抄録
Effects of inelastic scattering on the diffraction of fast electrons by a crystal are studied. The Bragg reflections of both elastically and inelastically scattered electrons are considered. The absorption coefficients of wave fields and their dependence on the diffraction condition are derived. The results of the theory are applied to the intensity distributions of “equal thickness fringes” in electron microscopic images formed by elastically and inelastically scattered electrons. The effects of the interband and the intraband transitions on the images formed by inelastically scattered electrons are studied. The applications of this theory to the thick-crystal and the multiple scattering are discussed.
