56-Ba-149
Spin
Level energy(keV) Spin & Parity
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ground state
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)
148.943080 ± 0.000210 (amu) [mass excess = -53021 ± 196 (keV) ]
[These values were derived from systematical trend]
Beta-decay energy (calculated as M(A,Z)-M(A,Z+1), taken from Ame2012)
7199 ± 280 (keV) [derived from systematical trend]
Strong Gamma-rays from Decay of Ba-149 (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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180.1 * 79. B-
226.0 * 69. B-
286.3 *100. 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- 0.344 S 7
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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Ba-149 U-235 Thermal 1.030990e-05 6.598370e-06
Ba-149 U-235 Fast 2.557640e-05 1.636880e-05
Ba-149 U-235 High 2.972820e-06 1.902610e-06
Ba-149 U-238 Fast 4.725710e-04 3.024460e-04
Ba-149 U-238 High 1.361860e-04 8.715900e-05
Ba-149 Pu-239 Thermal 2.169560e-06 1.388520e-06
Ba-149 Pu-239 Fast 2.409490e-06 1.542080e-06
Ba-149 Pu-239 High 7.669430e-07 4.908430e-07
Ba-149 Pu-241 Thermal 5.288650e-05 3.384740e-05
Ba-149 Pu-241 Fast 3.243210e-05 2.075660e-05
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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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Ba-149 U-235 Thermal 1.031350e-05 6.600640e-06
Ba-149 U-235 Fast 2.558720e-05 1.637580e-05
Ba-149 U-235 High 2.974070e-06 1.900590e-06
Ba-149 U-238 Fast 4.729960e-04 3.026070e-04
Ba-149 U-238 High 1.365580e-04 8.730290e-05
Ba-149 Pu-239 Thermal 2.169660e-06 1.388580e-06
Ba-149 Pu-239 Fast 2.409610e-06 1.542140e-06
Ba-149 Pu-239 High 7.674980e-07 4.908800e-07
Ba-149 Pu-241 Thermal 5.291850e-05 3.386240e-05
Ba-149 Pu-241 Fast 3.245560e-05 2.077160e-05
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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