All-atom relativistic molecular dynamics simulations of channeling and radiation processes in oriented crystals

We review achievements made in recent years the field of numerical modeling ultra-relativistic projectiles propagation oriented crystals, radiation emission and related phenomena. This topic is highly relevant to problem designing novel gamma-ray light sources based on exposure crystals beams charged particles .The paper focuses approaches that allow for advanced computation exploration beyond continuous potential binary collision frameworks. A comprehensive description multiscale all-atom relativistic molecular dynamics approach implemented MBN Explorer package given. Several case studies (electrons, positron pions) channeling photon straight, bent periodically are presented. In most cases, input data used simulations, such as crystal orientation thickness, bending radii, periods amplitudes, well energies projectiles, have been chosen match parameters accomplished ongoing experiments. Wherever available results calculations compared with experimental and/or obtained by other means.