54-Xe-127
Spin
Level energy(keV) Spin & Parity
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ground state 1/2+
2.97100E+02 9/2-
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)
126.905182914 ± 0.000004412 (amu) [mass excess = -88321.546 ± 4.111 (keV) ]
Beta-decay energy (calculated as M(A,Z)-M(A,Z+1), taken from Ame2012)
-2081.396 ± 6.421 (keV)
Strong Gamma-rays from Decay of Xe-127 (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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124.6 69. IT
172.5 37.95 IT
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172.13 25.54 EC
202.86 68.3 EC
374.99 17.21 EC
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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 36.4 D 1
IT 69.2 S 9
Evaluated Data Libraries
Links to the libraries.
Parent Nuclides by Reactions in JENDL-4.0
Xe-126 (Z= 54, A=126), MT=102 (n,γ)
Xe-128 (Z= 54, A=128), MT= 16 (n,2n)
Xe-129 (Z= 54, A=129), MT= 17 (n,3n)
Ba-130 (Z= 56, A=130), MT=107 (n,α)
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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Xe-127 U-235 High 3.712280e-11 2.375860e-11
Xe-127 U-238 High 2.421830e-14 1.549980e-14
Xe-127 Pu-239 High 9.559800e-10 6.118270e-10
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Xe-127m U-235 High 2.943310e-10 1.883720e-10
Xe-127m U-238 High 1.920160e-13 1.228910e-13
Xe-127m Pu-239 High 7.579550e-09 4.850920e-09
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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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Xe-127 U-235 High 3.314540e-10 1.828140e-10
Xe-127 U-238 High 2.162350e-13 1.192510e-13
Xe-127 Pu-239 High 8.535530e-09 4.706680e-09
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Xe-127m U-235 High 2.943310e-10 1.880930e-10
Xe-127m U-238 High 1.920160e-13 1.227580e-13
Xe-127m Pu-239 High 7.579550e-09 4.847770e-09
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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