34-Se-87
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)
86.928688618 ± 0.000002405 (amu) [mass excess = -66426.124 ± 2.241 (keV) ]
Beta-decay energy (calculated as M(A,Z)-M(A,Z+1), taken from Ame2012)
7465.552 ± 3.877 (keV)
Strong Gamma-rays from Decay of Se- 87 (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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242.5 23. B-
334.0 21.53 B-
573.2 11.91 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- 5.50 S 12
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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Se- 87 U-235 Thermal 7.299370e-03 2.919750e-04
Se- 87 U-235 Fast 6.736500e-03 3.031430e-03
Se- 87 U-235 High 4.705730e-03 3.011670e-03
Se- 87 U-238 Fast 8.483900e-03 2.714840e-03
Se- 87 U-238 High 6.073200e-03 3.886850e-03
Se- 87 Pu-239 Thermal 1.368270e-03 8.756960e-04
Se- 87 Pu-239 Fast 1.801750e-03 1.153120e-03
Se- 87 Pu-239 High 2.050740e-03 1.312470e-03
Se- 87 Pu-241 Thermal 1.859840e-03 1.190290e-03
Se- 87 Pu-241 Fast 2.738490e-03 1.752630e-03
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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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Se- 87 U-235 Thermal 7.974160e-03 4.792030e-04
Se- 87 U-235 Fast 6.839660e-03 2.190010e-03
Se- 87 U-235 High 4.837420e-03 2.165790e-03
Se- 87 U-238 Fast 8.824030e-03 2.803790e-03
Se- 87 U-238 High 6.389440e-03 2.850800e-03
Se- 87 Pu-239 Thermal 1.375930e-03 8.803350e-04
Se- 87 Pu-239 Fast 1.815500e-03 1.161370e-03
Se- 87 Pu-239 High 2.104050e-03 1.341540e-03
Se- 87 Pu-241 Thermal 1.877520e-03 8.439810e-04
Se- 87 Pu-241 Fast 2.786400e-03 1.781550e-03
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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