Confocal energy-dispersive X-ray diffraction tomography employing a conical shell beam

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dc.contributor.authorDicken, Anthony
dc.contributor.authorEvans, J. Paul O.
dc.contributor.authorRogers, Keith
dc.contributor.authorProkopiou, Danae
dc.contributor.authorGodber, Simon
dc.contributor.authorElarnaut, F.
dc.contributor.authorShevchuk, Alex
dc.contributor.authorDownes, D.
dc.contributor.authorWilson, M.
dc.date.accessioned2019-07-19T15:41:34Z
dc.date.available2019-07-19T15:41:34Z
dc.date.issued2019-07-01
dc.description.abstractWe introduce a new high-energy X-ray diffraction tomography technique for volumetric materials characterization. In this method, a conical shell beam is raster scanned through the samples. A central aperture optically couples the diffracted flux from the samples onto a pixelated energy-resolving detector. Snapshot measurements taken during the scan enable the construction of depth-resolved dark-field section images. The calculation of dspacing values enables the mapping of material phase in a volumetric image. We demonstrate our technique using five ~15 mm thick, axially separated samples placed within a polymer tray of the type used routinely in airport security stations. Our method has broad analytical utility due to scalability in both scan size and X-ray energy. Additional application areas include medical diagnostics, materials science, and process controlen_UK
dc.identifier.citationDicken AJ, Evans JP, Rogers KD, et al., Confocal energy-dispersive X-ray diffraction tomography employing a conical shell beam. Optics Express, Volume 27, Issue 14, 2019, pp. 19834-19841en_UK
dc.identifier.issn1094-4087
dc.identifier.urihttps://doi.org/10.1364/OE.27.019834
dc.identifier.urihttp://dspace.lib.cranfield.ac.uk/handle/1826/14367
dc.language.isoenen_UK
dc.publisherOptical Society of Americaen_UK
dc.rightsAttribution 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.titleConfocal energy-dispersive X-ray diffraction tomography employing a conical shell beamen_UK
dc.typeArticleen_UK

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