RT info:eu-repo/semantics/article
T1 Referenceless, grating-based, single shot X-ray phase contrast imaging with optimized laser-driven K-α sources
A1 Bouffetier, V.
A1 Stutman, D.
A1 Stoeckl, C.
A1 Begishev, I. A.
A1 Theobald, W.
A1 Filkins, T.
A1 Mileham, C.
A1 Ceurvorst, L.
A1 Klein, S. R.
A1 Goudal, T.
A1 Casner, A.
A1 Valdivia, M. P.
A1 Pérez Callejo, Gabriel
K1 Física
K1 Óptica
AB 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 × 1014 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.
PB Optica Publishing Group
SN 1094-4087
YR 2024
FD 2024
LK https://uvadoc.uva.es/handle/10324/69678
UL https://uvadoc.uva.es/handle/10324/69678
LA spa
NO Optics Express, Septiembre 2024, vol. 32, n. 20, p. 34694-34709
NO Producción Científica
DS UVaDOC
RD 19-oct-2024