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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.
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It is part of: Journal of Applied Physics, 1998, num. 83, núm. 11, p. 6038-6049
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ISSN: 0021-8979
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)

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