2 September 2010 Imaging fossilised spiders in amber using lab-based phase contrast x-ray tomography
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Abstract
Propagation-based phase contrast imaging allows low absorbing materials to be studied non-destructively using hard xrays, generating additional edge contrast through interference effects. Here we will present recent work undertaken at Manchester University's "Henry Moseley X-ray Imaging Facility" studying the applicability of lab-based phase contrast tomography to the imaging of spider specimens preserved in a range of amber types. New spider species are identified using distinctive anatomical features, including the modified structures of the anterior leg-like appendages (pedipalps) of mature males. We will describe three different strategies adopted in dealing with the phase artefacts inherent to the technique, giving a clean segmentation of important features and resulting in the classification of new species.
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Andrew McNeil, Andrew McNeil, Robert S. Bradley, Robert S. Bradley, Philip J. Withers, Philip J. Withers, David Penney, David Penney, "Imaging fossilised spiders in amber using lab-based phase contrast x-ray tomography", Proc. SPIE 7804, Developments in X-Ray Tomography VII, 78041Q (2 September 2010); doi: 10.1117/12.873024; https://doi.org/10.1117/12.873024
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