Title Assessing scattering effects in annular radioisotope excited $XRF^{+}$ Author Alvarez, Roman Padilla van Espen, Pierre Quintana, Arian Abrahantes Faculty/Department Faculty of Sciences. Chemistry Publication type article Publication 2004 London , 2004 Subject Chemistry Source (journal) X-ray spectrometry. - London Source (book) Biennial EDXRS Conference, JUN 16-21, 2002, BERLIN, GERMANY Volume/pages 33(2004) :1 , p. 74-82 ISSN 0049-8246 ISI 000188743100014 Carrier E Target language English (eng) Full text (Publishers DOI) Affiliation University of Antwerp Abstract Rayleigh and Compton scattered radiation is used in various correction procedures for quantitative x-ray fluorescence analysis. However, the information derived from the measured scatter peaks is altered by several phenomena in the case of annular radioisotope excitation, causing the calculated results to deviate, often significantly, from the expected values. In this work, we assessed the main sources of inaccuracy when using measured scatter intensities. Monte Carlo simulation was used to trace the radiation transport in the geometric arrangement source-sample-collimator-detector and to estimate the contribution of different effects to the measured Rayleigh and Compton scatter peaks. The information obtained in this way was used to extend the IAEA-QXAS standardless fundamental parameter approach to the case of annular radioisotope excitation and to formulate a method to correct for spurious fluorescent peaks appearing in blank measurements. Copyright (C) 2004 John Wiley Sons, Ltd. E-info http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000188743100014&DestLinkType=RelatedRecords&DestApp=ALL_WOS&UsrCustomerID=ef845e08c439e550330acc77c7d2d848 http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000188743100014&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=ef845e08c439e550330acc77c7d2d848 http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000188743100014&DestLinkType=CitingArticles&DestApp=ALL_WOS&UsrCustomerID=ef845e08c439e550330acc77c7d2d848 https://repository.uantwerpen.be/docman/iruaauth/999c50/21510357.pdf Handle