63-Eu-159
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)
158.929100067 ± 0.000004664 (amu) [mass excess = -66042.861 ± 4.345 (keV) ]
Beta-decay energy (calculated as M(A,Z)-M(A,Z+1), taken from Ame2012)
2517.920 ± 4.444 (keV)
Strong Gamma-rays from Decay of Eu-159 (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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67.8 19.18 B-
78.6 9.1 B-
95.7 6.99 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- 18.1 M 1
Evaluated Data Libraries
Links to the libraries.
Parent Nuclides by Reactions in JENDL-4.0
Gd-160 (Z= 64, A=160), MT= 28 (n,np)
Gd-160 (Z= 64, A=160), MT=104 (n,d)
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-159 U-235 Thermal 1.557520e-06 9.968120e-07
Eu-159 U-235 Fast 2.884050e-06 1.845790e-06
Eu-159 U-235 High 6.158440e-05 3.941400e-05
Eu-159 U-238 Fast 2.190810e-06 1.402120e-06
Eu-159 U-238 High 2.798040e-05 1.790750e-05
Eu-159 Pu-239 Thermal 6.840930e-05 4.378190e-05
Eu-159 Pu-239 Fast 1.409780e-04 9.022540e-05
Eu-159 Pu-239 High 2.856750e-04 1.828330e-04
Eu-159 Pu-241 Thermal 3.723600e-05 2.383110e-05
Eu-159 Pu-241 Fast 8.929290e-05 5.714740e-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-159 U-235 Thermal 1.004170e-05 1.105450e-06
Eu-159 U-235 Fast 2.996520e-05 9.609740e-06
Eu-159 U-235 High 1.101810e-04 3.520910e-05
Eu-159 U-238 Fast 8.621390e-05 2.757780e-05
Eu-159 U-238 High 2.599480e-04 5.972500e-05
Eu-159 Pu-239 Thermal 2.019580e-04 2.221750e-05
Eu-159 Pu-239 Fast 3.732000e-04 1.679640e-04
Eu-159 Pu-239 High 3.815310e-04 2.440190e-04
Eu-159 Pu-241 Thermal 4.800040e-04 3.839450e-05
Eu-159 Pu-241 Fast 6.490040e-04 2.922750e-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