56-Ba-139
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)
138.908841099 ± 0.000000309 (amu) [mass excess = -84913.969 ± 0.288 (keV) ]
Beta-decay energy (calculated as M(A,Z)-M(A,Z+1), taken from Ame2012)
2314.616 ± 2.271 (keV)
Strong Gamma-rays from Decay of Ba-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 23.72 B-
1254.7 0.03 B-
1420.5 0.26 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- 83.06 M 28
Evaluated Data Libraries
Links to the libraries.
Parent Nuclides by Reactions in JENDL-4.0
Ba-138 (Z= 56, A=138), MT=102 (n,γ)
Ba-140 (Z= 56, A=140), MT= 16 (n,2n)
La-139 (Z= 57, A=139), MT=103 (n,p)
La-140 (Z= 57, A=140), MT= 28 (n,np)
La-140 (Z= 57, A=140), MT=104 (n,d)
Ce-141 (Z= 58, A=141), MT=106 (n,3He)
Ce-142 (Z= 58, A=142), MT=107 (n,α)
Ce-143 (Z= 58, A=143), MT= 22 (n,nα)
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-139 U-235 Thermal 6.866360e-04 3.089870e-04
Ba-139 U-235 Fast 2.003860e-04 1.282470e-04
Ba-139 U-235 High 3.820190e-03 2.444920e-03
Ba-139 U-238 Fast 2.772040e-05 1.774100e-05
Ba-139 U-238 High 2.717730e-03 8.696730e-04
Ba-139 Pu-239 Thermal 2.262760e-03 1.448170e-03
Ba-139 Pu-239 Fast 2.387350e-03 1.527900e-03
Ba-139 Pu-239 High 7.726550e-03 4.945000e-03
Ba-139 Pu-241 Thermal 3.050390e-04 1.952250e-04
Ba-139 Pu-241 Fast 3.097370e-04 1.982320e-04
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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-139 U-235 Thermal 6.404350e-02 4.579690e-04
Ba-139 U-235 Fast 6.330360e-02 6.472960e-04
Ba-139 U-235 High 4.810120e-02 2.882700e-03
Ba-139 U-238 Fast 5.676950e-02 1.136060e-03
Ba-139 U-238 High 5.056130e-02 1.415380e-03
Ba-139 Pu-239 Thermal 5.635100e-02 1.578140e-03
Ba-139 Pu-239 Fast 5.609650e-02 1.122140e-03
Ba-139 Pu-239 High 4.094710e-02 4.501360e-03
Ba-139 Pu-241 Thermal 6.218580e-02 2.486980e-03
Ba-139 Pu-241 Fast 6.302770e-02 3.784700e-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