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Utility of knife-edge position tracking in cycloidal computed tomography

Roche i Morgó, Oriol; Aleksejev, Jure; Astolfo, Alberto; Savvidis, Savvas; Gerli, Mattia FM; Cipiccia, Silvia; Olivo, Alessandro; (2022) Utility of knife-edge position tracking in cycloidal computed tomography. Optics Express , 30 (24) , Article 43209. 10.1364/oe.470798. Green open access

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Abstract

Cycloidal computed tomography provides high-resolution images within relatively short scan times by combining beam modulation with dedicated under-sampling. However, implementing the technique relies on accurate knowledge of the sample’s motion, particularly in the case of continuous scans, which is often unavailable due to hardware or software limitations. We have developed an easy-to-implement position tracking technique using a sharp edge, which can provide reliable information about the trajectory of the sample and thus improve the reconstruction process. Furthermore, this approach also enables the development of other innovative sampling schemes, which may otherwise be difficult to implement.

Type: Article
Title: Utility of knife-edge position tracking in cycloidal computed tomography
Open access status: An open access version is available from UCL Discovery
DOI: 10.1364/oe.470798
Publisher version: https://doi.org/10.1364/OE.470798
Language: English
Additional information: This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third-party material in this article are included in the Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
UCL classification: UCL
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Medical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Medical Sciences > Div of Surgery and Interventional Sci
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/10159640
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