EPJ Web of Conferences (May 2012)

Covariance Matrix of a Double-Differential Doppler-Broadened Elastic Scattering Cross Section

  • Leal L.C.,
  • Larson N.M.,
  • Dunn M.E.,
  • Dagan R.,
  • Becker B.,
  • Arbanas G.,
  • Williams M.L.

DOI
https://doi.org/10.1051/epjconf/20122700006
Journal volume & issue
Vol. 27
p. 00006

Abstract

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Legendre moments of a double-differential Doppler-broadened elastic neutron scattering cross section on 238U are computed near the 6.67 eV resonance at temperature T = 103 K up to angular order 14. A covariance matrix of these Legendre moments is computed as a functional of the covariance matrix of the elastic scattering cross section. A variance of double-differential Doppler-broadened elastic scattering cross section is computed from the covariance of Legendre moments.