55-Cs-124



Spin
     Level energy(keV)   Spin & Parity       
     ----------------------------------------
       ground state      1+                    
       4.62540E+02       (7)+                  
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)
     123.912257798 ± 0.000008914 (amu)  [mass excess = -81731.334 ± 8.304 (keV) ]
Beta-decay energy (calculated as M(A,Z)-M(A,Z+1), taken from Ame2012)
     -2641.560 ± 15.004 (keV) 
Strong Gamma-rays from Decay of Cs-124 (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 
  ----------------------------------------------------------
        354.01           47.           EC 
        492.55            4.23         EC 
        914.84            4.7          EC 
  ----------------------------------------------------------
         89.50           46.5          IT 
         96.55           45.75         IT 
        211.64           49.5          IT 
  ----------------------------------------------------------
     *: 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           30.8 S 5         
       IT           6.3 S 2          
Evaluated Data Libraries
     Links to the libraries. 

Parent Nuclides by Reactions in JENDL-4.0