34-Se-87



Spin
     Level energy(keV)   Spin & Parity       
     ----------------------------------------
       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)
     86.928688618 ± 0.000002405 (amu)  [mass excess = -66426.124 ± 2.241 (keV) ]
Beta-decay energy (calculated as M(A,Z)-M(A,Z+1), taken from Ame2012)
     7465.552 ± 3.877 (keV) 
Strong Gamma-rays from Decay of Se- 87 (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 
  ----------------------------------------------------------
        242.5            23.           B- 
        334.0            21.53         B- 
        573.2            11.91         B- 
  ----------------------------------------------------------
     *: 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-           5.50 S 12        
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)
    -----------------------------------------------------------
     Se- 87    U-235   Thermal   7.299370e-03   2.919750e-04 
     Se- 87    U-235   Fast      6.736500e-03   3.031430e-03 
     Se- 87    U-235   High      4.705730e-03   3.011670e-03 
     Se- 87    U-238   Fast      8.483900e-03   2.714840e-03 
     Se- 87    U-238   High      6.073200e-03   3.886850e-03 
     Se- 87   Pu-239   Thermal   1.368270e-03   8.756960e-04 
     Se- 87   Pu-239   Fast      1.801750e-03   1.153120e-03 
     Se- 87   Pu-239   High      2.050740e-03   1.312470e-03 
     Se- 87   Pu-241   Thermal   1.859840e-03   1.190290e-03 
     Se- 87   Pu-241   Fast      2.738490e-03   1.752630e-03 
    -----------------------------------------------------------
    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- 87    U-235   Thermal   7.974160e-03   4.792030e-04 
     Se- 87    U-235   Fast      6.839660e-03   2.190010e-03 
     Se- 87    U-235   High      4.837420e-03   2.165790e-03 
     Se- 87    U-238   Fast      8.824030e-03   2.803790e-03 
     Se- 87    U-238   High      6.389440e-03   2.850800e-03 
     Se- 87   Pu-239   Thermal   1.375930e-03   8.803350e-04 
     Se- 87   Pu-239   Fast      1.815500e-03   1.161370e-03 
     Se- 87   Pu-239   High      2.104050e-03   1.341540e-03 
     Se- 87   Pu-241   Thermal   1.877520e-03   8.439810e-04 
     Se- 87   Pu-241   Fast      2.786400e-03   1.781550e-03 
    -----------------------------------------------------------
    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