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|Title:||Comparison of Three Theoretical Approaches to Quantitative Analyzer-Based Imaging||Contributor(s):||Nesterets, Yakov (author); Gureyev, Timur (author) ; Pavlov, Konstantin M (author) ; Paganin, D M (author); Lewis, R A (author); Wilkins, S W (author)||Publication Date:||2005||Handle Link:||https://hdl.handle.net/1959.11/5555||Abstract:||We present a comprehensive analysis, comparison and refinement of three new methods for quantitative X-ray phase-contrast imaging using analyzer crystals. The first method is a new version of the geometric optics approximation for dynamical diffraction, which takes into account the variation of the incident intensity as well as the phase. The second method is based on the linearization of the Takagi transfer function, while the third represents a special variant of the Born approximation with relaxed validity conditions. We compare the methods theoretically as well as using numerically simulated images.||Publication Type:||Journal Article||Source of Publication:||Rossiiskaya Akademiya Nauk: Izvestiya Seriya Fizicheskaya [Bulletin of the Russian Academy of Sciences: Physics], 69(2), p. 246-252||Publisher:||Izdatel'stvo Nauka||Place of Publication:||Russian Federation||ISSN:||1934-9432
|Field of Research (FOR):||020599 Optical Physics not elsewhere classified||Peer Reviewed:||Yes||HERDC Category Description:||C1 Refereed Article in a Scholarly Journal||Other Links:||http://direct.bl.uk/bld/PlaceOrder.do?UIN=186048324&ETOC=RN&from=searchengine||Statistics to Oct 2018:||Visitors: 220
|Appears in Collections:||Journal Article|
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