Abstract:
Theory describing the channeling of particles is formulated on the basis of the
quantum theory of transport phenomena. The phonon scattering by the channeled
particles is taken into account. Our approach is based on the following points: 1) model
for channeled particle (planar case), 2) definitions of the rate of dechanneling, 3) basic
transport equation which is obtained by means of the Green function method. The
effect of successive collisions of particles with the atoms of channel is considered. The
discrete structure of the lattice is taken into account. The process of population of the
low above-barrier state is considered as a step-by-step excitation through many intermediate
states, many phonons being involved in the whole excitation process.
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