53-I-131
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)
130.906126305 ± 0.000000690 (amu) [mass excess = -87442.784 ± 0.643 (keV) ]
Beta-decay energy (calculated as M(A,Z)-M(A,Z+1), taken from Ame2012)
970.848 ± 0.605 (keV)
Strong Gamma-rays from Decay of I-131 (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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284.31 6.12 B-
364.49 81.5 B-
636.99 7.16 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- 8.0252 D 6
Cross Sections (taken from JENDL-4.0)
Table of cross sections, I-131.
Figures of cross sections, I-131: type-1: type-2: type-3.
type-1: total, elastic and inelastic scattering, capture and fision cross sections
type-2: same as type-1 but cross sections are averaged in 70 energy group intervals
type-3: threshold reaction cross sections
Evaluated Data Libraries
Links to the libraries.
Parent Nuclides by Reactions in JENDL-4.0
I -130 (Z= 53, A=130), MT=102 (n,γ)
I -131 (Z= 53, A=131), MT= 2 (Elastic scattering)
I -131 (Z= 53, A=131), MT= 4 (Inelastic scattering)
Xe-131 (Z= 54, A=131), MT=103 (n,p)
Xe-132 (Z= 54, A=132), MT= 28 (n,np)
Xe-132 (Z= 54, A=132), MT=104 (n,d)
Xe-133 (Z= 54, A=133), MT= 32 (n,nd)
Xe-133 (Z= 54, A=133), MT=105 (n,t)
Cs-133 (Z= 55, A=133), MT= 44 (n,n2p)
Cs-133 (Z= 55, A=133), MT=106 (n,3He)
Cs-133 (Z= 55, A=133), MT=115 (n,pd)
Cs-134 (Z= 55, A=134), MT= 34 (n,n3He)
Cs-134 (Z= 55, A=134), MT=107 (n,α)
Cs-134 (Z= 55, A=134), MT=116 (n,pt)
Cs-135 (Z= 55, A=135), MT= 22 (n,nα)
Cs-136 (Z= 55, A=136), MT= 24 (n,2nα)
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-131 U-235 Thermal 3.909770e-05 4.300760e-06
I-131 U-235 Fast 1.078770e-05 6.904150e-06
I-131 U-235 High 1.203360e-03 7.701500e-04
I-131 U-238 Fast 7.892940e-12 5.051480e-12
I-131 U-238 High 1.158460e-04 7.414150e-05
I-131 Pu-239 Thermal 2.293040e-04 1.467550e-04
I-131 Pu-239 Fast 2.006570e-04 1.284200e-04
I-131 Pu-239 High 4.027350e-03 2.577500e-03
I-131 Pu-241 Thermal 1.913310e-05 3.061300e-06
I-131 Pu-241 Fast 1.993500e-05 1.275840e-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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I-131 U-235 Thermal 2.890920e-02 2.890780e-04
I-131 U-235 Fast 3.217610e-02 4.511380e-04
I-131 U-235 High 4.107480e-02 1.641700e-03
I-131 U-238 Fast 3.292630e-02 4.610710e-04
I-131 U-238 High 3.995190e-02 7.989580e-04
I-131 Pu-239 Thermal 3.856320e-02 3.856350e-04
I-131 Pu-239 Fast 3.878270e-02 3.878320e-04
I-131 Pu-239 High 4.357720e-02 1.742180e-03
I-131 Pu-241 Thermal 3.101650e-02 1.240360e-03
I-131 Pu-241 Fast 3.362660e-02 1.344970e-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