57-La-131



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)
     130.910070000 ± 0.000030000 (amu)  [mass excess = -83769.256 ± 27.945 (keV) ]
Beta-decay energy (calculated as M(A,Z)-M(A,Z+1), taken from Ame2012)
     -4060.816 ± 43.092 (keV) 
Strong Gamma-rays from Decay of La-131 (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 
  ----------------------------------------------------------
         26.20           36.45         IT 
        108.9            10.85         IT 
        169.4            81.           IT 
  ----------------------------------------------------------
        108.08           25.           EC 
        365.16           16.93         EC 
        417.78           17.95         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           59 M 2           
Evaluated Data Libraries
     Links to the libraries. 

Parent Nuclides by Reactions in JENDL-4.0