35-Br-77
Spin
Level energy(keV) Spin & Parity
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ground state 3/2-
1.05870E+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)
76.921379198 ± 0.000003017 (amu) [mass excess = -73234.805 ± 2.811 (keV) ]
Beta-decay energy (calculated as M(A,Z)-M(A,Z+1), taken from Ame2012)
-3065.363 ± 3.424 (keV)
Strong Gamma-rays from Decay of Br- 77 (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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238.98 23.1 EC
297.23 4.16 EC
520.69 22.41 EC
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105.87 13.8 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 57.036 H 5
IT 4.28 M 10
Evaluated Data Libraries
Links to the libraries.
Parent Nuclides by Reactions in JENDL-4.0
Br- 79 (Z= 35, A= 79), MT= 17 (n,3n)
Kr- 78 (Z= 36, A= 78), MT= 28 (n,np)
Kr- 78 (Z= 36, A= 78), 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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Br- 77 U-235 High 5.744410e-13 3.676420e-13
Br- 77 Pu-239 Thermal 7.716110e-14 4.938310e-14
Br- 77 Pu-239 Fast 3.838700e-14 2.456770e-14
Br- 77 Pu-239 High 5.062880e-12 3.240250e-12
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Br- 77m U-235 High 3.558230e-12 2.277260e-12
Br- 77m U-238 High 5.163020e-14 3.304330e-14
Br- 77m Pu-239 Thermal 2.525870e-13 1.616560e-13
Br- 77m Pu-239 Fast 1.452830e-13 9.298130e-14
Br- 77m Pu-239 High 3.136070e-11 2.007090e-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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Br- 77 U-235 High 4.132670e-12 2.634410e-12
Br- 77 U-238 High 5.163020e-14 1.807010e-14
Br- 77 Pu-239 Thermal 3.297480e-13 2.110380e-13
Br- 77 Pu-239 Fast 1.836700e-13 1.175490e-13
Br- 77 Pu-239 High 3.642360e-11 2.327020e-11
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Br- 77m U-235 High 3.558230e-12 2.273890e-12
Br- 77m U-238 High 5.163020e-14 3.300750e-14
Br- 77m Pu-239 Thermal 2.525870e-13 1.616560e-13
Br- 77m Pu-239 Fast 1.452830e-13 9.298130e-14
Br- 77m Pu-239 High 3.136070e-11 2.005790e-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