Analytically solvable model of scattering of relativistic charged particles in solids

We propose an analytically solvable model of the differential and total inelastic cross sections, mean free paths, and energy losses of charged projectiles (electrons, positrons, protons, ions, etc) within a unified framework. It is applicable within a broad range of incident energies (from 30-50 eV...

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Published in:Journal of physics. D, Applied physics Applied physics, 2020-06, Vol.53 (23), p.235302
Main Authors: Medvedev, N, Volkov, A E
Format: Article
Language:English
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analytical cross sections
closed solution for scattering
complex dielectric function
cross sections
inelastic scattering
linear response
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description We propose an analytically solvable model of the differential and total inelastic cross sections, mean free paths, and energy losses of charged projectiles (electrons, positrons, protons, ions, etc) within a unified framework. It is applicable within a broad range of incident energies (from 30-50 eV up to GeV in a case of an electron). Only the optical data are used as an input, without any ad-hoc correction terms, splitting into close and distant collisions, or fitting and adjustable parameters. We demonstrate that the derived expressions are in a very good agreement with other more complex numerical models and experimental data. Application of the derived formulae greatly saves computational time of evaluation of cross sections with respect to the numerical integration required by other models.
doi_str_mv 10.1088/1361-6463/ab7c09
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source Institute of Physics:Jisc Collections:IOP Publishing Read and Publish 2024-2025 (Reading List)
subjects analytical cross sections
closed solution for scattering
complex dielectric function
cross sections
inelastic scattering
linear response
title Analytically solvable model of scattering of relativistic charged particles in solids
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