70-Yb-169
Spin
Level energy(keV) Spin & Parity
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ground state 7/2+
2.41999E+01 1/2-
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)
168.935182512 ± 0.000002204 (amu) [mass excess = -60377.101 ± 2.054 (keV) ]
Beta-decay energy (calculated as M(A,Z)-M(A,Z+1), taken from Ame2012)
-2293.000 ± 3.000 (keV)
Strong Gamma-rays from Decay of Yb-169 (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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24.20 4.E-04 IT
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63.12 43.62 EC
177.21 22.28 EC
197.96 35.93 EC
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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
EC 32.018 D 5
IT 46 S 2
Evaluated Data Libraries
Links to the libraries.
Parent Nuclides by Reactions in JENDL-4.0
Yb-168 (Z= 70, A=168), MT=102 (n,γ)
Yb-170 (Z= 70, A=170), MT= 16 (n,2n)
Yb-171 (Z= 70, A=171), MT= 17 (n,3n)
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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Yb-169 U-235 High 5.738870e-13 3.425530e-13
Yb-169 Pu-239 High 3.099010e-11 1.849620e-11
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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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Yb-169 U-235 High 5.738870e-13 3.666790e-13
Yb-169 Pu-239 High 3.099010e-11 1.983370e-11
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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