37-Rb-84
Spin
Level energy(keV) Spin & Parity
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ground state 2-
4.63620E+02 6-
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)
83.914375229 ± 0.000002355 (amu) [mass excess = -79758.960 ± 2.194 (keV) ]
Beta-decay energy (calculated as M(A,Z)-M(A,Z+1), taken from Ame2012)
890.595 ± 2.336 (keV)
Strong Gamma-rays from Decay of Rb- 84 (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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881.60 68.9 EC
1016.16 0.35 EC
1897.75 0.74 EC
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215.61 31.31 IT
248.02 63. IT
463.62 33.08 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
B- 32.82 D 7
EC 32.82 D 7
IT 20.26 M 4
Evaluated Data Libraries
Links to the libraries.
Parent Nuclides by Reactions in JENDL-4.0
Rb- 85 (Z= 37, A= 85), MT= 16 (n,2n)
Rb- 86 (Z= 37, A= 86), MT= 17 (n,3n)
Sr- 84 (Z= 38, A= 84), MT=103 (n,p)
Sr- 86 (Z= 38, A= 86), MT=105 (n,t)
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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Rb- 84 U-235 Thermal 2.748520e-12 1.759050e-12
Rb- 84 U-235 Fast 1.551300e-11 9.928320e-12
Rb- 84 U-235 High 4.639050e-09 2.969000e-09
Rb- 84 U-238 Fast 5.969850e-13 3.820700e-13
Rb- 84 U-238 High 1.233440e-10 7.894050e-11
Rb- 84 Pu-239 Thermal 4.918750e-11 3.148000e-11
Rb- 84 Pu-239 Fast 7.145380e-10 4.573040e-10
Rb- 84 Pu-239 High 1.075090e-08 6.880570e-09
Rb- 84 Pu-241 Thermal 7.966850e-11 5.098790e-11
Rb- 84 Pu-241 Fast 1.084210e-11 6.938920e-12
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Rb- 84m U-235 Thermal 3.834770e-10 3.067810e-10
Rb- 84m U-235 Fast 2.075540e-10 1.660430e-10
Rb- 84m U-235 High 7.884150e-08 6.307320e-08
Rb- 84m U-238 High 2.087140e-09 1.669710e-09
Rb- 84m Pu-239 Thermal 1.997210e-08 1.597770e-08
Rb- 84m Pu-239 Fast 6.539490e-09 5.231590e-09
Rb- 84m Pu-239 High 1.796860e-07 1.437490e-07
Rb- 84m Pu-241 Thermal 4.713450e-10 3.770760e-10
Rb- 84m Pu-241 Fast 7.194740e-11 5.755790e-11
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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)
-----------------------------------------------------------
Rb- 84 U-235 Thermal 3.862250e-10 2.471830e-10
Rb- 84 U-235 Fast 2.230670e-10 1.427630e-10
Rb- 84 U-235 High 8.348060e-08 5.342760e-08
Rb- 84 U-238 Fast 5.969850e-13 3.820700e-13
Rb- 84 U-238 High 2.210480e-09 1.414710e-09
Rb- 84 Pu-239 Thermal 2.002130e-08 1.281360e-08
Rb- 84 Pu-239 Fast 7.254020e-09 4.642570e-09
Rb- 84 Pu-239 High 1.904370e-07 1.218800e-07
Rb- 84 Pu-241 Thermal 5.510130e-10 3.526480e-10
Rb- 84 Pu-241 Fast 8.278940e-11 5.298520e-11
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Rb- 84m U-235 Thermal 3.834770e-10 3.067810e-10
Rb- 84m U-235 Fast 2.075540e-10 1.660430e-10
Rb- 84m U-235 High 7.884150e-08 6.307320e-08
Rb- 84m U-238 High 2.087140e-09 1.669710e-09
Rb- 84m Pu-239 Thermal 1.997210e-08 1.597770e-08
Rb- 84m Pu-239 Fast 6.539490e-09 5.231590e-09
Rb- 84m Pu-239 High 1.796860e-07 1.437490e-07
Rb- 84m Pu-241 Thermal 4.713450e-10 3.770760e-10
Rb- 84m Pu-241 Fast 7.194740e-11 5.755790e-11
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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