31-Ga-81
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)
80.938133843 ± 0.000003503 (amu) [mass excess = -57627.954 ± 3.264 (keV) ]
Beta-decay energy (calculated as M(A,Z)-M(A,Z+1), taken from Ame2012)
8663.733 ± 3.851 (keV)
Strong Gamma-rays from Decay of Ga- 81 (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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216.47 36.7 B-
711.19 17.25 B-
828.26 21.65 B-
659.1 6.04 B-,N
914.3 < 0.16 B-,N
1573.4 < 0.16 B-,N
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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- 1.217 S 5
B-N 1.217 S 5
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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Ga- 81 U-235 Thermal 8.165000e-05 2.612800e-05
Ga- 81 U-235 Fast 9.943470e-05 6.363820e-05
Ga- 81 U-235 High 1.776040e-04 1.136670e-04
Ga- 81 U-238 Fast 1.479950e-04 9.471690e-05
Ga- 81 U-238 High 3.386780e-04 2.167540e-04
Ga- 81 Pu-239 Thermal 1.510760e-05 9.668880e-06
Ga- 81 Pu-239 Fast 2.275630e-05 1.456400e-05
Ga- 81 Pu-239 High 1.224590e-04 7.837400e-05
Ga- 81 Pu-241 Thermal 1.232200e-05 7.886070e-06
Ga- 81 Pu-241 Fast 4.085930e-05 2.614990e-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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Ga- 81 U-235 Thermal 8.202790e-05 1.308640e-05
Ga- 81 U-235 Fast 1.001570e-04 6.410070e-05
Ga- 81 U-235 High 1.801200e-04 1.151100e-04
Ga- 81 U-238 Fast 1.513700e-04 9.683900e-05
Ga- 81 U-238 High 3.445530e-04 2.202760e-04
Ga- 81 Pu-239 Thermal 1.514310e-05 9.689480e-06
Ga- 81 Pu-239 Fast 2.284490e-05 1.461730e-05
Ga- 81 Pu-239 High 1.243640e-04 7.953920e-05
Ga- 81 Pu-241 Thermal 1.236190e-05 7.910390e-06
Ga- 81 Pu-241 Fast 4.114610e-05 2.633350e-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