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|Title:||Monte Carlo simulation of x-ray emission by kilovolt electron bombardment|
Llovet Ximenes, Xavier
Coleoni, Enrique Andrés
Riveros, J. A.
Salvat Gavaldà, Francesc
|Keywords:||Mètode de Montecarlo|
Mètodes de simulació
Monte Carlo method
|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|
|Appears in Collections:||Articles publicats en revistes (Física Quàntica i Astrofísica)|
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