Roche i Morgo, Oriol;
Jia, Yunpeng;
Allan, Harry;
Doherty, Adam;
Navarrete-León, Carlos;
Astolfo, Alberto;
Jiang, Licai;
... Endrizzi, Marco; + view all
(2024)
A new user facility with flexible multi-scale, multi-contrast micro-CT capabilities.
In: Müller, Bert and Wang, Ge, (eds.)
Proceedings SPIE 13152, Developments in X-Ray Tomography XV.
(pp. p. 1315209).
SPIE: San Diego, California, USA.
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Abstract
Many fields, from aerospace engineering to cultural heritage, can benefit from x-ray micro computed tomography (micro-CT). However, access to x-ray imaging tools remains limited for non-expert users. The UK’s National X-Ray Computed Tomography facility (NXCT) therefore aims to provide access and expert support to academia and industry. As part of the NXCT, at UCL we have developed a unique user facility with multi-scale and multi-contrast x-ray micro-CT capabilities. Our custom system has an x-ray generator with Molybdenum and Copper targets, which can be changed to adapt the energy to the needs of an imaging experiment. The x-rays are emitted on both sides of the source allowing for two imaging stations: one at mm-sized field-of-view (FOV) with resolutions of around 1μm, the “high-resolution station”; and one at cm-sized FOV with resolutions of around 10μm, the “large FOV station”. The high-resolution station is fitted with a custom mirror which gives a monochromatic beam at 17.5keV (for Mo) and 8keV (for Cu). Both stations can be operated with phase-contrast methods such as free-space propagation or beam tracking. Access to this new imaging facility, dedicated to academic and industrial users, is supported through free-at-the-point-of-access and paid schemes.
| Type: | Proceedings paper |
|---|---|
| Title: | A new user facility with flexible multi-scale, multi-contrast micro-CT capabilities |
| Event: | Optical Engineering + Applications 2024 |
| Dates: | 18 Aug 2024 - 23 Aug 2024 |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1117/12.3028029 |
| Publisher version: | http://dx.doi.org/10.1117/12.3028029 |
| Language: | English |
| Additional information: | This version is the version of record. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | X-rays; Signal attenuation; Spatial resolution; X-ray imaging; Imaging systems; Biological imaging; Modulators; Molybdenum; Phase contrast; X-ray computed tomography |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS 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/10199373 |
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