27-Co-68



Spin
     Level energy(keV)   Spin & Parity       
     ----------------------------------------
       ground state      (7-)                  
       ground state(+X)  (3+)                  
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)
     67.944257589 ± 0.000160798 (amu)  [mass excess = -51923.721 ± 149.782 (keV) ]
Beta-decay energy (calculated as M(A,Z)-M(A,Z+1), taken from Ame2012)
     11540.093 ± 149.812 (keV) 
Strong Gamma-rays from Decay of Co- 68 (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 
  ----------------------------------------------------------
        271.9            43.5          B- 
        815.0           100.05         B- 
       2033.2           100.05         B- 
  ----------------------------------------------------------
        477.8            13.52         B- 
       2033.2            87.2          B- 
       2744.6            12.82         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-           1.6 S 3          
       B-           0.199 S 21       
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)
    -----------------------------------------------------------
     Co- 68    U-235   Thermal   2.466080e-09   1.578290e-09 
     Co- 68    U-235   Fast      1.516870e-08   9.707960e-09 
     Co- 68    U-235   High      4.125650e-06   2.640420e-06 
     Co- 68    U-238   Fast      1.610600e-07   1.030790e-07 
     Co- 68    U-238   High      1.461600e-06   9.354190e-07 
     Co- 68   Pu-239   Thermal   3.079510e-09   1.970890e-09 
     Co- 68   Pu-239   Fast      2.229640e-08   1.426960e-08 
     Co- 68   Pu-239   High      7.815070e-07   5.001640e-07 
     Co- 68   Pu-241   Thermal   3.600580e-09   2.304370e-09 
     Co- 68   Pu-241   Fast      1.059200e-08   6.778900e-09 
    -----------------------------------------------------------
    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)
    -----------------------------------------------------------
     Co- 68    U-235   Thermal   2.858120e-09   1.829190e-09 
     Co- 68    U-235   Fast      1.801950e-08   1.151990e-08 
     Co- 68    U-235   High      4.719750e-06   3.014080e-06 
     Co- 68    U-238   Fast      2.045810e-07   1.309320e-07 
     Co- 68    U-238   High      1.656100e-06   1.059900e-06 
     Co- 68   Pu-239   Thermal   3.214650e-09   2.057370e-09 
     Co- 68   Pu-239   Fast      2.390920e-08   1.529570e-08 
     Co- 68   Pu-239   High      8.658230e-07   5.536010e-07 
     Co- 68   Pu-241   Thermal   3.736770e-09   2.391530e-09 
     Co- 68   Pu-241   Fast      1.180450e-08   7.552000e-09 
    -----------------------------------------------------------
    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