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|Title:||Elemental Contrast X-ray Tomography Using Ross Filter Pairs with a Polychromatic Laboratory Source||Contributor(s):||Arhatari, B D (author) ; Gureyev, Timur (author) ; Abbey, B (author)||Publication Date:||2017||Open Access:||Yes||DOI:||10.1038/s41598-017-00304-7||Handle Link:||https://hdl.handle.net/1959.11/23019||Abstract:||The majority of current laboratory based X-ray sources are polychromatic and are not tuneable. This lack of monochromaticity limits the range of applications for these sources and in particular it reduces the elemental specificity of laboratory based X-ray imaging experiments. Here we present a solution to this problem based on the use of Ross filter pairs. Although such Ross filter arrangements have been applied in proof-of-principle spectroscopy experiments, to date there have been no reports of this approach used for full-field X-ray imaging. Here we report on the experimental demonstration of Ross filter pairs being used for quasi-monochromatic, full-field imaging. This arrangement has several important benefits for laboratory based X-ray imaging including, as we demonstrate, elemental contrast enhancement. The method is demonstrated both for two-dimensional radiography and for three-dimensional X-ray tomography.||Publication Type:||Journal Article||Source of Publication:||Scientific Reports, v.7, p. 1-9||Publisher:||Nature Publishing Group||Place of Publication:||United Kingdom||ISSN:||2045-2322||Field of Research (FOR):||020599 Optical Physics not elsewhere classified||Socio-Economic Outcome Codes:||970102 Expanding Knowledge in the Physical Sciences||Peer Reviewed:||Yes||HERDC Category Description:||C1 Refereed Article in a Scholarly Journal||Statistics to Oct 2018:||Visitors: 2
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