63-Eu-161
Spin
Level energy(keV) Spin & Parity
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ground state
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)
160.933664091 ± 0.000011164 (amu) [mass excess = -61791.501 ± 10.400 (keV) ]
Beta-decay energy (calculated as M(A,Z)-M(A,Z+1), taken from Ame2012)
3713.508 ± 10.586 (keV)
Strong Gamma-rays from Decay of Eu-161 (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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163.7 -- B-
293.9 -- B-
314.3 -- 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(%). ]
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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Eu-161 U-235 Thermal 4.532780e-07 2.900980e-07
Eu-161 U-235 Fast 1.526850e-06 9.771830e-07
Eu-161 U-235 High 2.512450e-05 1.607970e-05
Eu-161 U-238 Fast 3.011120e-06 1.927120e-06
Eu-161 U-238 High 3.848190e-05 2.462840e-05
Eu-161 Pu-239 Thermal 2.766570e-05 1.770600e-05
Eu-161 Pu-239 Fast 4.681240e-05 2.996000e-05
Eu-161 Pu-239 High 4.969220e-05 3.180300e-05
Eu-161 Pu-241 Thermal 3.592580e-05 2.299250e-05
Eu-161 Pu-241 Fast 1.214490e-04 7.772710e-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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Eu-161 U-235 Thermal 7.402280e-07 2.371040e-07
Eu-161 U-235 Fast 3.099040e-06 9.952510e-07
Eu-161 U-235 High 2.898420e-05 1.851960e-05
Eu-161 U-238 Fast 1.205190e-05 1.325510e-06
Eu-161 U-238 High 8.052630e-05 1.850150e-05
Eu-161 Pu-239 Thermal 3.556850e-05 2.276380e-05
Eu-161 Pu-239 Fast 5.798170e-05 3.710820e-05
Eu-161 Pu-239 High 5.328720e-05 3.408000e-05
Eu-161 Pu-241 Thermal 8.154370e-05 1.304320e-05
Eu-161 Pu-241 Fast 2.128870e-04 1.362480e-04
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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