Advanced simulations of x-ray beam propagation through CRL transfocators using ray-tracing and wavefront propagation methods

Jana Baltser, Erik Bergbäck Knudsen, Anette Vickery, Oleg Chubar, Anatoly Snigirev, Gavin Vaughan, Robert Feidenhans'l, Kim Lefmann

    Research output: Contribution to journalConference articleResearchpeer-review

    Abstract

    Compound refractive lenses (CRL) are widely used to manipulate synchrotron radiation beams. Accurate modelling of X-ray beam propagation through individual lenses and through "transfocators" composed of a large number of CRLs is of high importance, since it allows for comprehensive optimization of X-ray beamline designs for particular user experiments. In this work we used the newly developed McXtrace ray-tracing package and the SRW wave-optics code to simulate the beam propagation of X-ray undulator radiation through such a "transfocator" as implemented at ID- 11 at ESRF. By applying two complementary simulation methods, we were able to obtain comparable results (e.g. the beam's focused properties) and also to provide a complete description of X-ray beam propagation through the CRLs and other optical components. However, some discrepancies between the results acquired by both methods (e.g. broader monochromatization degree obtained with the McXtrace code) brought a meaningful insight into further development strategies for the McXtrace package.
    Original languageEnglish
    JournalProceedings of SPIE--the international society for optical engineering
    Volume8141
    Issue number1
    Pages (from-to)814111-8
    ISSN0277-786X
    DOIs
    Publication statusPublished - 2011
    EventAdvances in Computational Methods for X-Ray Optics II - San Diego, CA, United States
    Duration: 21 Aug 201125 Aug 2011

    Conference

    ConferenceAdvances in Computational Methods for X-Ray Optics II
    CountryUnited States
    CitySan Diego, CA
    Period21/08/201125/08/2011

    Keywords

    • Materials characterization and modelling

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