40-Zr-87



Spin
     Level energy(keV)   Spin & Parity       
     ----------------------------------------
       ground state      (9/2)+                
       3.35840E+02       (1/2)-                
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)
     86.914817988 ± 0.000004501 (amu)  [mass excess = -79346.533 ± 4.194 (keV) ]
Beta-decay energy (calculated as M(A,Z)-M(A,Z+1), taken from Ame2012)
     -5473.234 ± 7.979 (keV) 
Strong Gamma-rays from Decay of Zr- 87 (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 
  ----------------------------------------------------------
       1024.              0.78         B+ 
       1210.              0.92         B+ 
       1227.              2.8          B+ 
  ----------------------------------------------------------
        135.06           27.2          IT 
        201.15           96.4          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 
       B+           1.68 H 1         
       IT           14.0 S 2         
Evaluated Data Libraries
     Links to the libraries. 

Parent Nuclides by Reactions in JENDL-4.0