Abstract

Kinetics of the channeling of accelerated particles in single-wall carbon nanotubes (CNTs) of the armchair and zigzag configurations has been theoretically studied, with special attention devoted to the oriented motion of positive ions. Based on first principles, the Fokker-Planck equation for the function of particle distribution with respect to transverse variables is constructed using the stochastic equations of particle motion inside nanotubes. Simple analytical formulas are obtained for the radial and axial distribution of moving particles, their distribution with respect to the transverse energy, and the length of particle dechanneling from armchair and zigzag CNTs.

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