Marathe, S;
Zdora, M-C;
Zanette, I;
Cipiccia, S;
Rau, C;
(2017)
Comparison of data processing techniques for single-grating x-ray Talbot interferometer data.
In: Muller, B and Wang, G, (eds.)
Developments in X-Ray Tomography XI.
SPIE: San Diego, CA, USA.
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Abstract
The phase-stepping (PS) mode of X-ray Grating Talbot interferometer (XGTI) data processing technique can yield high-spatial resolution images, albeit with lower throughput since each projection of a tomogram requires at least five phase-stepping images. To overcome this problem, we can use a setup with only a single phase grating in combination with a high-resolution detector system and a Spatial Harmonic Imaging (SHI) technique. The latter technique makes use of the fact that a Talbot interferogram consists of carrier frequency spectrum of the grating overlapping with the sample spectrum and by Fourier transforming the interferogram we can separate the two. The disadvantage of this is that the spatial resolution is inferior. In this manuscript we will compare these two single grating data processing techniques using a single data set measured with mouse embryo heart and discuss advantages and disadvantages of each technique. These two techniques can be used as complementary; one for high resolution, and the other for high-speed imaging.
| Type: | Proceedings paper |
|---|---|
| Title: | Comparison of data processing techniques for single-grating x-ray Talbot interferometer data |
| Event: | SPIE Optical Engineering + Applications, 2017 |
| Location: | San Diego, CA |
| Dates: | 08 August 2017 - 10 August 2017 |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1117/12.2274021 |
| Publisher version: | https://doi.org/10.1117/12.2274021 |
| Language: | English |
| Additional information: | Copyright © The Authors. Published under a Creative Commons Attribution CC-BY 3.0 License. |
| Keywords: | x-ray grating interferometer, phase-contrast imaging, phase-stepping technique, Spatial Harmonic Imaging |
| 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 UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10118607 |
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