53-I-137
Spin
Level energy(keV) Spin & Parity
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ground state (7/2+)
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)
136.918028188 ± 0.000009000 (amu) [mass excess = -76356.251 ± 8.383 (keV) ]
Beta-decay energy (calculated as M(A,Z)-M(A,Z+1), taken from Ame2012)
6027.146 ± 8.384 (keV)
Strong Gamma-rays from Decay of I-137 (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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601.05 4.8 B-
1218.00 12.8 B-
1302.64 4.42 B-
4298.3 0.01 B-
4379.7 0.04 B-
4880.5 0.01 B-
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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- 24.5 S 2
B- 24.5 S 2
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-137 U-235 Thermal 2.618380e-02 1.047360e-03
I-137 U-235 Fast 2.396630e-02 1.437980e-03
I-137 U-235 High 1.290870e-02 4.130760e-03
I-137 U-238 Fast 3.532540e-02 5.652070e-03
I-137 U-238 High 2.578980e-02 4.126380e-03
I-137 Pu-239 Thermal 2.299100e-02 1.379460e-03
I-137 Pu-239 Fast 1.887930e-02 3.020690e-03
I-137 Pu-239 High 6.656950e-03 4.260440e-03
I-137 Pu-241 Thermal 3.515360e-02 2.812290e-03
I-137 Pu-241 Fast 3.356470e-02 5.370340e-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-137 U-235 Thermal 3.061800e-02 8.612610e-04
I-137 U-235 Fast 2.560720e-02 1.540600e-03
I-137 U-235 High 1.369630e-02 3.145610e-03
I-137 U-238 Fast 5.125570e-02 4.100030e-03
I-137 U-238 High 3.124130e-02 2.497250e-03
I-137 Pu-239 Thermal 2.425900e-02 9.705180e-04
I-137 Pu-239 Fast 2.001960e-02 2.202520e-03
I-137 Pu-239 High 6.934400e-03 3.118490e-03
I-137 Pu-241 Thermal 4.022950e-02 2.413490e-03
I-137 Pu-241 Fast 3.897390e-02 4.290680e-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