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

被引：1

作者：

Bouffetier, V ^{[1
]}

Perez-Callejo, G. ^{[2
]}

Stutman, D. ^{[3
]}

Stoeckl, C. ^{[4
]}

Begishev, I. A. ^{[4
]}

Theobald, W. ^{[4
]}

Filkins, T. ^{[4
]}

Mileham, C. ^{[4
]}

Ceurvorst, L. ^{[4
]}

Klein, S. R. ^{[5
]}

Goudal, T. ^{[6
]}

Casner, A. ^{[7
]}

Valdivia, M. P. ^{[8
,9
]}

机构：

[1] European X Ray Free Electron Laser, Holzkoppel 4, D-22869 Schenefeld, Germany

[2] Univ Valladolid, Dept Fis Teor Atom & Opt, Valladolid 47011, Spain

[3] Inst Phys & Nucl Engn, ELI NP, Bucharest 077125, Romania

[4] Lab Laser Energet, 250 East River Rd, Rochester, NY 14623 USA

[5] Univ Michigan, Ann Arbor, MI 48109 USA

[6] CEA, DAM, DIF, F-91297 Arpajon, France

[7] CEA CESTA, CS 60001, F-33116 Le Barp, France

[8] Univ Calif San Diego, Ctr Energy Res, San Diego, CA USA

[9] Johns Hopkins Univ, Phys & Astron Dept, Baltimore, MD USA

来源：

OPTICS EXPRESS | 2024年 / 32卷 / 20期

关键词：

INTERFEROMETRY; RETRIEVAL;

D O I：

10.1364/OE.516695

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

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-alpha X-ray sources. The multi-terawatt laser (I > 1 x 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.

引用

页码：34694 / 34709

页数：16

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