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Title: Multiple-electron excitation in X-ray absorption: a screened model of the core-hole-photoelectron potential
Authors: Roy, Mervyn
Gurman, Steve J.
First Published: Mar-2003
Publisher: International Union of Crystallography
Citation: Journal of Synchrotron Radiation, 2003, 10 (2), pp. 120-124.
Abstract: The probability of secondary electron shake-off in X-ray absorption is calculated using a model form for the time- and energy-dependent core-hole-photoelectron potential, screened by the single plasmon pole dielectric function of the surrounding material. The resultant excitation probabilities are related to the energy-dependent intrinsic loss function in EXAFS data analysis and compared with experiment. Reasonable agreement is obtained close to the absorption edge although the calculation is less accurate at higher photon energies. The theory described allows the losses to be calculated with little computational effort, making the method suitable for routine EXAFS data analysis.
DOI Link: 10.1107/S0909049502021155
ISSN: 0909-0495
Type: Article
Rights: This is an authorised electronic reprint of the paper published as Journal of Synchrotron Radiation, 2003, 10 (2), pp. 120-124. This paper is available from Doi: 10.1107/S0909049502021155
Appears in Collections:Published Articles, Dept. of Physics and Astronomy

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