Kallon, GK;
Wesolowski, M;
Vittoria, FA;
Endrizzi, M;
Basta, D;
Millard, TP;
Diemoz, PC;
(2015)
A laboratory based edge-Illumination x-ray phase-contrast imaging setup with two-directional sensitivity.
Applied Physics Letters
, 107
(20)
, Article 204105.
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Abstract
We report on a preliminary laboratory based x-ray phase-contrast imaging system capable of achieving two directional phase sensitivity thanks to the use of L-shaped apertures. We show that in addition to apparent absorption, two-directional differential phase images of an object can be quantitatively retrieved by using only three input images. We also verify that knowledge of the phase derivatives along both directions allows for straightforward phase integration with no streak artefacts, a known problem common to all differential phase techniques. In addition, an analytical method for 2-directional dark field retrieval is proposed and experimentally demonstrated.
| Type: | Article |
|---|---|
| Title: | A laboratory based edge-Illumination x-ray phase-contrast imaging setup with two-directional sensitivity |
| Location: | USA |
| Open access status: | An open access version is available from UCL Discovery |
| Publisher version: | http://dx.doi.org/10.1063/1.4935983 |
| Language: | English |
| Additional information: | © 2015 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution 3.0 Unported License. |
| UCL classification: | UCL 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/1472253 |
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