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