57-La-148
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)
147.932679400 ± 0.000020900 (amu) [mass excess = -62708.735 ± 19.468 (keV) ]
Beta-decay energy (calculated as M(A,Z)-M(A,Z+1), taken from Ame2012)
7689.645 ± 22.458 (keV)
Strong Gamma-rays from Decay of La-148 (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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158.47 55.6 B-
760.30 8.56 B-
989.85 9.34 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- 1.26 S 8
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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La-148 U-235 Thermal 3.357740e-03 2.148960e-03
La-148 U-235 Fast 4.214280e-03 2.697140e-03
La-148 U-235 High 1.494700e-03 9.566070e-04
La-148 U-238 Fast 1.090270e-02 6.977750e-03
La-148 U-238 High 7.658030e-03 4.901140e-03
La-148 Pu-239 Thermal 1.170370e-03 7.490340e-04
La-148 Pu-239 Fast 1.721520e-03 1.101770e-03
La-148 Pu-239 High 6.190910e-04 3.962190e-04
La-148 Pu-241 Thermal 7.249230e-03 4.639510e-03
La-148 Pu-241 Fast 5.388760e-03 3.448810e-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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La-148 U-235 Thermal 3.579410e-03 2.290820e-03
La-148 U-235 Fast 4.600150e-03 2.944100e-03
La-148 U-235 High 1.534580e-03 9.806850e-04
La-148 U-238 Fast 1.341880e-02 6.037450e-03
La-148 U-238 High 8.461510e-03 3.803920e-03
La-148 Pu-239 Thermal 1.196820e-03 7.659610e-04
La-148 Pu-239 Fast 1.761820e-03 1.127560e-03
La-148 Pu-239 High 6.291190e-04 4.023740e-04
La-148 Pu-241 Thermal 7.752450e-03 3.488110e-03
La-148 Pu-241 Fast 5.753160e-03 2.590910e-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