60-Nd-149
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)
148.920154849 ± 0.000002595 (amu) [mass excess = -74375.279 ± 2.418 (keV) ]
Beta-decay energy (calculated as M(A,Z)-M(A,Z+1), taken from Ame2012)
1688.400 ± 2.528 (keV)
Strong Gamma-rays from Decay of Nd-149 (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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114.31 19.17 B-
211.31 25.9 B-
270.17 10.72 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- 1.728 H 1
Evaluated Data Libraries
Links to the libraries.
Parent Nuclides by Reactions in JENDL-4.0
Nd-148 (Z= 60, A=148), MT=102 (n,γ)
Nd-150 (Z= 60, A=150), MT= 16 (n,2n)
Pm-149 (Z= 61, A=149), MT=103 (n,p)
Pm-151 (Z= 61, A=151), MT= 32 (n,nd)
Pm-151 (Z= 61, A=151), MT= 41 (n,2np)
Pm-151 (Z= 61, A=151), MT=105 (n,t)
Sm-151 (Z= 62, A=151), MT=106 (n,3He)
Sm-152 (Z= 62, A=152), MT=107 (n,α)
Sm-153 (Z= 62, A=153), MT= 22 (n,nα)
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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Nd-149 U-235 Thermal 6.797180e-05 4.350190e-05
Nd-149 U-235 Fast 3.452870e-05 2.209840e-05
Nd-149 U-235 High 6.960740e-04 4.454870e-04
Nd-149 U-238 Fast 4.971850e-06 3.181990e-06
Nd-149 U-238 High 6.285850e-05 4.022940e-05
Nd-149 Pu-239 Thermal 4.981920e-04 3.188430e-04
Nd-149 Pu-239 Fast 6.011420e-04 3.847310e-04
Nd-149 Pu-239 High 2.351480e-03 1.504950e-03
Nd-149 Pu-241 Thermal 4.066660e-05 2.602660e-05
Nd-149 Pu-241 Fast 7.884070e-05 5.045810e-05
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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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Nd-149 U-235 Thermal 1.079850e-02 3.033720e-04
Nd-149 U-235 Fast 1.034620e-02 2.912950e-04
Nd-149 U-235 High 8.129950e-03 2.597900e-03
Nd-149 U-238 Fast 1.623780e-02 6.502890e-04
Nd-149 U-238 High 1.458850e-02 8.749120e-04
Nd-149 Pu-239 Thermal 1.216060e-02 3.405730e-04
Nd-149 Pu-239 Fast 1.240600e-02 2.481810e-04
Nd-149 Pu-239 High 1.042160e-02 3.332830e-03
Nd-149 Pu-241 Thermal 1.473790e-02 5.896360e-04
Nd-149 Pu-241 Fast 1.457110e-02 8.752590e-04
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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