92-U-239


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) 
     239.054293475 ± 0.000002027 (amu)  [mass excess = 50574.046 ± 1.889 (keV) ]
Beta-decay energy (calculated as M(A,Z)-M(A,Z+1), taken from Ame2012) 
     1261.461 ± 1.556 (keV)
Strong Gamma-rays from Decay of U-239 (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 
  ----------------------------------------------------------
         43.53            4.07         B- 
         74.66           49.2          B- 
        662.24            0.18         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-           23.45 M 2
Evaluated Data Libraries 
     Links to the libraries.

Parent Nuclides by Reactions in JENDL-4.0 
     U -238 (Z= 92, A=238), MT=102 (n,γ)