Coherent methods in the X-ray sciences - Physics > OpticsReport as inadecuate

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Abstract: X-ray sources are developing rapidly and their coherent output is growingextremely rapidly. The increased coherent flux from modern X-ray sources isbeing matched with an associated rapid development in experimental methods.This article reviews the literature describing the ideas that utilise theincreased brilliance from modern X-ray sources. It explores how ideas incoherent X-ray science are leading to developments in other areas, and viceversa. The article describes measurements of coherence properties and uses thisdiscussion as a base from which to describe partially-coherent diffraction andX-ray phase contrast imaging, with its applications in materials science,engineering and medicine. Coherent diffraction imaging methods are reviewedalong with associated experiments in materials science. Proposals forexperiments to be performed with the new X-ray free-electron-lasers are brieflydiscussed. The literature on X-ray photon correlation spectroscopy is describedand the features it has in common with other coherent X-ray methods areidentified. Many of the ideas used in the coherent X-ray literature have theirorigins in the optical and electron communities and these connections areexplored. A review of the areas in which ideas from coherent X-ray methods arecontributing to methods for the neutron, electron and optical communities ispresented.

Author: Keith A Nugent


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