65-Tb-154



Spin
     Level energy(keV)   Spin & Parity       
     ----------------------------------------
       ground state      0                     
       ground state(+X)  3-                    
       ground state(+Y)  7-                    
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)
     153.924684767 ± 0.000048661 (amu)  [mass excess = -70155.687 ± 45.328 (keV) ]
Beta-decay energy (calculated as M(A,Z)-M(A,Z+1), taken from Ame2012)
     237.987 ± 45.903 (keV) 
Strong Gamma-rays from Decay of Tb-154 (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 
  ----------------------------------------------------------
        123.07           25.84         EC 
       1274.44           10.51         EC 
       2187.10            9.94         EC 
  ----------------------------------------------------------
        123.07           30.3          EC 
        247.94           22.09         EC 
        540.18           19.55         EC 
  ----------------------------------------------------------
        247.94           78.81         EC 
        346.70           69.13         EC 
       1419.81           46.15         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 
       EC           9.4 H 4          
       EC           21.5 H 4         
       EC           22.7 H 5         
Evaluated Data Libraries
     Links to the libraries. 

Parent Nuclides by Reactions in JENDL-4.0
     Dy-154 (Z= 66, A=154), MT=103 (n,p)
     Dy-156 (Z= 66, A=156), MT= 32 (n,nd)
     Dy-156 (Z= 66, A=156), 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)
    -----------------------------------------------------------
     Tb-154   Pu-239   High      2.242220e-11   1.793780e-11 
    -----------------------------------------------------------
     Tb-154m  Pu-239   High      3.636300e-10   2.909040e-10 
     Tb-154m  Pu-239   High      1.013870e-10   8.110990e-11 
    -----------------------------------------------------------
    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)
    -----------------------------------------------------------
     Tb-154   Pu-239   High      1.020910e-10   1.793780e-11 
    -----------------------------------------------------------
     Tb-154m  Pu-239   High      3.654550e-10   2.909040e-10 
     Tb-154m  Pu-239   High      1.013870e-10   8.110990e-11 
    -----------------------------------------------------------
    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