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http://hdl.handle.net/2445/24113
Title: | Monte Carlo simulation of x-ray emission by kilovolt electron bombardment |
Author: | Acosta, Eva Llovet Ximenes, Xavier Coleoni, Enrique Andrés Riveros, J. A. Salvat Gavaldà, Francesc |
Keywords: | Mètode de Montecarlo Mètodes de simulació Monte Carlo method Simulation methods |
Issue Date: | 1-Jun-1998 |
Publisher: | American Institute of Physics |
Abstract: | A physical model for the simulation of x-ray emission spectra from samples irradiated with kilovolt electron beams is proposed. Inner shell ionization by electron impact is described by means of total cross sections evaluated from an optical-data model. A double differential cross section is proposed for bremsstrahlung emission, which reproduces the radiative stopping powers derived from the partial wave calculations of Kissel, Quarles and Pratt [At. Data Nucl. Data Tables 28, 381 (1983)]. These ionization and radiative cross sections have been introduced into a general-purpose Monte Carlo code, which performs simulation of coupled electron and photon transport for arbitrary materials. To improve the efficiency of the simulation, interaction forcing, a variance reduction technique, has been applied for both ionizing collisions and radiative events. The reliability of simulated x-ray spectra is analyzed by comparing simulation results with electron probe measurements. |
Note: | Reproducció del document publicat a: http://dx.doi.org/10.1063/1.367473 |
It is part of: | Journal of Applied Physics, 1998, num. 83, núm. 11, p. 6038-6049 |
URI: | http://hdl.handle.net/2445/24113 |
Related resource: | http://dx.doi.org/10.1063/1.367473 |
ISSN: | 0021-8979 |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
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