ADOPTED LEVELS, GAMMAS for 138I
Author: Jun Chen | Citation: Nucl. Data Sheets 146, 1 (2017) | Cutoff date: 30-Sep-2017
Full ENSDF file | Adopted Levels (PDF version)
Q(β-)=7992 keV 7 | S(n)= 3695 keV 10 | S(p)= 9965 keV 6 | Q(α)= -384 keV 6 | ||
Reference: 2017WA10 |
References: | |||
A | 248Cm SF decay |
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
0.0 | A | (1-) | 6.26 s 3 % β- = 100 % β-n = 5.44 20 | |||||
67.9 3 ? | A | (3-) | 1.26 µs 16 % IT = 100 | 67.9? | | E2 | 0.0 | (1-) |
186.2 5 | A | (4-) | 118.3 | 100 | 67.9 | (3-) | ||
222.3 4 | A | (4-) | 154.6 | 100 | 67.9 | (3-) | ||
229.2 4 | A | (5-) | 43.5? 161.1 | 71 36 100 29 | 186.2 67.9 | (4-) (3-) | ||
297.4 5 | A | (6-) | 68.2 | 100 | M1+E2 | 229.2 | (5-) | |
362.9 6 | A | (7-) | 65.6 | 100 | M1+E2 | 297.4 | (6-) | |
722.9 6 | A | (8-) | 360.1 425.5 | 100 13 62 10 | (M1+E2) (E2) | 362.9 297.4 | (7-) (6-) | |
994.1 6 | A | (9-) | 271.4 631.1 | 38 8 100 14 | (M1+E2) (E2) | 722.9 362.9 | (8-) (7-) | |
1303.7 6 | A | (10-) | 309.4 580.6 | 44 11 100 17 | (M1+E2) (E2) | 994.1 722.9 | (9-) (8-) | |
1577.3 6 | A | (11-) | 273.7 583.6 | 24 6 100 18 | (M1+E2) (E2) | 1303.7 994.1 | (10-) (9-) | |
1828.6 7 | A | (12-) | 251.8 524.5 | 100 12 3 | (M1+E2) (E2) | 1577.3 1303.7 | (11-) (10-) |
E(level): From a least-squares fit to γ-ray energies, assuming an uncertainty of 0.3 keV for each γ ray.
Jπ(level): From 2007Rz01, based on deduced γ-ray multipolarities and band structure, unless otherwise noted.
M(γ): From 2007Rz01 based on band assignments and γγ(θ) data, which are consistent with ΔJ=1 (Mult.=M1+E2) or ΔJ=2 (Mult.=E2), with brackets added by evaluator, unless otherwise noted.
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
Band 1 - ΔJ=1, πg7/2~#νf7/2. | |||||||
362.9 6 | (7-) | ||||||
722.9 6 | (8-) | 360.1 425.5 | 100 13 62 10 | (M1+E2) (E2) | 362.9 297.4 | (7-) (6-) | |
994.1 6 | (9-) | 271.4 631.1 | 38 8 100 14 | (M1+E2) (E2) | 722.9 362.9 | (8-) (7-) | |
1303.7 6 | (10-) | 309.4 580.6 | 44 11 100 17 | (M1+E2) (E2) | 994.1 722.9 | (9-) (8-) | |
1577.3 6 | (11-) | 273.7 583.6 | 24 6 100 18 | (M1+E2) (E2) | 1303.7 994.1 | (10-) (9-) | |
1828.6 7 | (12-) | 251.8 524.5 | 100 12 3 | (M1+E2) (E2) | 1577.3 1303.7 | (11-) (10-) |
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) (keV) | Multipolarity | Conversion Coefficient | Additional Data |
67.9 | (3-) | 1.26 µs 16 % IT = 100 | 67.9 | E2 | 7.00 | B(E2)(W.u.)=0.92 +20-16, α=7.00, α(K)=3.80 6, α(L)=2.55 4, α(M)=0.544 8, α(N)=0.1041 15, α(O)=0.00931 13 |
297.4 | (6-) | 68.2 | M1+E2 | 4.6 | α=4.6 24, α(K)=2.8 10, α(L)=1.4 12, α(M)=0.29 24, α(N)=0.06 5, α(O)=0.005 4 | |
362.9 | (7-) | 65.6 | M1+E2 | 5 | α=5 3, α(K)=3.2 10, α(L)=1.6 14, α(M)=0.3 3, α(N)=0.07 6, α(O)=0.006 5 | |
