54-Xe-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)
136.911557781 ± 0.000000111 (amu) [mass excess = -82383.396 ± 0.104 (keV) ]
Beta-decay energy (calculated as M(A,Z)-M(A,Z+1), taken from Ame2012)
4162.428 ± 0.347 (keV)
Strong Gamma-rays from Decay of Xe-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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455.49 31. B-
848.95 0.62 B-
1783.43 0.41 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- 3.818 M 13
Evaluated Data Libraries
Links to the libraries.
Parent Nuclides by Reactions in JENDL-4.0
Xe-136 (Z= 54, A=136), MT=102 (n,γ)
Cs-137 (Z= 55, A=137), MT=103 (n,p)
Ba-140 (Z= 56, A=140), MT=107 (n,α)
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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Xe-137 U-235 Thermal 3.189350e-02 8.930170e-04
Xe-137 U-235 Fast 3.525790e-02 1.410320e-03
Xe-137 U-235 High 2.682490e-02 2.950740e-03
Xe-137 U-238 Fast 1.077760e-02 3.448850e-03
Xe-137 U-238 High 1.675300e-02 1.340240e-03
Xe-137 Pu-239 Thermal 3.683360e-02 1.473350e-03
Xe-137 Pu-239 Fast 3.660590e-02 2.928470e-03
Xe-137 Pu-239 High 2.191200e-02 2.410320e-03
Xe-137 Pu-241 Thermal 2.696740e-02 2.157390e-03
Xe-137 Pu-241 Fast 2.571110e-02 8.227550e-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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Xe-137 U-235 Thermal 6.115380e-02 6.263510e-04
Xe-137 U-235 Fast 5.978940e-02 8.508440e-04
Xe-137 U-235 High 3.983870e-02 1.592360e-03
Xe-137 U-238 Fast 6.039750e-02 1.208370e-03
Xe-137 U-238 High 4.728610e-02 1.323490e-03
Xe-137 Pu-239 Thermal 6.007550e-02 1.202270e-03
Xe-137 Pu-239 Fast 5.577980e-02 1.562600e-03
Xe-137 Pu-239 High 2.841240e-02 7.953210e-04
Xe-137 Pu-241 Thermal 6.556610e-02 1.311770e-03
Xe-137 Pu-241 Fast 6.291710e-02 6.929950e-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