99-Es-250



Spin
     Level energy(keV)   Spin & Parity       
     ----------------------------------------
       ground state      (6+)                  
       ground state(+X)  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)
     250.078612 ± 0.000107 (amu)  [mass excess = 73227 ± 100 (keV) ]
 	[These values were derived from systematical trend]
Beta-decay energy (calculated as M(A,Z)-M(A,Z+1), taken from Ame2012)
     -846 ± 100 (keV) [derived from systematical trend] 
Strong Gamma-rays from Decay of Es-250 (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 
  ----------------------------------------------------------
        303.41           21.97         EC 
        349.4            20.09         EC 
        829.00           72.5          EC 
  ----------------------------------------------------------
        828.9             5.49         EC 
        989.1            13.33         EC 
       1031.9            10.58         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           8.6 H 1          
       EC           2.22 H 5         
Evaluated Data Libraries
     Links to the libraries. 

Parent Nuclides by Reactions in JENDL-4.0
     Es-251 (Z= 99, A=251), MT= 16 (n,2n)
     Es-252 (Z= 99, A=252), MT= 17 (n,3n)
     Es-253 (Z= 99, A=253), MT= 37 (n,4n)