54-Xe-139



Spin
     Level energy(keV)   Spin & Parity       
     ----------------------------------------
       ground state      3/2-                  
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)
     138.918792203 ± 0.000002300 (amu)  [mass excess = -75644.575 ± 2.142 (keV) ]
Beta-decay energy (calculated as M(A,Z)-M(A,Z+1), taken from Ame2012)
     5056.565 ± 3.799 (keV) 
Strong Gamma-rays from Decay of Xe-139 (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 
  ----------------------------------------------------------
        218.59           56.           B- 
        289.78            9.18         B- 
        296.53           21.73         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-           39.68 S 14       
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)
    -----------------------------------------------------------
     Xe-139    U-235   Thermal   4.316710e-02   8.633420e-04 
     Xe-139    U-235   Fast      3.784930e-02   1.513970e-03 
     Xe-139    U-235   High      1.879530e-02   2.067490e-03 
     Xe-139    U-238   Fast      3.284460e-02   5.255140e-03 
     Xe-139    U-238   High      2.536810e-02   2.029450e-03 
     Xe-139   Pu-239   Thermal   2.791510e-02   1.116610e-03 
     Xe-139   Pu-239   Fast      2.936160e-02   9.395680e-03 
     Xe-139   Pu-239   High      1.002090e-02   3.206680e-03 
     Xe-139   Pu-241   Thermal   4.085180e-02   2.451110e-03 
     Xe-139   Pu-241   Fast      4.368130e-02   1.397800e-02 
    -----------------------------------------------------------
    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)
    -----------------------------------------------------------
     Xe-139    U-235   Thermal   5.031810e-02   1.010150e-03 
     Xe-139    U-235   Fast      4.218010e-02   1.186510e-03 
     Xe-139    U-235   High      2.060590e-02   1.646350e-03 
     Xe-139    U-238   Fast      5.326740e-02   3.192750e-03 
     Xe-139    U-238   High      3.396370e-02   2.035550e-03 
     Xe-139   Pu-239   Thermal   3.085020e-02   8.640040e-04 
     Xe-139   Pu-239   Fast      3.114200e-02   7.163870e-03 
     Xe-139   Pu-239   High      1.061010e-02   2.438790e-03 
     Xe-139   Pu-241   Thermal   4.922190e-02   1.377970e-03 
     Xe-139   Pu-241   Fast      5.142700e-02   1.183690e-02 
    -----------------------------------------------------------
    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