviates from least-squares adjusted value by at least 3σ (991γ, 1941γ, 2436γ and 2955γ).
T1/2(level): From 81Ga β- decay (1981Ho24).
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) (keV) | Multipolarity | Conversion Coefficient | Additional Data |
711.207 | (5/2+) | 3.9 ns 2 | 711.19 3 | [E2] | 8.24×10-4 | B(E2)(W.u.)=0.0383 20, α=8.24E-4 |
895.63 | (1/2-) | < 0.5 ns | 216.47 3 | E1 | 0.00692 | B(E1)(W.u.)>7.1E-5, α=0.00692 |
Additional Level Data and Comments:
E(level) | Jπ(level) | T1/2(level) | Comments |
0 | (9/2+) | 7.6 s 6 % β- = 100 | T1/2(level): Following 1981Ho24, the evaluator adopts identical T1/2 for the g.s. and the isomeric state, since 1981Ho24 were unable to distinguish between two similar half-lives in their α=81 multispectrum analysis. Presumably other authors’ data also refer to mixtures of the g.s. and isomeric state. Those data are 10.1 s 8 (1972De43), 8.8 s 11 (1974KrZG), 7.8 s 2 (1981ZeZY). |
679.14 | (1/2+) | 7.6 s 6 % β- = 100 | %IT<1 (1981Ho24). E(level): %IT<1 (1981Ho24). Jπ(level): 1/2- is expected, based on systematics of Jπ(isomeric state) in other odd-mass n=49 isotones. However, if Jπ=1/2-, B(M4)(W.u.)<1.4 (low cf. values ranging from 7.0 5 to 19 1 for seven known M4 transitions between 1/2- and 9/2+ states (1979En04)). Therefore, 1981Ho24 presume that the 679 level is the 1/2+ level also expected at low energy (based on level energy systematics), and that the 1/2- state is the 896 level which deexcites via an E1 transition to the 679 level. T1/2(level): Following 1981Ho24, the evaluator adopts identical T1/2 for the g.s. and the isomeric state, since 1981Ho24 were unable to distinguish between two similar half-lives in their α=81 multispectrum analysis. Presumably other authors’ data also refer to mixtures of the g.s. and isomeric state. Those data are 10.1 s 8 (1972De43), 8.8 s 11 (1974KrZG), 7.8 s 2 (1981ZeZY). |
E(level) | E(gamma) | Comments |
711.207 | 711.19 | M(γ): d or E2 from RUL |
895.63 | 216.47 | M(γ): from α(K)exp, 81Ga β- decay. |
3021.39 | 2311.14 | E(γ): 2311.14 19 for doublet.. Multiply placed with intensity suitably divided I(γ): Multiply placed with intensity suitably divided |
3503.08 | 1955.61 | E(γ): 1955.61 7 for doublet.. Multiply placed with intensity suitably divided I(γ): Multiply placed with intensity suitably divided |
3665.56 | 2955.0 | E(γ): Eγ lies at least 3σ from least-squares adjusted value; datum excluded from least-squares level energy adjustment. |
3772.88 | 1940.97 | E(γ): Eγ lies at least 3σ from least-squares adjusted value; datum excluded from least-squares level energy adjustment. | 1955.61 | E(γ): 1955.61 7 for doublet.. Multiply placed with intensity suitably divided I(γ): Multiply placed with intensity suitably divided |
4012.91 | 991.06 | E(γ): Eγ lies at least 3σ from least-squares adjusted value; datum excluded from least-squares level energy adjustment. | 2436.54 | E(γ): Eγ lies at least 3σ from least-squares adjusted value; datum excluded from least-squares level energy adjustment. |
4035.31 | 2311.14 | E(γ): Multiply placed with intensity suitably divided I(γ): Multiply placed with intensity suitably divided |