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arXiv · 2002.04417

Material decomposition from a single x-ray projection via single-grid phase contrast imaging

Celebrity F. Groenendijk·Florian Schaff·Linda C. P. Croton·Marcus J. Kitchen·Kaye S. Morgan
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Abstract

This study describes a new approach for material decomposition in x-ray imaging, utilising phase contrast to both increase sensitivity to weakly-attenuating samples and to act as a complementary measurement to attenuation, therefore allowing two overlaid materials to be separated. The measurements are captured using the single-exposure, single-grid x-ray phase contrast imaging technique, with a novel correction that aims to remove propagation-based phase effects seen at sharp edges in the attenuation image. The use of a single-exposure technique means that images could be collected in a high-speed sequence. Results are shown for both a known two-material sample and for a biological specimen.

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Celebrity F. Groenendijk, Florian Schaff, Linda C. P. Croton, Marcus J. Kitchen, Kaye S. Morgan. 2020-02-09. Material decomposition from a single x-ray projection via single-grid phase contrast imaging. https://doi.org/10.1364/ol.389770

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