19-K-38



Spin
     Level energy(keV)   Spin & Parity       
     ----------------------------------------
       ground state      3+                    
       1.30400E+02       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)
     37.969081117 ± 0.000000209 (amu)  [mass excess = -28800.754 ± 0.195 (keV) ]
Beta-decay energy (calculated as M(A,Z)-M(A,Z+1), taken from Ame2012)
     -6742.253 ± 0.063 (keV) 
Strong Gamma-rays from Decay of K- 38 (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 
  ----------------------------------------------------------
       1769.0           9.E-03         EC 
       2167.5            99.86         EC 
       3935.6             0.14         EC 
  ----------------------------------------------------------
     *: 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 
       EC           7.636 M 18       
       EC           924.0 MS 5       
Evaluated Data Libraries
     Links to the libraries. 

Parent Nuclides by Reactions in JENDL-4.0
     K - 39 (Z= 19, A= 39), MT= 16 (n,2n)