Zamir, A;
Hagen, CK;
Diemoz, PC;
Endrizzi, M;
Vittoria, FA;
Urbani, L;
De Coppi, P;
(2016)
Increased robustness and speed in low-dose phase-contrast tomography with laboratory sources.
In: Stock, SR and Muller, B and Wang, G, (eds.)
(Proceedings) SPIE 9967, Developments in X-Ray Tomography X.
(pp. p. 996716).
International Society for Optical Engineering
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Abstract
In this article we discuss three different developments in Edge Illumination (EI) X-ray phase contrast imaging (XPCi), all ultimately aimed at optimising EI computed tomography (CT) for use in different environments, and for different applications. For the purpose of reducing scan times, two approaches are presented; the reverse projection" acquisition scheme which allows a continuous rotation of the sample, and the single image" retrieval algorithm, which requires only one frame for retrieval of the projected phase map. These are expected to lead to a substantial reduction of EI CT scan times, a prospect which is likely to promote the translation of EI into several applications, including clinical. The last development presented is the "modified local" phase retrieval. This retrieval algorithm is specifically designed to accurately retrieve sample properties (absorption, refraction, scattering) in cases where high-resolution scans are required in non-ideal environments. Experimental results, using both synchrotron radiation and laboratory sources, are shown for the various approaches.
| Type: | Proceedings paper |
|---|---|
| Title: | Increased robustness and speed in low-dose phase-contrast tomography with laboratory sources |
| Event: | SPIE 9967, Developments in X-Ray Tomography X |
| Location: | San Diego, California, USA |
| Dates: | 28 August 2016 - 01 September 2016 |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1117/12.2236626 |
| Publisher version: | http://dx.doi.org/10.1117/12.2236626 |
| Language: | English |
| Additional information: | Anna Zamir ; Charlotte K. Hagen ; Paul C. Diemoz ; Marco Endrizzi ; Fabio A. Vittoria ; Luca Urbani ; Paolo De Coppi and Alessandro Olivo " Increased robustness and speed in low-dose phase-contrast tomography with laboratory sources ", Proc. SPIE 9967, Developments in X-Ray Tomography X, 996716 (October 4, 2016); doi:10.1117/12.2236626; Copyright 2016 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited. |
| Keywords: | Phase-contrast imaging, edge illumination, computed tomography, fast imaging, phase retrieval, X-ray imaging |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Population Health Sciences > UCL GOS Institute of Child Health UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Population Health Sciences > UCL GOS Institute of Child Health > Developmental Biology and Cancer Dept UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Med Phys and Biomedical Eng |
| URI: | https://discovery.ucl.ac.uk/id/eprint/1520843 |
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