Stolp, W;
Cipiccia, S;
Vanheule, S;
Batey, D;
Van Assche, F;
Boone, MN;
(2021)
Color ptychography with a hyperspectral X-ray camera.
In:
Proceedings of SPIE - X-Ray Nanoimaging: Instruments and Methods V.
The International Society for Optical Engineering (SPIE): San Diego, USA.
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Abstract
A possible improvement on a new method of single acquisition hyperspectral (spectroscopic) ptychographic imaging, making use of a hyperspectral X-ray camera, is presented. Undulator tapering is used at the synchrotron to broaden the energy distribution of the X-ray beam to a suitable level for edge subtraction. The combination of a coherent imaging method such as ptychography with spectroscopy poses difficulties in experimental setup design regarding probe size. The final goal of the experiment, a K-edge subtraction, is not successful, but the technique is nevertheless promising. The capability of resolving the absorption edge applies to a wide range of research areas, such as element specific investigations in biological, materials, and earth sciences. We discuss the problems and their possible solutions.
| Type: | Proceedings paper |
|---|---|
| Title: | Color ptychography with a hyperspectral X-ray camera |
| Event: | SPIE Optical Engineering + Applications, 2021 |
| Dates: | 1 Aug 2021 - 5 Aug 2021 |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1117/12.2594803 |
| Publisher version: | https://doi.org/10.1117/12.2594803 |
| 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: | Spectroscopy, ptychography, coherent diffraction imaging, synchrotron, edge subtraction |
| UCL classification: | 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 UCL > Provost and Vice Provost Offices > UCL BEAMS UCL |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10146415 |
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