53-I-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)
138.926506206 ± 0.000031000 (amu) [mass excess = -68459.027 ± 28.876 (keV) ]
Beta-decay energy (calculated as M(A,Z)-M(A,Z+1), taken from Ame2012)
7185.548 ± 28.956 (keV)
Strong Gamma-rays from Decay of I-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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527.7 8.26 B-
536.6 5.53 B-
571.2 8.09 B-
483.6 1.71 B-,N
588.8 5.67 B-,N
875.2 0.46 B-,N
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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- 2.280 S 11
B-N 2.280 S 11
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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I-139 U-235 Thermal 7.702570e-03 6.162060e-04
I-139 U-235 Fast 4.595260e-03 3.676210e-04
I-139 U-235 High 1.963610e-03 1.256710e-03
I-139 U-238 Fast 2.056360e-02 6.580370e-03
I-139 U-238 High 8.881140e-03 5.683930e-03
I-139 Pu-239 Thermal 3.187500e-03 7.331250e-04
I-139 Pu-239 Fast 1.930250e-03 1.235360e-03
I-139 Pu-239 High 6.367730e-04 4.075340e-04
I-139 Pu-241 Thermal 8.889140e-03 9.778050e-04
I-139 Pu-241 Fast 8.250530e-03 5.280340e-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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I-139 U-235 Thermal 7.777840e-03 6.220550e-04
I-139 U-235 Fast 4.689820e-03 3.756250e-04
I-139 U-235 High 1.984980e-03 1.267890e-03
I-139 U-238 Fast 2.174140e-02 4.984990e-03
I-139 U-238 High 9.170570e-03 5.853080e-03
I-139 Pu-239 Thermal 3.195410e-03 7.349540e-04
I-139 Pu-239 Fast 1.942830e-03 1.243210e-03
I-139 Pu-239 High 6.417570e-04 4.103050e-04
I-139 Pu-241 Thermal 9.070760e-03 7.249420e-04
I-139 Pu-241 Fast 8.404170e-03 3.781410e-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