57-La-138



Spin
     Level energy(keV)   Spin & Parity       
     ----------------------------------------
       ground state      5+                    
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)
     137.907114919 ± 0.000003684 (amu)  [mass excess = -86521.895 ± 3.432 (keV) ]
Beta-decay energy (calculated as M(A,Z)-M(A,Z+1), taken from Ame2012)
     1046.841 ± 10.166 (keV) 
Strong Gamma-rays from Decay of La-138 (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 
  ----------------------------------------------------------
        788.74           34.4          B- 
       1435.80           65.6          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 
       B-           1.02E+11 Y 1     
       EC           1.02E+11 Y 1     
Cross Sections (taken from JENDL-4.0)
     Table of cross sections, La-138.
     Figures of cross sections, La-138:  type-1:  type-2:  type-3.
       type-1: total, elastic and inelastic scattering, capture and fision cross sections
       type-2: same as type-1 but cross sections are averaged in 70 energy group intervals
       type-3: threshold reaction cross sections
Evaluated Data Libraries
     Links to the libraries. 

Parent Nuclides by Reactions in JENDL-4.0
     La-138 (Z= 57, A=138), MT=  2 (Elastic scattering)
     La-138 (Z= 57, A=138), MT=  4 (Inelastic scattering)
     La-139 (Z= 57, A=139), MT= 16 (n,2n)
     La-140 (Z= 57, A=140), MT= 17 (n,3n)
     Ce-140 (Z= 58, A=140), MT= 32 (n,nd)
     Ce-140 (Z= 58, A=140), MT=105 (n,t)
     Pr-141 (Z= 59, A=141), 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)
    -----------------------------------------------------------
     La-138    U-235   Thermal   3.174950e-07   2.031970e-07 
     La-138    U-235   Fast      9.749880e-08   6.239920e-08 
     La-138    U-235   High      7.400140e-06   4.736090e-06 
     La-138    U-238   Fast      1.760660e-10   1.126820e-10 
     La-138    U-238   High      4.344730e-08   2.780630e-08 
     La-138   Pu-239   Thermal   6.159030e-07   3.941780e-07 
     La-138   Pu-239   Fast      5.389130e-07   3.449040e-07 
     La-138   Pu-239   High      6.283070e-05   4.021170e-05 
     La-138   Pu-241   Thermal   7.521210e-09   4.813580e-09 
     La-138   Pu-241   Fast      7.414420e-09   4.745230e-09 
    -----------------------------------------------------------
    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)
    -----------------------------------------------------------
     La-138    U-235   Thermal   3.174950e-07   1.272830e-08 
     La-138    U-235   Fast      9.749880e-08   3.913110e-09 
     La-138    U-235   High      7.400140e-06   4.729070e-06 
     La-138    U-238   Fast      1.760660e-10   1.126410e-10 
     La-138    U-238   High      4.344730e-08   2.777610e-08 
     La-138   Pu-239   Thermal   6.159030e-07   3.941780e-07 
     La-138   Pu-239   Fast      5.389130e-07   3.449040e-07 
     La-138   Pu-239   High      6.283070e-05   4.018560e-05 
     La-138   Pu-241   Thermal   7.521210e-09   4.812800e-09 
     La-138   Pu-241   Fast      7.414420e-09   4.745230e-09 
    -----------------------------------------------------------
    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