62-Sm-157



Spin
     Level energy(keV)   Spin & Parity       
     ----------------------------------------
       ground state      (3/2-)                
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)
     156.928418698 ± 0.000004759 (amu)  [mass excess = -66677.553 ± 4.434 (keV) ]
Beta-decay energy (calculated as M(A,Z)-M(A,Z+1), taken from Ame2012)
     2780.744 ± 6.179 (keV) 
Strong Gamma-rays from Decay of Sm-157 (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 
  ----------------------------------------------------------
        196.46           16.63         B- 
        197.87           56.           B- 
        394.35           11.93         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-           482 S 4          
Evaluated Data Libraries
     Links to the libraries. 

Parent Nuclides by Reactions in JENDL-4.0
     Eu-157 (Z= 63, A=157), MT=103 (n,p)
     Gd-160 (Z= 64, A=160), MT=107 (n,α)

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)
    -----------------------------------------------------------
     Sm-157    U-235   Thermal   2.662760e-05   1.704170e-05 
     Sm-157    U-235   Fast      3.158480e-05   2.021420e-05 
     Sm-157    U-235   High      2.125510e-04   1.360330e-04 
     Sm-157    U-238   Fast      2.961100e-05   1.895100e-05 
     Sm-157    U-238   High      1.611760e-04   1.031520e-04 
     Sm-157   Pu-239   Thermal   4.105950e-04   2.627810e-04 
     Sm-157   Pu-239   Fast      6.380870e-04   4.083750e-04 
     Sm-157   Pu-239   High      5.686590e-04   3.639420e-04 
     Sm-157   Pu-241   Thermal   2.894670e-04   1.852590e-04 
     Sm-157   Pu-241   Fast      5.433910e-04   3.477700e-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)
    -----------------------------------------------------------
     Sm-157    U-235   Thermal   6.077970e-05   9.738890e-06 
     Sm-157    U-235   Fast      1.051340e-04   4.740760e-05 
     Sm-157    U-235   High      3.141510e-04   1.411590e-04 
     Sm-157    U-238   Fast      4.137060e-04   1.861030e-04 
     Sm-157    U-238   High      7.989240e-04   2.553810e-04 
     Sm-157   Pu-239   Thermal   7.065310e-04   1.130630e-04 
     Sm-157   Pu-239   Fast      9.969770e-04   2.293380e-04 
     Sm-157   Pu-239   High      6.943130e-04   4.440700e-04 
     Sm-157   Pu-241   Thermal   1.349670e-03   1.079570e-04 
     Sm-157   Pu-241   Fast      1.612950e-03   7.263730e-04 
    -----------------------------------------------------------
    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