The binary dissector: Phase contrast tomography of two- and three-material objects from few projections

G. R. Myers; T. E. Gureyev; D. M. Paganin; S. C. Mayo

doi:10.1364/OE.16.010736

The binary dissector: Phase contrast tomography of two- and three-material objects from few projections

G. R. Myers, T. E. Gureyev, D. M. Paganin, S. C. Mayo

Research output: Contribution to journal › Article › peer-review

14 Citations (Scopus)

Abstract

In X-ray computed tomography (CT) increased information requirements (e.g. increased resolution) typically lead to a concurrent increase in the required number of viewing angles, scanning time and delivered dose. We demonstrate that using phase-contrast imaging it is possible to "dissect" two- and three-material objects into their component materials, which in combination with binary tomographic techniques allows us to satisfy increased information requirements without taking the usual images at additional viewing angles. This imaging scheme reduces the scanning time and dose delivered to samples by at least an order of magnitude when compared to conventional X-ray CT. The effects of noise on our reconstruction scheme are investigated for simulated data. Finally, a slice through a glass tube filled with silica and water is reconstructed from 18 projection images taken on an X-ray ultra Microscope (XuM).

Original language	English
Pages (from-to)	10736-10749
Number of pages	14
Journal	Optics Express
Volume	16
Issue number	14
DOIs	https://doi.org/10.1364/OE.16.010736
Publication status	Published - 7 Jul 2008
Externally published	Yes

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The binary dissector: Phase contrast tomography of two- and three-material objects from few projections

Abstract

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