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Comparison of data processing techniques for single-grating x-ray Talbot interferometer data

Comparison of data processing techniques for single-grating x-ray Talbot interferometer data
Comparison of data processing techniques for single-grating x-ray Talbot interferometer data

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.

Phase-contrast imaging, Phase-stepping technique, Spatial harmonic imaging, X-ray grating interferometer
10391
SPIE
Marathe, Shashidhara
b65aaafb-416e-44a3-a60b-fed533218626
Zdora, Marie Christine
a2e3b04b-aef4-42f8-9e96-4707149589fb
Zanette, Irene
39ee899c-0aae-4fac-aec6-826f848a8022
Cipiccia, Silvia
183eb20f-af28-4a59-b666-857bda9abba6
Rau, Christoph
f29342b8-92a1-4855-a20c-3960de6e6053
Wang, Ge
Muller, Bert
Marathe, Shashidhara
b65aaafb-416e-44a3-a60b-fed533218626
Zdora, Marie Christine
a2e3b04b-aef4-42f8-9e96-4707149589fb
Zanette, Irene
39ee899c-0aae-4fac-aec6-826f848a8022
Cipiccia, Silvia
183eb20f-af28-4a59-b666-857bda9abba6
Rau, Christoph
f29342b8-92a1-4855-a20c-3960de6e6053
Wang, Ge
Muller, Bert

Marathe, Shashidhara, Zdora, Marie Christine, Zanette, Irene, Cipiccia, Silvia and Rau, Christoph (2017) Comparison of data processing techniques for single-grating x-ray Talbot interferometer data. Wang, Ge and Muller, Bert (eds.) In Developments in X-Ray Tomography XI. vol. 10391, SPIE. 7 pp . (doi:10.1117/12.2274021).

Record type: Conference or Workshop Item (Paper)

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.

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Published date: 1 January 2017
Venue - Dates: Developments in X-Ray Tomography XI 2017, , San Diego, United States, 2017-08-08 - 2017-08-10
Keywords: Phase-contrast imaging, Phase-stepping technique, Spatial harmonic imaging, X-ray grating interferometer

Identifiers

Local EPrints ID: 452155
URI: http://eprints.soton.ac.uk/id/eprint/452155
PURE UUID: fe617f4b-5944-47e7-91aa-3f70730ab828

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Date deposited: 25 Nov 2021 23:16
Last modified: 16 Mar 2024 07:11

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Contributors

Author: Shashidhara Marathe
Author: Marie Christine Zdora
Author: Irene Zanette
Author: Silvia Cipiccia
Author: Christoph Rau
Editor: Ge Wang
Editor: Bert Muller

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