40
19
K


Basic Info

n-XS summary

element 		Information about Potassium-40:

WikipediaNeutron Cross SectionsX-Ray TransitionsX-Ray Attenuation
Total Cross Section
  • at 0.0253 eV = 37.54 b
  • Maxwell avg. at 0.0253 eV = 33.76 b
  • at 14 MeV = 2.046 b
  • Fission spectrum avg. = 2.862 b
  • g-factor = 1.0147
Elastic Scattering Cross Section
  • at 0.0253 eV = 2.751 b
  • Maxwell avg. at 0.0253 eV = 2.751 b
  • at 14 MeV = 977.4 mb
  • Fission spectrum avg. = 2.311 b
  • g-factor = 1.1284
Total Inelastic Cross Section
  • at 14 MeV = 289.9 mb
  • Fission spectrum avg. = 411.7 mb
(n, 2n) Cross Section
  • at 14 MeV = 225.5 mb
  • Fission spectrum avg. = 537.6 micro barn
(n, na) Cross Section
  • at 14 MeV = 112.8 mb
  • Fission spectrum avg. = 34.59 micro barn
(n, np) Cross Section
  • at 14 MeV = 190.0 mb
  • Fission spectrum avg. = 232.1 micro barn
Radiative Capture Cross Section
  • at 0.0253 eV = 30.00 b
  • Maxwell avg. at 0.0253 eV = 26.59 b
  • Resonance integral = 13.45 b
  • at 14 MeV = 4.123 micro barn
  • Fission spectrum avg. = 1.546 mb
  • g-factor = 1.0000
(n, p) Cross Section
  • at 0.0253 eV = 4.400 b
  • Maxwell avg. at 0.0253 eV = 3.853 b
  • Resonance integral = 1.481 b
  • at 14 MeV = 108.5 mb
  • Fission spectrum avg. = 27.41 mb
  • g-factor = 0.9882
(n, alpha) Cross Section
  • at 0.0253 eV = 390.0 mb
  • Maxwell avg. at 0.0253 eV = 359.5 mb
  • Resonance integral = 1.307 b
  • at 14 MeV = 142.4 mb
  • Fission spectrum avg. = 109.9 mb
  • g-factor = 1.0400
XS averaged from JENDL3.2 , Courtesy of T.Nakagawa at JAERI