info:eu-repo/semantics/article
Rejection-based sampling of inelastic neutron scattering
Fecha
2019-03-01Registro en:
Cai, Xiao Xiao; Kittelmann, Thomas H.; Klinkby, Esben B.; Marquez Damian, Jose Ignacio; Rejection-based sampling of inelastic neutron scattering; Academic Press Inc Elsevier Science; Journal of Computational Physics; 380; 1-3-2019; 400-407
0021-9991
CONICET Digital
CONICET
Autor
Cai, Xiao Xiao
Kittelmann, Thomas H.
Klinkby, Esben B.
Marquez Damian, Jose Ignacio
Resumen
Distributions of inelastically scattered neutrons can be quantum dynamically described by a scattering kernel. We present an accurate and computationally efficient rejection method for sampling a given scattering kernel of any isotropic material. The proposed method produces continuous neutron energy and angular distributions, typically using just a single interpolation per sampling. We benchmark the results of this method against those from accurate analytical models and one of the major neutron transport codes. We also show the results of applying this method to the conventional discrete double differential cross sections.