53-I-138
Spin
Level energy(keV) Spin & Parity
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ground state (2-)
Mass (The Ame2012 atomic mass evaluation (II) by M.Wang, G.Audi, A.H.Wapstra, F.G.Kondev, M.MacCormick, X.Xu, and B.Pfeiffer
Chinese Physics C36 p. 1603-2014, December 2012)
137.922726402 ± 0.000006400 (amu) [mass excess = -71979.892 ± 5.962 (keV) ]
Beta-decay energy (calculated as M(A,Z)-M(A,Z+1), taken from Ame2012)
7992.339 ± 6.588 (keV)
Strong Gamma-rays from Decay of I-138 (Compiled from ENSDF as of March 2011)
[ Intensities before May 23th of 2013 were values when total intensity of the decay mode was 100(%) and a branching ratio of each decay mode was not multiplied. ]
γ-ray energy(keV) Intensity(%) Decay mode
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588.83 56. B-
875.23 9.24 B-
2262.19 3.86 B-
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385.2 0.06 B-,N
601.0 1.14 B-,N
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*: relative, ~ approximate, ? calculated or estimatted
>: greater than or equal to, <: less than or equal to
[ Intensities; total intensity of the nuclide is 100(%). ]
Decay data(Chart of the Nuclides 2014)
Decay mode Half-life
B- 6.23 S 3
B-N 6.41 S 6
Evaluated Data Libraries
Links to the libraries.
Parent Nuclides by Reactions in JENDL-4.0
Fission Yields for Fission Products in JENDL-4.0 Fission Yield Data
- Neutron-induced Fission Yields (from main actinide nuclides) - Independent Fission Yield -
Product Nuclide Energy Fission Yield Uncertainty(1σ)
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I-138 U-235 Thermal 1.421960e-02 3.981470e-04
I-138 U-235 Fast 1.248130e-02 7.488830e-04
I-138 U-235 High 5.117150e-03 3.274980e-03
I-138 U-238 Fast 3.120410e-02 9.985320e-03
I-138 U-238 High 2.268350e-02 5.217200e-03
I-138 Pu-239 Thermal 1.271570e-02 1.017250e-03
I-138 Pu-239 Fast 1.023260e-02 1.125600e-03
I-138 Pu-239 High 1.042470e-03 2.397670e-04
I-138 Pu-241 Thermal 2.129200e-02 1.703360e-03
I-138 Pu-241 Fast 1.708580e-02 5.467430e-03
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Thermal=0.0253eV, Fast=500keV(Fast reactor spectrum), High=14MeV
- Neutron-induced Fission Yields (from main actinide nuclides) - Cumulative Fission Yield -
Product Nuclide Energy Fission Yield Uncertainty(1σ)
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I-138 U-235 Thermal 1.483910e-02 4.169210e-04
I-138 U-235 Fast 1.349880e-02 5.420740e-04
I-138 U-235 High 5.271190e-03 3.369060e-03
I-138 U-238 Fast 3.642370e-02 8.384740e-03
I-138 U-238 High 2.745540e-02 3.017770e-03
I-138 Pu-239 Thermal 1.282520e-02 7.696450e-04
I-138 Pu-239 Fast 1.046620e-02 1.151490e-03
I-138 Pu-239 High 1.060700e-03 1.696330e-04
I-138 Pu-241 Thermal 2.228210e-02 1.337120e-03
I-138 Pu-241 Fast 1.816990e-02 4.183520e-03
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Thermal=0.0253eV, Fast=500keV(Fast reactor spectrum), High=14MeV
→ Neutron-induced and Spontaneous Fission Yields of all nuclides in JENDL-4.0 Fission Yield Data