64-Gd-163
Spin
Level energy(keV) Spin & Parity
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ground state (5/2-,7/2+)
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)
162.934176855 ± 0.000009045 (amu) [mass excess = -61313.864 ± 8.426 (keV) ]
Beta-decay energy (calculated as M(A,Z)-M(A,Z+1), taken from Ame2012)
3280.905 ± 9.515 (keV)
Strong Gamma-rays from Decay of Gd-163 (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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214.0 11.5 B-
287.79 25. B-
1562.1 9. 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- 68 S 3
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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Gd-163 U-235 Thermal 3.803940e-08 2.434530e-08
Gd-163 U-235 Fast 4.700300e-08 3.008190e-08
Gd-163 U-235 High 8.782040e-06 5.620500e-06
Gd-163 U-238 Fast 3.201190e-07 2.048760e-07
Gd-163 U-238 High 1.081170e-05 6.919540e-06
Gd-163 Pu-239 Thermal 5.989060e-06 3.832990e-06
Gd-163 Pu-239 Fast 2.126650e-05 1.361060e-05
Gd-163 Pu-239 High 1.205780e-05 7.717000e-06
Gd-163 Pu-241 Thermal 2.020330e-08 1.293010e-08
Gd-163 Pu-241 Fast 2.629020e-05 1.682570e-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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Gd-163 U-235 Thermal 5.877820e-08 3.761800e-08
Gd-163 U-235 Fast 9.444140e-08 4.256990e-08
Gd-163 U-235 High 1.108180e-05 7.084010e-06
Gd-163 U-238 Fast 2.038380e-06 9.180070e-07
Gd-163 U-238 High 3.332230e-05 1.498060e-05
Gd-163 Pu-239 Thermal 8.138340e-06 5.208540e-06
Gd-163 Pu-239 Fast 2.694580e-05 1.724530e-05
Gd-163 Pu-239 High 1.346990e-05 8.614410e-06
Gd-163 Pu-241 Thermal 5.852770e-08 3.744000e-08
Gd-163 Pu-241 Fast 5.080980e-05 2.288250e-05
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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