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Non-binary phase gratings for x-ray imaging with a compact Talbot interferometer
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- Yaroshenko, Andre (author)
- Technical University of Munich
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- Bech, Martin (author)
- Lund University,Lunds universitet,Medicinsk strålningsfysik, Lund,Sektion V,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,X-ray Phase Contrast,Forskargrupper vid Lunds universitet,Medical Radiation Physics, Lund,Section V,Department of Clinical Sciences, Lund,Faculty of Medicine,Lund University Research Groups,Technical University of Munich
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- Potdevin, Guillaume (author)
- Technical University of Munich
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- (creator_code:org_t)
- 2014
- 2014
- English 10 s.
- In: Optics Express. - 1094-4087. ; 22:1, s. 56-547
- Journal article (peer-reviewed)
Abstract
Subject headings
Close
- X-ray imaging using a Talbot-Lau interferometer, consisting of three binary gratings, is a well-established approach to acquire x-ray phase-contrast and dark-field images with a polychromatic source. However, challenges in the production of high aspect ratio gratings limit the construction of a compact setup for high x-ray energies. In this study we consider the use of phase gratings with triangular-shaped structures in an x-ray interferometer and show that such gratings can yield high visibilities for significantly shorter propagation distances than conventional gratings with binary structures. The findings are supported by simulation and experimental results for both cases of a monochromatic and a polychromatic source.
Subject headings
- NATURVETENSKAP -- Fysik -- Annan fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Other Physics Topics (hsv//eng)
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Radiologi och bildbehandling (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Radiology, Nuclear Medicine and Medical Imaging (hsv//eng)
Keyword
- Computer Simulation
- Computer-Aided Design
- Equipment Design
- Equipment Failure Analysis
- Interferometry/instrumentation
- Lighting/instrumentation
- Models, Theoretical
- Refractometry/instrumentation
- X-Ray Diffraction/instrumentation
Publication and Content Type
- art (subject category)
- ref (subject category)
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- Pfeiffer, Franz
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