57-La-136
Spin
Level energy(keV) Spin & Parity
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ground state 1+
2.30000E+02
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)
135.907634962 ± 0.000057081 (amu) [mass excess = -86037.478 ± 53.171 (keV) ]
Beta-decay energy (calculated as M(A,Z)-M(A,Z+1), taken from Ame2012)
471.110 ± 53.172 (keV)
Strong Gamma-rays from Decay of La-136 (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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760.50 0.29 EC
818.51 2.3 EC
1322.99 0.26 EC
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21.8 2.16 IT
33.5 39.2 IT
95.7 44.4 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 9.87 M 3
IT 114 MS 3
Evaluated Data Libraries
Links to the libraries.
Parent Nuclides by Reactions in JENDL-4.0
La-138 (Z= 57, A=138), MT= 17 (n,3n)
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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La-136 U-235 High 3.640220e-08 2.912170e-08
La-136 Pu-239 High 8.267050e-07 6.613640e-07
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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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La-136 U-235 High 3.640220e-08 2.912170e-08
La-136 Pu-239 High 8.267050e-07 6.613640e-07
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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