87-Fr-216



Spin
     Level energy(keV)   Spin & Parity       
     ----------------------------------------
       ground state      (1-)                  
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)
     216.003189865 ± 0.000004510 (amu)  [mass excess = 2971.341 ± 4.201 (keV) ]
Beta-decay energy (calculated as M(A,Z)-M(A,Z+1), taken from Ame2012)
     -320.022 ± 9.548 (keV) 
Strong Gamma-rays from Decay of Fr-216 (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 
  ----------------------------------------------------------
         45.0             --         Alpha
         55.0         ~   0.03       Alpha
        160.3             --         Alpha
  ----------------------------------------------------------
         45.0          *  0.07       Alpha
        160.3          *  0.5        Alpha
  ----------------------------------------------------------
     *: relative, ~ approximate, ? calculated or estimatted 
     >: greater than or equal to, <: less than or equal to  
  [ Intensities; total intensity of the nuclide is 100(%). ]
Evaluated Data Libraries
     Links to the libraries. 

Parent Nuclides by Reactions in JENDL-4.0