Analytically solvable model of scattering of relativistic charged particles in solids

0531912 - FZÚ 2021 RIV GB eng J - Článek v odborném periodiku
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
Grant CEP: GA MŠMT EF16_027/0008215
Grant ostatní: MOBILITY FZU(XE) CZ.02.2.69/0.0/0.0/16_027/0008215
Institucionální podpora: RVO:68378271
Klíčová slova: inelastic scattering * cross sections * closed solution for scattering * analytical cross sections * complex dielectric function * linear response
Obor OECD: Optics (including laser optics and quantum optics)
Impakt faktor: 3.207, rok: 2020
Způsob publikování: Omezený přístup
http://doi.org/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.
Trvalý link: http://hdl.handle.net/11104/0310542