Analytically solvable model of scattering of relativistic charged particles in solids

0541079 - ÚFP 2021 RIV GB eng J - Journal Article
Medvedev, Nikita - Volkov, A.E.
Analytically solvable model of scattering of relativistic charged particles in solids.
Journal of Physics D-Applied Physics. Roč. 53, č. 23 (2020), s. 1-11, č. článku 235302. ISSN 0022-3727. E-ISSN 1361-6463
R&D Projects: GA MŠMT LTT17015; GA MŠMT(CZ) LM2015083
Institutional support: RVO:61389021
Keywords : analytical cross sections * closed solution for scattering * complex dielectric function * cross sections * inelastic scattering * linear response
OECD category: Optics (including laser optics and quantum optics)
Impact factor: 3.207, year: 2020
Method of publishing: Limited access
https://iopscience.iop.org/article/10.1088/1361-6463/ab7c09

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.
Permanent Link: http://hdl.handle.net/11104/0318659