Bronnikov-aided correction for x-ray computed tomography

• DOI: 10.1364/josaa.26.000890
• Publication Date: 2009-03-19T21:32:52Z
• Authors: Yoni De Witte; Matthieu Boone; Jelle Vlassenbroeck; Manuel Dierick; Luc Van Hoorebeke
• Keywords: Sample (material); SIGNAL (programming language)

When a very-low-absorbing sample is scanned at an x-ray computed tomography setup with microfocus tube and high-resolution detector, the obtained projection images contain not only absorption contrast but also phase contrast. While without signal can be reconstructed very well, such mixed give rise to severe artifacts in slices. A method described that applies correction these projections remove signal. These corrected then processed using standard filtered backprojection algorithm obtain reconstructions few or no artifacts. This new method, which we call Bronnikov-aided (BAC), used broad variety of applications much additional effort. It tested on biological pharmaceutical sample, results are evaluated discussed by comparing them those conventional reconstruction methods.