Please use this identifier to cite or link to this item:
http://doi.org/10.25358/openscience-8344
Authors: | Backe, Hartmut |
Title: | De-channeling in terms of instantaneous transition rates : computer simulations for 855 MeV electrons at (110) planes of diamond |
Online publication date: | 16-Dec-2022 |
Year of first publication: | 2022 |
Language: | english |
Abstract: | Monte-Carlo simulation calculation have been performed for 855 MeV electrons channeling in (110) planes of a diamond single crystal. The continuum potential picture has been utilized. Both, the transverse potential and the angular distributions of the scattered electrons at screened atoms are based on the Doyle–Turner scattering factors which were extrapolated with the functional dependence of the Molière representation to large momentum transfers. Scattering cross-sections at bound electrons have been derived for energies less than 30 keV from the double differential cross-section as function of both, energy and momentum transfer, taking into account also longitudinal and transverse excitations. For energies above 30 keV the Møller cross-section is used. The dynamics of the particle in the continuum transverse potential has been described classically. Results of the channeling process are presented in terms of instantaneous transition rates as function of the penetration depth, indicating that channeling can be described by a single exponential function only after about 15 μm when the equilibration phase has been reached. As a byproduct, improved drift and diffusion coefficients entering the Fokker–Planck equation have been derived with which its predictive power can be improved. |
DDC: | 530 Physik 530 Physics |
Institution: | Johannes Gutenberg-Universität Mainz |
Department: | FB 08 Physik, Mathematik u. Informatik |
Place: | Mainz |
ROR: | https://ror.org/023b0x485 |
DOI: | http://doi.org/10.25358/openscience-8344 |
Version: | Published version |
Publication type: | Zeitschriftenaufsatz |
License: | CC BY |
Information on rights of use: | https://creativecommons.org/licenses/by/4.0/ |
Journal: | The European physical journal : D 76 |
Pages or article number: | 153 |
Publisher: | Springer |
Publisher place: | Berlin u.a. |
Issue date: | 2022 |
ISSN: | 1434-6079 |
Publisher DOI: | 10.1140/epjd/s10053-022-00464-w |
Appears in collections: | DFG-491381577-H |
Files in This Item:
File | Description | Size | Format | ||
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![]() | dechanneling_in_terms_of_inst-20221117165635279.pdf | 1.41 MB | Adobe PDF | View/Open |