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

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 configura...

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Detalles Bibliográficos
Autores principales: Afshari, M., Krumey, P., Menn, D., Nicoul, M., Brinks, F., Tarasevitch, A., Sokolowski-Tinten, K.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Crystallographic Association 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6941949/
https://www.ncbi.nlm.nih.gov/pubmed/31934600
http://dx.doi.org/10.1063/1.5126316
Descripción
Sumario: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(α)-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. [Formula: see text] Ti-K(α1) photons per pulse with [Formula: see text] relative bandwidth are delivered to the sample at a repetition rate of 10 Hz. This allows for the high dynamic range (10(4)) measurements of transient changes in the rocking curves of materials as for example induced by laser-triggered strain waves.