Application de la théorie dynamique de S. Takagi au contraste d'un défaut plan en topographie par rayons X. II. Franges de moiré

Abstract

A particular moiré fringe pattern is observed on X-ray topographs in silicon crystals irradiated by protons. The kinematical theory of X-ray diffraction explains very well the geometry of these fringes on traverse topographs. Takagi's dynamical theory of X-ray diffraction is used to calculate the fringe contrast on section topographs. There is a good agreement between theory and experiment.