The interpretation of polycrystalline coherent inelastic neutron scattering from aluminium.

ABSTRACT: A new approach to the interpretation and analysis of coherent inelastic neutron scattering from polycrystals (poly-CINS) is presented. This article describes a simulation of the one-phonon coherent inelastic scattering from a lattice model of an arbitrary crystal system. The one-phonon component is characterized by sharp features, determined, for example, by boundaries of the (Q, ω) regions where one-phonon scattering is allowed. These features may be identified with the same features apparent in the measured total coherent inelastic cross section, the other components of which (multiphonon or multiple scattering) show no sharp features. The parameters of the model can then be relaxed to improve the fit between model and experiment. This method is of particular interest where no sin

SUBMITTER: Roach DL 

PROVIDER: S-EPMC3831299 | biostudies-literature | 2013 Dec

REPOSITORIES: biostudies-literature