27-Co-68
Spin
Level energy(keV) Spin & Parity
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ground state (7-)
ground state(+X) (3+)
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)
67.944257589 ± 0.000160798 (amu) [mass excess = -51923.721 ± 149.782 (keV) ]
Beta-decay energy (calculated as M(A,Z)-M(A,Z+1), taken from Ame2012)
11540.093 ± 149.812 (keV)
Strong Gamma-rays from Decay of Co- 68 (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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271.9 43.5 B-
815.0 100.05 B-
2033.2 100.05 B-
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477.8 13.52 B-
2033.2 87.2 B-
2744.6 12.82 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- 1.6 S 3
B- 0.199 S 21
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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Co- 68 U-235 Thermal 2.466080e-09 1.578290e-09
Co- 68 U-235 Fast 1.516870e-08 9.707960e-09
Co- 68 U-235 High 4.125650e-06 2.640420e-06
Co- 68 U-238 Fast 1.610600e-07 1.030790e-07
Co- 68 U-238 High 1.461600e-06 9.354190e-07
Co- 68 Pu-239 Thermal 3.079510e-09 1.970890e-09
Co- 68 Pu-239 Fast 2.229640e-08 1.426960e-08
Co- 68 Pu-239 High 7.815070e-07 5.001640e-07
Co- 68 Pu-241 Thermal 3.600580e-09 2.304370e-09
Co- 68 Pu-241 Fast 1.059200e-08 6.778900e-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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Co- 68 U-235 Thermal 2.858120e-09 1.829190e-09
Co- 68 U-235 Fast 1.801950e-08 1.151990e-08
Co- 68 U-235 High 4.719750e-06 3.014080e-06
Co- 68 U-238 Fast 2.045810e-07 1.309320e-07
Co- 68 U-238 High 1.656100e-06 1.059900e-06
Co- 68 Pu-239 Thermal 3.214650e-09 2.057370e-09
Co- 68 Pu-239 Fast 2.390920e-08 1.529570e-08
Co- 68 Pu-239 High 8.658230e-07 5.536010e-07
Co- 68 Pu-241 Thermal 3.736770e-09 2.391530e-09
Co- 68 Pu-241 Fast 1.180450e-08 7.552000e-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