41-Nb-91
Spin
Level energy(keV) Spin & Parity
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ground state 9/2+
1.04600E+02 1/2-
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)
90.906989658 ± 0.000003679 (amu) [mass excess = -86638.575 ± 3.428 (keV) ]
Beta-decay energy (calculated as M(A,Z)-M(A,Z+1), taken from Ame2012)
-4429.863 ± 6.926 (keV)
Strong Gamma-rays from Decay of Nb- 91 (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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104.62 0.58 IT
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194.1 33.63 IT
1790.6 36.35 IT
1984.6 62.6 IT
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1204.67 2.02 EC
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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 6.8E+2 Y 13
EC 60.86 D 22
Evaluated Data Libraries
Links to the libraries.
Parent Nuclides by Reactions in JENDL-4.0
Nb- 93 (Z= 41, A= 93), MT= 17 (n,3n)
Mo- 92 (Z= 42, A= 92), MT= 28 (n,np)
Mo- 92 (Z= 42, A= 92), MT=104 (n,d)
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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Nb- 91 U-235 High 2.700520e-11 1.728330e-11
Nb- 91 U-238 High 2.265590e-14 1.449980e-14
Nb- 91 Pu-239 Thermal 5.392580e-13 3.451260e-13
Nb- 91 Pu-239 Fast 2.034810e-13 1.302280e-13
Nb- 91 Pu-239 High 3.890040e-10 2.489630e-10
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Nb- 91m Pu-239 High 7.472670e-11 5.978140e-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)
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Nb- 91 U-235 High 2.700520e-11 1.728330e-11
Nb- 91 U-238 High 2.265590e-14 1.449980e-14
Nb- 91 Pu-239 Thermal 5.392580e-13 3.451260e-13
Nb- 91 Pu-239 Fast 2.034810e-13 1.302280e-13
Nb- 91 Pu-239 High 4.585000e-10 2.809470e-10
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Nb- 91m Pu-239 High 7.472670e-11 5.978140e-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