68-Er-172
Spin
Level energy(keV) Spin & Parity
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ground state 0+
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)
171.939361858 ± 0.000004731 (amu) [mass excess = -56484.065 ± 4.407 (keV) ]
Beta-decay energy (calculated as M(A,Z)-M(A,Z+1), taken from Ame2012)
890.823 ± 4.544 (keV)
Strong Gamma-rays from Decay of Er-172 (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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68.11 3.29 B-
407.34 42.1 B-
610.06 44.2 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- 49.3 H 5
Evaluated Data Libraries
Links to the libraries.
Parent Nuclides by Reactions in JENDL-4.0
Yb-174 (Z= 70, A=174), MT=106 (n,3He)
Yb-176 (Z= 70, A=176), MT= 22 (n,nα)
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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Er-172 U-235 Thermal 2.196500e-12 1.405760e-12
Er-172 U-235 Fast 2.704420e-12 1.730820e-12
Er-172 U-235 High 7.970930e-08 5.101390e-08
Er-172 U-238 Fast 1.620600e-09 1.037190e-09
Er-172 U-238 High 1.171270e-08 7.496160e-09
Er-172 Pu-239 Thermal 1.909700e-10 1.222200e-10
Er-172 Pu-239 Fast 3.649410e-09 2.335620e-09
Er-172 Pu-239 High 1.010660e-07 6.468190e-08
Er-172 Pu-241 Thermal 3.470560e-11 2.221160e-11
Er-172 Pu-241 Fast 2.618030e-09 1.675540e-09
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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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Er-172 U-235 Thermal 7.658310e-12 3.455820e-12
Er-172 U-235 Fast 1.918570e-11 8.639940e-12
Er-172 U-235 High 1.547780e-07 2.479800e-08
Er-172 U-238 Fast 1.066410e-07 3.424210e-08
Er-172 U-238 High 2.127420e-07 6.784430e-08
Er-172 Pu-239 Thermal 4.885310e-10 3.126590e-10
Er-172 Pu-239 Fast 7.516610e-09 4.806320e-09
Er-172 Pu-239 High 1.383710e-07 8.832080e-08
Er-172 Pu-241 Thermal 7.312770e-10 3.289500e-10
Er-172 Pu-241 Fast 1.652720e-08 7.425050e-09
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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