722.9 | (8-) | 425.5 | (E2) | 0.01362 | α=0.01362, α(K)=0.01149 16, α(L)=0.001706 24, α(M)=0.000347 5, α(N)=6.92×10-5 10, α(O)=7.67E-6 11 | |
1303.7 | (10-) | 580.6 | (E2) | 0.00569 | α=0.00569, α(K)=0.00486 7, α(L)=0.000670 10, α(M)=0.0001354 19, α(N)=2.72×10-5 4, α(O)=3.08E-6 5 | |
1577.3 | (11-) | 273.7 | (M1+E2) | 0.051 | α=0.051 4, α(K)=0.0427 20, α(L)=0.0065 13, α(M)=0.0013 3, α(N)=0.00026 5, α(O)=2.9×10-5 5 | |
1828.6 | (12-) | 524.5 | (E2) | 0.00750 | α=0.00750, α(K)=0.00638 9, α(L)=0.000898 13, α(M)=0.000182 3, α(N)=3.64×10-5 6, α(O)=4.10E-6 6 |
Additional Level Data and Comments:
E(level) | Jπ(level) | T1/2(level) | Comments |
0.0 | (1-) | 6.26 s 3 % β- = 100 % β-n = 5.44 20 | Theoretical T1/2=11.5 s, %β-n=2.4 (2003Mo09). |
362.9 | (7-) | E(level): ΔJ=1, πg7/2~#νf7/2. | |
722.9 | (8-) | E(level): ΔJ=1, πg7/2~#νf7/2. | |
994.1 | (9-) | E(level): ΔJ=1, πg7/2~#νf7/2. | |
1303.7 | (10-) | E(level): ΔJ=1, πg7/2~#νf7/2. | |
1577.3 | (11-) | E(level): ΔJ=1, πg7/2~#νf7/2. | |
1828.6 | (12-) | E(level): ΔJ=1, πg7/2~#νf7/2. |
E(level) | E(gamma) | Comments |
67.9 | 67.9 | M(γ): from K/L=1.56 20 (2007Rz01) |
297.4 | 68.2 | M(γ): from αK(exp)=6 1 (2007Rz01) |
362.9 | 65.6 | M(γ): from αK(exp)=6.5 15 (2007Rz01) |
722.9 | 425.5 | M(γ): Proposed by 2007Rz01 with brackets added by evaluator. No experimental evidence is provided in 2007Rz01 for these assignments. |
1303.7 | 580.6 | M(γ): Proposed by 2007Rz01 with brackets added by evaluator. No experimental evidence is provided in 2007Rz01 for these assignments. |
1577.3 | 273.7 | M(γ): Proposed by 2007Rz01 with brackets added by evaluator. No experimental evidence is provided in 2007Rz01 for these assignments. |
1828.6 | 524.5 | M(γ): Proposed by 2007Rz01 with brackets added by evaluator. No experimental evidence is provided in 2007Rz01 for these assignments. |
First identification of 138I nuclide by 1949Su14 via neutron-induced fission (see 2013Ka01).
2011Ba33: 239Pu(n,F) E=thermal, measured Eγ, Iγ. Deduced fission yields.
2010MaZS: measured Eγ, Iγ, E(n), I(n). Deduced β-delayed neutron decay probability.
2006Ro26: 235U,239Pu(n,F) E=thermal-1.2 MeV. Measured cumulative yields.
2002Is13: 235U(n,F) E=thermal. Measured delayed neutron yields.
2000Lh02: 238U(n,F) E=20 MeV and 238U(p,F) E=25 MeV. Measured yields
2006KeZZ: 138Te β- decay, measured parent T1/2.
Mass measurement: 2012Va02
Other measurements: 2010MaZR, 1983En05, 1980De03, 1979Bo26, 1978Kr15, 1977Ru10, 1976Lu02, 1974Gr29, 1974Kr21, 1973Ad04, 1972Sc48, 1971Kr22
Nuclear structure calculations:
2009Co21, 2007Ma09, 2006Ka46: calculated half-life
1982Ma02: calculated T1/2, average Eβ, Eγ, β-delayed En, delayed-neutron emission probability.
Other calculations: 1982Ru01, 1978Gj01, 1978Gj02
Q-value: S(2n)=8577 15, S(2p)=22051 8, Q(β-n)=2332 6, Q(2β+)=10907 11 (2017Wa10)