11-Na-20



Spin
     Level energy(keV)   Spin & Parity       
     ----------------------------------------
       ground state      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)
     20.007354426 ± 0.000001195 (amu)  [mass excess = 6850.604 ± 1.114 (keV) ]
Beta-decay energy (calculated as M(A,Z)-M(A,Z+1), taken from Ame2012)
     -10708.063 ± 27.023 (keV) 
Strong Gamma-rays from Decay of Na- 20 (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 
  ----------------------------------------------------------
       1633.60           79.3          B+ 
       2852.          <   0.21         B+ 
       8638.          <   2.59         B+ 
       1633.60           79.73         B+ 
       3332.54            0.16         B+ 
      11258.9             0.17         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+           447.9 MS 23      
       B+           447.9 MS 23      
Evaluated Data Libraries
     Links to the libraries. 

Parent Nuclides by Reactions in JENDL-4.0