Files
Document type
ArticleVersion
Published versionPublication date
All rights reserved
Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/24105
Monte Carlo simulation of kilovolt electron transport in solids
Journal Title
Director/Tutor
Journal ISSN
Volume Title
Related resource
Abstract
A Monte Carlo procedure to simulate the penetration and energy loss of low¿energy electron beams through solids is presented. Elastic collisions are described by using the method of partial waves for the screened Coulomb field of the nucleus. The atomic charge density is approximated by an analytical expression with parameters determined from the Dirac¿Hartree¿Fock¿Slater self¿consistent density obtained under Wigner¿Seitz boundary conditions in order to account for solid¿state effects; exchange effects are also accounted for by an energy¿dependent local correction. Elastic differential cross sections are then easily computed by combining the WKB and Born approximations to evaluate the phase shifts. Inelastic collisions are treated on the basis of a generalized oscillator strength model which gives inelastic mean free paths and stopping powers in good agreement with experimental data. This scattering model is accurate in the energy range from a few hundred eV up to about 50 keV. The reliability of the simulation method is analyzed by comparing simulation results and experimental data from backscattering and transmission measurements.
Subject (English)
Citation
Citation
MARTÍNEZ, J. D., MAYOL SÁNCHEZ, Ricardo and SALVAT GAVALDÀ, Francesc. Monte Carlo simulation of kilovolt electron transport in solids. Journal of Applied Physics. 1990. Vol. 67, num. 6, pags. 2955-2963. ISSN 0021-8979. [consulted: 14 of June of 2026]. Available at: https://hdl.handle.net/2445/24105