39-Y-94



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)
     93.911590582 ± 0.000006938 (amu)  [mass excess = -82352.842 ± 6.463 (keV) ]
Beta-decay energy (calculated as M(A,Z)-M(A,Z+1), taken from Ame2012)
     4918.059 ± 6.440 (keV) 
Strong Gamma-rays from Decay of Y- 94 (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 
  ----------------------------------------------------------
        432.2            85.           IT 
        769.9            85.           IT 
       1202.4            15.           IT 
  ----------------------------------------------------------
        550.9             4.93         B- 
        918.74           56.           B- 
       1138.9             5.99         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-           18.7 M 1         
Evaluated Data Libraries
     Links to the libraries. 

Parent Nuclides by Reactions in JENDL-4.0
     Zr- 94 (Z= 40, A= 94), MT=103 (n,p)
     Zr- 95 (Z= 40, A= 95), MT= 28 (n,np)
     Zr- 95 (Z= 40, A= 95), MT=104 (n,d)
     Zr- 96 (Z= 40, A= 96), MT=105 (n,t)

Fission Yields for Fission Products in JENDL-4.0 Fission Yield Data

   - Neutron-induced Fission Yields (from main actinide nuclides) - Independent Fission Yield -
     Product  Nuclide  Energy   Fission Yield  Uncertainty(1σ)
    -----------------------------------------------------------
      Y- 94    U-235   Thermal   3.892410e-03   3.113930e-04 
      Y- 94    U-235   Fast      6.760250e-03   1.554850e-03 
      Y- 94    U-235   High      8.455980e-03   5.411830e-03 
      Y- 94    U-238   Fast      3.390960e-04   2.170220e-04 
      Y- 94    U-238   High      1.649340e-03   1.055570e-03 
      Y- 94   Pu-239   Thermal   6.749850e-03   1.079970e-03 
      Y- 94   Pu-239   Fast      7.273460e-03   2.327500e-03 
      Y- 94   Pu-239   High      9.076310e-03   5.808840e-03 
      Y- 94   Pu-241   Thermal   1.921330e-03   1.229650e-03 
      Y- 94   Pu-241   Fast      1.267920e-03   8.114670e-04 
    -----------------------------------------------------------
    Thermal=0.0253eV, Fast=500keV(Fast reactor spectrum), High=14MeV
   - Neutron-induced Fission Yields (from main actinide nuclides) - Cumulative Fission Yield -
     Product  Nuclide  Energy   Fission Yield  Uncertainty(1σ)
    -----------------------------------------------------------
      Y- 94    U-235   Thermal   6.440010e-02   6.576210e-04 
      Y- 94    U-235   Fast      6.282660e-02   8.966610e-04 
      Y- 94    U-235   High      5.073280e-02   8.109380e-03 
      Y- 94    U-238   Fast      4.609860e-02   1.844010e-03 
      Y- 94    U-238   High      4.695750e-02   2.816320e-03 
      Y- 94   Pu-239   Thermal   4.289540e-02   8.585750e-04 
      Y- 94   Pu-239   Fast      4.216520e-02   5.908940e-04 
      Y- 94   Pu-239   High      3.427540e-02   5.482390e-03 
      Y- 94   Pu-241   Thermal   3.388130e-02   9.492570e-04 
      Y- 94   Pu-241   Fast      3.300330e-02   1.322690e-03 
    -----------------------------------------------------------
    Thermal=0.0253eV, Fast=500keV(Fast reactor spectrum), High=14MeV
      → Neutron-induced and Spontaneous Fission Yields of all nuclides in JENDL-4.0 Fission Yield Data