Disorder Scattering of X-Rays by Local Distortions

Abstract

The disorder scattering (background) owing to local distortions is caused mainly by the elastic strain field surrounding the distorted zone rather than by the misfit atoms in the zone of distortion. As an example, the scattering caused by a distortion of spherical symmetry is calculated. The result is extended for more general types of distortions. The background intensity increases strongly in the neighborhood of a line, and it tends toward a constant value for small scattering angles. This explains previous observations on rolled copper.