39-Y-87
Spin
Level energy(keV) Spin & Parity
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ground state 1/2-
3.80820E+02 9/2+
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)
86.910876138 ± 0.000001672 (amu) [mass excess = -83018.343 ± 1.558 (keV) ]
Beta-decay energy (calculated as M(A,Z)-M(A,Z+1), taken from Ame2012)
-3671.810 ± 4.461 (keV)
Strong Gamma-rays from Decay of Y- 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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388.53 82.2 EC
484.81 89.84 EC
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380.79 78.05 IT
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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
EC 79.8 H 3
EC 13.37 H 3
IT 13.37 H 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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Y- 87 U-235 Thermal 3.528780e-15 2.258420e-15
Y- 87 U-235 Fast 1.135090e-15 7.264540e-16
Y- 87 U-235 High 4.810950e-12 3.079000e-12
Y- 87 U-238 High 1.946440e-14 1.245720e-14
Y- 87 Pu-239 Thermal 1.017750e-12 6.513590e-13
Y- 87 Pu-239 Fast 2.525640e-13 1.616410e-13
Y- 87 Pu-239 High 3.753090e-11 2.401980e-11
Y- 87 Pu-241 Thermal 7.246690e-15 4.637880e-15
Y- 87 Pu-241 Fast 1.091450e-15 6.985270e-16
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Y- 87m U-235 High 6.495240e-10 5.196190e-10
Y- 87m Pu-239 High 2.778690e-09 2.222950e-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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Y- 87 U-235 Thermal 3.528780e-15 2.258420e-15
Y- 87 U-235 Fast 1.135090e-15 7.264540e-16
Y- 87 U-235 High 6.441380e-10 4.122470e-10
Y- 87 U-238 High 1.946440e-14 1.245720e-14
Y- 87 Pu-239 Thermal 1.017750e-12 6.513590e-13
Y- 87 Pu-239 Fast 2.525640e-13 1.616410e-13
Y- 87 Pu-239 High 2.772600e-09 1.774460e-09
Y- 87 Pu-241 Thermal 7.246690e-15 4.637880e-15
Y- 87 Pu-241 Fast 1.091450e-15 6.985270e-16
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Y- 87m U-235 High 6.495240e-10 5.196190e-10
Y- 87m Pu-239 High 2.778690e-09 2.222950e-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