55-Cs-141



Spin
     Level energy(keV)   Spin & Parity       
     ----------------------------------------
       ground state      7/2+                  
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)
     140.920045491 ± 0.000009785 (amu)  [mass excess = -74477.145 ± 9.115 (keV) ]
Beta-decay energy (calculated as M(A,Z)-M(A,Z+1), taken from Ame2012)
     5255.636 ± 9.558 (keV) 
Strong Gamma-rays from Decay of Cs-141 (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 
  ----------------------------------------------------------
         48.53            7.9          B- 
        561.63            4.66         B- 
       1194.02            3.95         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-           24.84 S 17       
Evaluated Data Libraries
     Links to the libraries. 

Parent Nuclides by Reactions in JENDL-4.0 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)
    -----------------------------------------------------------
     Cs-141    U-235   Thermal   2.910700e-02   5.821390e-04 
     Cs-141    U-235   Fast      3.484010e-02   1.114880e-02 
     Cs-141    U-235   High      2.198560e-02   7.035380e-03 
     Cs-141    U-238   Fast      1.913740e-02   6.123980e-03 
     Cs-141    U-238   High      2.495440e-02   7.985400e-03 
     Cs-141   Pu-239   Thermal   2.866680e-02   4.586690e-03 
     Cs-141   Pu-239   Fast      2.617100e-02   8.374730e-03 
     Cs-141   Pu-239   High      1.200810e-02   3.842580e-03 
     Cs-141   Pu-241   Thermal   2.755650e-02   8.818080e-03 
     Cs-141   Pu-241   Fast      2.825010e-02   9.040000e-03 
    -----------------------------------------------------------
    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)
    -----------------------------------------------------------
     Cs-141    U-235   Thermal   4.161780e-02   5.873470e-04 
     Cs-141    U-235   Fast      4.377460e-02   7.019290e-03 
     Cs-141    U-235   High      2.461870e-02   5.654100e-03 
     Cs-141    U-238   Fast      5.109130e-02   5.619960e-03 
     Cs-141    U-238   High      3.856990e-02   6.165530e-03 
     Cs-141   Pu-239   Thermal   3.346190e-02   3.681460e-03 
     Cs-141   Pu-239   Fast      3.099690e-02   7.130460e-03 
     Cs-141   Pu-239   High      1.317830e-02   3.029080e-03 
     Cs-141   Pu-241   Thermal   4.248110e-02   6.796480e-03 
     Cs-141   Pu-241   Fast      4.414900e-02   1.016280e-02 
    -----------------------------------------------------------
    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