63-Eu-155
Spin
Level energy(keV) Spin & Parity
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ground state 5/2+
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)
154.922901107 ± 0.000001902 (amu) [mass excess = -71817.156 ± 1.773 (keV) ]
Beta-decay energy (calculated as M(A,Z)-M(A,Z+1), taken from Ame2012)
252.094 ± 0.856 (keV)
Strong Gamma-rays from Decay of Eu-155 (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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45.30 1.31 B-
86.55 30.7 B-
105.31 21.12 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- 4.753 Y 14
Cross Sections (taken from JENDL-4.0)
Table of cross sections, Eu-155.
Figures of cross sections, Eu-155: 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
Eu-154 (Z= 63, A=154), MT=102 (n,γ)
Eu-155 (Z= 63, A=155), MT= 2 (Elastic scattering)
Eu-155 (Z= 63, A=155), MT= 4 (Inelastic scattering)
Eu-156 (Z= 63, A=156), MT= 16 (n,2n)
Eu-157 (Z= 63, A=157), MT= 17 (n,3n)
Gd-155 (Z= 64, A=155), MT=103 (n,p)
Gd-156 (Z= 64, A=156), MT= 28 (n,np)
Gd-156 (Z= 64, A=156), MT=104 (n,d)
Gd-157 (Z= 64, A=157), MT= 32 (n,nd)
Gd-157 (Z= 64, A=157), MT= 41 (n,2np)
Gd-157 (Z= 64, A=157), MT=105 (n,t)
Tb-159 (Z= 65, A=159), MT= 22 (n,nα)
Tb-160 (Z= 65, A=160), 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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Eu-155 U-235 Thermal 2.625810e-08 1.680520e-08
Eu-155 U-235 Fast 1.097730e-08 7.025500e-09
Eu-155 U-235 High 1.066460e-05 6.825360e-06
Eu-155 U-238 Fast 2.110780e-09 1.350900e-09
Eu-155 U-238 High 1.611760e-07 1.031520e-07
Eu-155 Pu-239 Thermal 1.929700e-06 1.235000e-06
Eu-155 Pu-239 Fast 4.489270e-06 2.873140e-06
Eu-155 Pu-239 High 1.517180e-04 9.709980e-05
Eu-155 Pu-241 Thermal 4.630750e-08 2.963680e-08
Eu-155 Pu-241 Fast 2.717960e-07 1.739490e-07
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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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Eu-155 U-235 Thermal 3.207940e-04 1.286660e-05
Eu-155 U-235 Fast 3.937380e-04 4.342980e-05
Eu-155 U-235 High 7.882510e-04 8.659260e-05
Eu-155 U-238 Fast 1.412620e-03 2.264390e-04
Eu-155 U-238 High 1.552620e-03 4.968250e-04
Eu-155 Pu-239 Thermal 1.656840e-03 1.822940e-04
Eu-155 Pu-239 Fast 2.087750e-03 4.802800e-04
Eu-155 Pu-239 High 2.330010e-03 3.725680e-04
Eu-155 Pu-241 Thermal 2.412900e-03 1.931350e-04
Eu-155 Pu-241 Fast 3.354650e-03 1.074710e-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