Time-resolved diffraction with an optimized short pulse laser plasma X-ray source.

Struct Dyn

Faculty of Physics and Center for Nanointegration Duisburg-Essen, University of Duisburg-Essen, Lotharstrasse 1, 47048 Duisburg, Germany.

Published: January 2020

We present a setup for time-resolved X-ray diffraction based on a short pulse, laser-driven plasma X-ray source. The employed modular design provides high flexibility to adapt the setup to the specific requirements (e.g., X-ray optics and sample environment) of particular applications. The configuration discussed here has been optimized toward high angular/momentum resolution and uses K -radiation (4.51 keV) from a Ti wire-target in combination with a toroidally bent crystal for collection, monochromatization, and focusing of the emitted radiation. Ti-K photons per pulse with relative bandwidth are delivered to the sample at a repetition rate of 10 Hz. This allows for the high dynamic range (10) measurements of transient changes in the rocking curves of materials as for example induced by laser-triggered strain waves.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6941949PMC
http://dx.doi.org/10.1063/1.5126316DOI Listing

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