Imaging fossilised spiders in amber using lab-based phase contrast x-ray tomography

Andrew McNeil; Robert S. Bradley; Philip J. Withers; David Penney

doi:10.1117/12.873024

2 September 2010 Imaging fossilised spiders in amber using lab-based phase contrast x-ray tomography

Andrew McNeil, Robert S. Bradley, Philip J. Withers, David Penney

Proceedings Volume 7804, Developments in X-Ray Tomography VII; 78041Q (2010) https://doi.org/10.1117/12.873024
Event: SPIE Optical Engineering + Applications, 2010, San Diego, California, United States

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.

Citation Download Citation

Andrew McNeil, Robert S. Bradley, Philip J. Withers, and 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); https://doi.org/10.1117/12.873024

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