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Energy Loss Distributions of Relativistic Charged Particles in Crystals
Author(s) -
Kudryashov N. A.,
Petrovskii S. V.,
Samsonov V. M.,
Strikhanov M. N.
Publication year - 1990
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2221570205
Subject(s) - physics , kinetic energy , charged particle , atomic physics , beam (structure) , scattering , energy (signal processing) , charged particle beam , particle (ecology) , beam energy , relativistic particle , distribution (mathematics) , computational physics , classical mechanics , nuclear physics , optics , ion , quantum mechanics , electron , mathematical analysis , oceanography , mathematics , geology
The kinetic equations are derived which describe the energy loss for fast charged particles with account for their correlated motion in the field of atomic planes and multiple scattering. The numerical calculations for relativistic proton beams demonstrate that for large beam incident angles θ 0 > θ L (where θ L is the Lindhard angle) the energy loss distributions coincide with the Landau theory with good accuracy. At small incidence angles θ 0 < θ L of a narrow positively charged particle beam the distribution maximum is shifted to anomalously small energy losses. The problem of particle selection according to the small energy loss criterion is considered. A comparison between the theory and experiment is made.