Based on this idea, in this report we are discussing the features of 20-800 MeV e-/e+ channeling in various crystals. Namely, paying attention to the complex character of radiation origin, the new peculiarities of channeling radiation from relativistic particles have been described in details; the processes of multiple scattering have been studied using a modified binary collision model; the possibility of the particle spin manifestation in radiation parameters has been analyzed; various solutions for coherent production of e-/e+ pairs in crystals have been presented. The results of both computer simulations and estimations are given in many figures and tables.
A. et al. (Thu,) studied this question.