40-Zr-104
Spin
Level energy(keV) Spin & Parity
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ground state 0+
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)
103.929435691 ± 0.000010256 (amu) [mass excess = -65730.230 ± 9.554 (keV) ]
Beta-decay energy (calculated as M(A,Z)-M(A,Z+1), taken from Ame2012)
6094.952 ± 9.699 (keV)
Strong Gamma-rays from Decay of Zr-104 (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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100.9 6.1 B-
445.0 5.49 B-
504.7 5.49 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- 1.2 S 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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Zr-104 U-235 Thermal 8.266130e-04 1.322580e-04
Zr-104 U-235 Fast 1.161860e-03 7.435910e-04
Zr-104 U-235 High 7.672720e-04 4.910540e-04
Zr-104 U-238 Fast 1.012960e-02 6.482960e-03
Zr-104 U-238 High 4.658860e-03 2.981670e-03
Zr-104 Pu-239 Thermal 6.100830e-04 3.904530e-04
Zr-104 Pu-239 Fast 5.573800e-04 3.567240e-04
Zr-104 Pu-239 High 3.476450e-04 2.224930e-04
Zr-104 Pu-241 Thermal 2.739320e-03 1.753160e-03
Zr-104 Pu-241 Fast 3.016520e-03 1.930580e-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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Zr-104 U-235 Thermal 8.322850e-04 9.169930e-05
Zr-104 U-235 Fast 1.164180e-03 7.450740e-04
Zr-104 U-235 High 7.744780e-04 4.949270e-04
Zr-104 U-238 Fast 1.029240e-02 4.629910e-03
Zr-104 U-238 High 4.750240e-03 3.036860e-03
Zr-104 Pu-239 Thermal 6.108170e-04 3.909240e-04
Zr-104 Pu-239 Fast 5.580320e-04 3.571410e-04
Zr-104 Pu-239 High 3.494080e-04 2.234750e-04
Zr-104 Pu-241 Thermal 2.747700e-03 1.758240e-03
Zr-104 Pu-241 Fast 3.024710e-03 1.935820e-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