Anomalies in multiple scattering of charged particles in a thick crystal

Abstract

The dynamics of charged particle channeling in a crystal consisting of atomic chains is considered. The multiple scattering of charged particles, introduced by the trajectory integral method, leads to transitions between dynamical modes of the axial channeling, whereby double channeling is a sink for the normal channeling. Volume rechanneling takes place under the conditions of random motion. In this case, up to ∼20% of incident charged particles move in the channeling regime over a depth equal to the normal range, and a considerable fraction of these particles are involved in the double channeling regime.