58-Ce-139
Spin
Level energy(keV) Spin & Parity
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ground state 3/2+
7.54240E+02 11/2-
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)
138.906655111 ± 0.000007842 (amu) [mass excess = -86950.204 ± 7.305 (keV) ]
Beta-decay energy (calculated as M(A,Z)-M(A,Z+1), taken from Ame2012)
-2129.070 ± 2.996 (keV)
Strong Gamma-rays from Decay of Ce-139 (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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165.86 ? 79.9 EC
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754.24 ? 92.45 IT
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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
EC 137.641 D 20
IT 54.8 S 10
Evaluated Data Libraries
Links to the libraries.
Parent Nuclides by Reactions in JENDL-4.0
Ce-140 (Z= 58, A=140), MT= 16 (n,2n)
Ce-141 (Z= 58, A=141), MT= 17 (n,3n)
Pr-141 (Z= 59, A=141), MT= 32 (n,nd)
Pr-141 (Z= 59, A=141), MT=105 (n,t)
Nd-142 (Z= 60, A=142), MT=107 (n,α)
Nd-143 (Z= 60, A=143), MT= 22 (n,nα)
Nd-144 (Z= 60, A=144), MT= 24 (n,2nα)
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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Ce-139 U-235 Thermal 2.896090e-12 1.853490e-12
Ce-139 U-235 Fast 7.976100e-13 5.104710e-13
Ce-139 U-235 High 2.091800e-08 1.338750e-08
Ce-139 U-238 Fast 3.630760e-14 2.323680e-14
Ce-139 U-238 High 3.082160e-11 1.972590e-11
Ce-139 Pu-239 Thermal 9.901840e-10 6.337170e-10
Ce-139 Pu-239 Fast 8.561900e-10 5.479610e-10
Ce-139 Pu-239 High 3.953090e-07 2.529980e-07
Ce-139 Pu-241 Thermal 2.907030e-12 1.860500e-12
Ce-139 Pu-241 Fast 3.873710e-12 2.479170e-12
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Ce-139m U-235 Thermal 6.988170e-12 4.472430e-12
Ce-139m U-235 Fast 2.235130e-12 1.430480e-12
Ce-139m U-235 High 9.594220e-08 6.140300e-08
Ce-139m U-238 Fast 1.017440e-13 6.511600e-14
Ce-139m U-238 High 1.413660e-10 9.047410e-11
Ce-139m Pu-239 Thermal 2.389280e-09 1.529140e-09
Ce-139m Pu-239 Fast 2.399280e-09 1.535540e-09
Ce-139m Pu-239 High 1.813120e-06 1.160400e-06
Ce-139m Pu-241 Thermal 7.014570e-12 4.489330e-12
Ce-139m Pu-241 Fast 1.085520e-11 6.947340e-12
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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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Ce-139 U-235 Thermal 9.884260e-12 6.325930e-12
Ce-139 U-235 Fast 3.032740e-12 1.940950e-12
Ce-139 U-235 High 1.168790e-07 7.480070e-08
Ce-139 U-238 Fast 1.380520e-13 8.835310e-14
Ce-139 U-238 High 1.721880e-10 1.099450e-10
Ce-139 Pu-239 Thermal 3.379500e-09 2.162880e-09
Ce-139 Pu-239 Fast 3.255510e-09 2.083520e-09
Ce-139 Pu-239 High 2.209970e-06 1.413160e-06
Ce-139 Pu-241 Thermal 9.921600e-12 6.349830e-12
Ce-139 Pu-241 Fast 1.472890e-11 9.426510e-12
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Ce-139m U-235 Thermal 6.988170e-12 4.472430e-12
Ce-139m U-235 Fast 2.235130e-12 1.430480e-12
Ce-139m U-235 High 9.594220e-08 6.131210e-08
Ce-139m U-238 Fast 1.017440e-13 6.509220e-14
Ce-139m U-238 High 1.413660e-10 9.037610e-11
Ce-139m Pu-239 Thermal 2.389280e-09 1.529140e-09
Ce-139m Pu-239 Fast 2.399280e-09 1.535540e-09
Ce-139m Pu-239 High 1.813120e-06 1.159650e-06
Ce-139m Pu-241 Thermal 7.014570e-12 4.488600e-12
Ce-139m Pu-241 Fast 1.085520e-11 6.947340e-12
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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