Referenceless, grating-based, single shot X-ray phase contrast imaging with optimized laser-driven K-α sources

With its ability to efficiently probe low-Z materials, X-ray phase imaging methods have recently raised high interest in multiple fields from biology and medical applications to high energy density (HED) physics. Initially developed with synchrotron light and X-ray tubes, we present a novel grating...

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Bibliographic Details
Published in:Optics express 2024-04
Main Authors: Bouffetier, Victorien, Perez-callejo, Gabriel, Stutman, Dan, Stoeckl, Christian, Begishev, Ildar, Theobald, Wolfgang, Filkins, Timothy, Mileham, Chad, ceurvorst, luke, Klein, Sallee, Goudal, thibault, Casner, Alexis, Valdivia, Maria
Format: Article
Language:English
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Summary:With its ability to efficiently probe low-Z materials, X-ray phase imaging methods have recently raised high interest in multiple fields from biology and medical applications to high energy density (HED) physics. Initially developed with synchrotron light and X-ray tubes, we present a novel grating based Talbot X-ray deflectometer (TXD) diagnostic that was coupled with laser-generated K-α X-ray sources. The multi-terawatt laser (I > 1 × 10^14 W/cm^2) was used as a testbed for diagnostic development. It was found that X-ray source chromaticity plays an important role in TXD. Indeed, the broadband spectrum of laser-generated X-ray sources may strongly impact image quality and thus diagnostic performance. We qualified X-ray emission from different laser-produced sources and determined laser, target, and deflectometer parameters that optimize TXD performance. We present the first results of referenceless grating-based X-ray imaging at high-power laser facilities and discuss the implications of this new development in HED research.
ISSN:1094-4087
1094-4087