About Bragg electron diffraction when inelastic large-angle scattering

Peculiarities of Bragg electron diffraction followed by their inelastic scattering at large angles observed in electron channeling of crystals are considered. It is stated that the angular location of the diffraction maxima of the large-angle electron scattering cross section does not depend on the fact whether electrons are elastic or inelastic scattered. It is shown that the ''modulation'' depth of the angular structure is a non-monotonous function of the energy lost by the electron during its irradiation of the plasmon. Single electron collision with plasmon is the most probable inelastic process essentially affecting the formation of the coherent field region