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1998-06-01

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Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/24113

Monte Carlo simulation of x-ray emission by kilovolt electron bombardment

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http://dx.doi.org/10.1063/1.367473

Resum

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.

Matèries

Mètode de Montecarlo, Mètodes de simulació

Matèries (anglès)

Monte Carlo method, Simulation methods

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Articles publicats en revistes (Física Quàntica i Astrofísica)

Citació

ACOSTA, Eva, et al. Monte Carlo simulation of x-ray emission by kilovolt electron bombardment. Journal of Applied Physics. 1998. Vol. 83, num. 11, pags. 6038-6049. ISSN 0021-8979. [consulted: 28 of May of 2026]. Available at: https://hdl.handle.net/2445/24113

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