Non-binary phase gratings for x-ray imaging with a compact Talbot interferometer

Yaroshenko A, Bech M, Potdevin G, Malecki A, Biernath T, Wolf J, Tapfer A, Schuettler M, Meiser J, Kunka D, Amberger M, Mohr J, Pfeiffer F (2014)

Publication Type: Journal article

Publication year: 2014

Journal

Optics Express Optical Society of America

Book Volume: 22

Pages Range: 547-556

Journal Issue: 1

DOI: 10.1364/OE.22.000547

Abstract

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. © 2013 Optical Society of America.

Involved external institutions

Technische Universität München (TUM) DE Germany (DE) Karlsruhe Institute of Technology (KIT) DE Germany (DE)

How to cite

APA:

Yaroshenko, A., Bech, M., Potdevin, G., Malecki, A., Biernath, T., Wolf, J.,... Pfeiffer, F. (2014). Non-binary phase gratings for x-ray imaging with a compact Talbot interferometer. Optics Express, 22(1), 547-556. https://doi.org/10.1364/OE.22.000547

MLA:

Yaroshenko, Andre, et al. "Non-binary phase gratings for x-ray imaging with a compact Talbot interferometer." Optics Express 22.1 (2014): 547-556.

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