34-Se-77
Spin
Level energy(keV) Spin & Parity
----------------------------------------
ground state 1/2-
1.62000E+02 7/2+
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)
76.919914154 ± 0.000000067 (amu) [mass excess = -74599.485 ± 0.063 (keV) ]
Beta-decay energy (calculated as M(A,Z)-M(A,Z+1), taken from Ame2012)
-1364.680 ± 2.810 (keV)
Strong Gamma-rays from Decay of Se- 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
----------------------------------------------------------
162.0 53.2 IT
----------------------------------------------------------
*: 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
IT 17.36 S 5
Cross Sections (taken from JENDL-4.0)
Table of cross sections, Se-77.
Figures of cross sections, Se-77: type-1: type-2: type-3.
type-1: total, elastic and inelastic scattering, capture and fision cross sections
type-2: same as type-1 but cross sections are averaged in 70 energy group intervals
type-3: threshold reaction cross sections
Evaluated Data Libraries
Links to the libraries.
Parent Nuclides by Reactions in JENDL-4.0
Se- 76 (Z= 34, A= 76), MT=102 (n,γ)
Se- 77 (Z= 34, A= 77), MT= 2 (Elastic scattering)
Se- 77 (Z= 34, A= 77), MT= 4 (Inelastic scattering)
Se- 78 (Z= 34, A= 78), MT= 16 (n,2n)
Se- 79 (Z= 34, A= 79), MT= 17 (n,3n)
Br- 79 (Z= 35, A= 79), MT= 32 (n,nd)
Br- 79 (Z= 35, A= 79), MT=105 (n,t)
Kr- 80 (Z= 36, A= 80), MT=107 (n,α)
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)
-----------------------------------------------------------
Se- 77 U-235 Thermal 2.808480e-12 1.797430e-12
Se- 77 U-235 Fast 1.000930e-11 6.405980e-12
Se- 77 U-235 High 9.884970e-10 6.326410e-10
Se- 77 U-238 Fast 1.094270e-13 7.003300e-14
Se- 77 U-238 High 5.521520e-11 3.533780e-11
Se- 77 Pu-239 Thermal 3.973420e-10 2.542990e-10
Se- 77 Pu-239 Fast 2.962500e-10 1.896000e-10
Se- 77 Pu-239 High 2.763780e-09 1.768820e-09
Se- 77 Pu-241 Thermal 1.666760e-11 1.066730e-11
Se- 77 Pu-241 Fast 1.433800e-11 9.176330e-12
-----------------------------------------------------------
Se- 77m U-235 Thermal 1.830790e-11 1.171710e-11
Se- 77m U-235 Fast 7.481560e-11 4.788200e-11
Se- 77m U-235 High 1.184910e-08 7.583420e-09
Se- 77m U-238 Fast 8.179190e-13 5.234680e-13
Se- 77m U-238 High 6.618660e-10 4.235940e-10
Se- 77m Pu-239 Thermal 2.590190e-09 1.657720e-09
Se- 77m Pu-239 Fast 2.214340e-09 1.417180e-09
Se- 77m Pu-239 High 3.312950e-08 2.120290e-08
Se- 77m Pu-241 Thermal 1.086530e-10 6.953760e-11
Se- 77m Pu-241 Fast 1.071710e-10 6.858920e-11
-----------------------------------------------------------
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)
-----------------------------------------------------------
Se- 77 U-235 Thermal 7.947640e-05 6.369640e-06
Se- 77 U-235 Fast 3.174370e-04 3.499440e-05
Se- 77 U-235 High 6.668620e-04 7.325190e-05
Se- 77 U-238 Fast 3.303440e-05 3.631200e-06
Se- 77 U-238 High 3.132810e-04 2.503690e-05
Se- 77 Pu-239 Thermal 7.233530e-05 7.958410e-06
Se- 77 Pu-239 Fast 1.269130e-04 1.015340e-05
Se- 77 Pu-239 High 2.371830e-04 2.607480e-05
Se- 77 Pu-241 Thermal 1.895060e-05 4.360810e-06
Se- 77 Pu-241 Fast 9.686180e-05 1.550900e-05
-----------------------------------------------------------
Se- 77m U-235 Thermal 6.278650e-06 1.004580e-06
Se- 77m U-235 Fast 2.507760e-05 8.024820e-06
Se- 77m U-235 High 5.269290e-05 1.211940e-05
Se- 77m U-238 Fast 2.609720e-06 4.175550e-07
Se- 77m U-238 High 2.474980e-05 2.722470e-06
Se- 77m Pu-239 Thermal 5.716840e-06 6.288530e-07
Se- 77m Pu-239 Fast 1.002810e-05 8.022530e-07
Se- 77m Pu-239 High 1.876770e-05 6.005680e-06
Se- 77m Pu-241 Thermal 1.497200e-06 4.791030e-07
Se- 77m Pu-241 Fast 7.652180e-06 2.448700e-06
-----------------------------------------------------------
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