19-K-50



Spin
     Level energy(keV)   Spin & Parity       
     ----------------------------------------
       ground state      0-                    
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)
     49.972380017 ± 0.000008300 (amu)  [mass excess = -25727.848 ± 7.731 (keV) ]
Beta-decay energy (calculated as M(A,Z)-M(A,Z+1), taken from Ame2012)
     13861.376 ± 7.892 (keV) 
Strong Gamma-rays from Decay of K- 50 (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 
  ----------------------------------------------------------
        101.              --           IT 
        127.4            45.1          IT 
        171.4            55.           IT 
  ----------------------------------------------------------
       1027.0             6.4          B- 
       3008.9             1.29         B- 
       4035.6             2.14         B- 
       2023.0             4.99        B-,N
       3859.7             0.39        B-,N
       4072.0             0.36        B-,N
  ----------------------------------------------------------
     *: 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-           472 MS 4         
       B-N          472 MS 4         
Evaluated Data Libraries
     Links to the libraries. 

Parent Nuclides by Reactions in JENDL-4.0