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

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title = "Non-binary phase gratings for x-ray imaging with a compact Talbot interferometer",
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.",
keywords = "Computer Simulation, Computer-Aided Design, Equipment Design, Equipment Failure Analysis, Interferometry/instrumentation, Lighting/instrumentation, Models, Theoretical, Refractometry/instrumentation, X-Ray Diffraction/instrumentation",
author = "Andre Yaroshenko and Martin Bech and Guillaume Potdevin and Andreas Malecki and Thomas Biernath and Johannes Wolf and Arne Tapfer and Markus Sch{\"u}ttler and Jan Meiser and Danays Kunka and Maximilian Amberger and Juergen Mohr and Franz Pfeiffer",
year = "2014",
month = "1",
day = "13",
doi = "10.1364/OE.22.000547",
language = "English",
volume = "22",
pages = "547--56",
journal = "Optics Express",
issn = "1094-4087",
publisher = "OSA",
number = "1",