57-La-139
 basic
 fission yield
 n-XS summary
 XS graphs
 element
57-lanthanum-139
Total Cross Section
  • at 0.0253 eV = 19.06 b
  • Maxwell avg. at 0.0253 eV = 18.05 b
  • at 14 MeV = 5.067 b
  • Fission spectrum avg. = 6.227 b
  • g-factor = 1.0685
Elastic Scattering Cross Section
  • at 0.0253 eV = 10.13 b
  • Maxwell avg. at 0.0253 eV = 10.13 b
  • at 14 MeV = 2.907 b
  • Fission spectrum avg. = 5.241 b
  • g-factor = 1.1282
Total Inelastic Cross Section
  • at 14 MeV = 349.0 mb
  • Fission spectrum avg. = 973.8 mb
(n,2n) Cross Section
  • at 14 MeV = 1.800 b
  • Fission spectrum avg. = 1.591 mb
(n,3n) Cross Section
  • Fission spectrum avg. = 0.6692 micro barn
(n,na) Cross Section
  • at 14 MeV = 146.9 micro barn
  • Fission spectrum avg. = 0.04449 micro barn
(n,np) Cross Section
  • at 14 MeV = 2.434 mb
  • Fission spectrum avg. = 0.5616 micro barn
(n,nd) Cross Section
  • Fission spectrum avg. = 5.184580e-10 b
(n,nt) Cross Section
  • Fission spectrum avg. = 3.012000e-11 b
Radiative Capture Cross Section
  • at 0.0253 eV = 8.930 b
  • Maxwell avg. at 0.0253 eV = 7.916 b
  • Resonance integral = 11.74 b
  • at 14 MeV = 1.002 mb
  • Fission spectrum avg. = 7.007 mb
  • g-factor = 1.0002
(n,p) Cross Section
  • at 14 MeV = 4.196 mb
  • Fission spectrum avg. = 1.381 micro barn
(n,d) Cross Section
  • at 14 MeV = 632.8 micro barn
  • Fission spectrum avg. = 0.1685 micro barn
(n,t) Cross Section
  • at 14 MeV = 12.58 micro barn
  • Fission spectrum avg. = 0.01798 micro barn
(n,He3) Cross Section
  • at 14 MeV = 7.524420e-15 b
  • Fission spectrum avg. = 3.631040e-12 b
(n,alpha) Cross Section
  • at 14 MeV = 2.116 mb
  • Fission spectrum avg. = 1.653 micro barn
XS averaged from JENDL3.2 ,Courtesy of T.Nakagawa at JAERI