X-ray spectroscopy station for sample characterization at ELI Beamlines

• Published in: Scientific reports Vol. 13; no. 1; p. 17258
• Main Authors: Zymaková, A., Precek, M., Picchiotti, A., Błachucki, W., Zymak, I., Szlachetko, J., Vankó, G., Németh, Z., Sá, J., Wiste, T., Andreasson, J.
• Format: Journal Article
• Language: English
• Published: London Nature Publishing Group UK 12.10.2023; Nature Publishing Group; Nature Portfolio
• Subjects: 639/301; 639/766; Calibration; Crystals; Emission spectroscopy; Energy; Experiments; Geometry; Humanities and Social Sciences; Infrastructure; Instrumentation; Lasers; multidisciplinary; Radiation; Science; Science (multidisciplinary); Sensors; Spectrometers; Spectrum analysis; Thin films; X-ray spectroscopy; X-rays
• ISSN: 2045-2322; 2045-2322
• DOI: 10.1038/s41598-023-43924-y

X-ray spectroscopy is a demanded tool across multiple user communities. Here we report on a new station for X-ray emission spectroscopy at the Extreme Light Infrastructure Beamlines Facility. The instrument utilizes the von Hamos geometry and works with a number of different sample types, notably including liquid systems. We demonstrate a simple and reliable method for source position control using two cameras. This approach addresses energy calibration dependence on sample position, which is a characteristic source of measurement uncertainty for wavelength dispersive spectrometers in XES arrangement. We also present a straightforward procedure for energy calibration of liquid and powder samples to a thin film reference. The developed instrumentation enabled us to perform the first experimental determination of the Kα lines of liquidized K 3 Fe(CN) 6 as well as powdered and liquidized FeNH 4 (SO 4 ) 2 . Finally, we report on proof-of-principle use of a colliding jet liquid sample delivery system in an XES experiment.