52-Te-121
Spin
Level energy(keV) Spin & Parity
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ground state 1/2+
2.93991E+02 11/2-
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)
120.904943812 ± 0.000027764 (amu) [mass excess = -88544.269 ± 25.863 (keV) ]
Beta-decay energy (calculated as M(A,Z)-M(A,Z+1), taken from Ame2012)
-2292.629 ± 26.062 (keV)
Strong Gamma-rays from Decay of Te-121 (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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81.79 0.05 IT
212.19 81.51 IT
37.14 0.94 EC
998.29 0.08 EC
1102.15 2.54 EC
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470.47 1.41 EC
507.59 17.69 EC
573.14 80.4 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 164.2 D 8
EC 19.17 D 4
IT 164.2 D 8
Evaluated Data Libraries
Links to the libraries.
Parent Nuclides by Reactions in JENDL-4.0
Te-120 (Z= 52, A=120), MT=102 (n,γ)
Te-122 (Z= 52, A=122), MT= 16 (n,2n)
Te-123 (Z= 52, A=123), MT= 17 (n,3n)
Xe-124 (Z= 54, A=124), 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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Te-121 U-235 Fast 3.274540e-15 2.095710e-15
Te-121 U-235 High 2.240970e-12 1.434220e-12
Te-121 Pu-239 Thermal 8.609860e-13 5.510320e-13
Te-121 Pu-239 Fast 1.876520e-12 1.200970e-12
Te-121 Pu-239 High 6.801510e-10 4.352970e-10
Te-121 Pu-241 Fast 5.868490e-15 3.755830e-15
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Te-121m U-235 Fast 1.239310e-14 7.931600e-15
Te-121m U-235 High 1.388110e-11 8.883930e-12
Te-121m Pu-239 Thermal 2.818440e-12 1.803810e-12
Te-121m Pu-239 Fast 7.102030e-12 4.545300e-12
Te-121m Pu-239 High 4.213020e-09 2.696330e-09
Te-121m Pu-241 Fast 2.221040e-14 1.421470e-14
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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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Te-121 U-235 Fast 1.425480e-14 7.685510e-15
Te-121 U-235 High 1.453970e-11 7.917640e-12
Te-121 Pu-239 Thermal 3.358120e-12 1.814830e-12
Te-121 Pu-239 Fast 8.168910e-12 4.404050e-12
Te-121 Pu-239 High 4.412890e-09 2.402660e-09
Te-121 Pu-241 Fast 2.554690e-14 1.377310e-14
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Te-121m U-235 Fast 1.239310e-14 7.931600e-15
Te-121m U-235 High 1.388110e-11 8.870770e-12
Te-121m Pu-239 Thermal 2.818440e-12 1.803810e-12
Te-121m Pu-239 Fast 7.102030e-12 4.545300e-12
Te-121m Pu-239 High 4.213020e-09 2.694590e-09
Te-121m Pu-241 Fast 2.221040e-14 1.421470e-14
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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