Short Description
The Xeuss 3.0 HR small and wide angle X-ray scattering system from Xenocs (Grenoble, France) allows the simultaneous measurement of the scattering intensity at small scattering angles (SAXS) and at larger scattering angles (WAXS) using 2D "Hybrid Single Photon Counting" detectors (Eiger2R 1M and Eiger2R 500 K from Dectris, Switzerland). Special features are the detector positions within the vacuum tube, which can be adjusted in all spatial directions, as well as the automatically adjustable beam collimation between 50 µm and 2000 µm beam size. This enables a particularly high level of flexibility in choosing the measurable scattering angle range, the achievable resolution and the achievable data quality.
The high photon flux of the Microfocus Cu Kalpha X-ray source allows, among other things, the measurement of time-dependent structural changes on the nanoscale, e.g. during charging and discharging of post-lithium-ion batteries. A wide variety of sample environments also make it possible to examine time-resolved processes during heating and cooling between -155 °C and 1000 °C, nanoparticle solutions in capillaries as well as solid and liquid samples in a variety of multi-sample holders. A GISAXS stage allows the investigation of nanostructures on flat substrates using GISAXS/GIWAXS. In addition to the monochromatic Cu Kalpha radiation, the system has another polychromatic microfocus Cu source, which enables X-ray microscopy with a spatial resolution of 20 µm.
Contact Person
Dr. Christian Prehal
Research Services
SAXS/WAXS measurements of nanoporous systems
nanoparticles or nanostructures in bulk materials
Time-resolved in situ SAXS/WAXS measurements, e.g., to investigate structural changes during charging and discharging of batteries, to investigate phase transformations on the nanometer scale, or to structurally investigate the synthesis of nanomaterials
Methods & Expertise for Research Infrastructure
In situ and operando experiments;
Development of sample environments for in situ and operando SAXS/WAXS experiments;
Machine learning supported SAXS / WAXS data analysis;
Stochastic modeling.
Allocation to research infrastructure
Volker Presser, INM - Leibniz Institut for New Materials, Saarbrücken, Germany
Alen Vizintin, National Institute of Chemistry, Ljubljana, Slovenia
Oskar Paris, Institute for Physics, Montanuniversität Leoben, Austria
2024
Christian Prehal
Projektpartner: Volker Presser, INM - Leibniz Institut für Neue Materialien, Saarbrücken, Deutschland
https://www.prehal-lab.eu/research