Regensburg 2019 – wissenschaftliches Programm

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DY: Fachverband Dynamik und Statistische Physik

DY 25: Granular Matter / Contact Dynamics

DY 25.4: Vortrag

Mittwoch, 3. April 2019, 10:30–10:45, H3

Extending Differential Dynamic Microscopy (DDM) to X-ray imaging — •Manuel Baur and Matthias Schröter — Institute for Multiscale Simulation, FAU, Erlangen

We study a dense granular system in a water fluidized bed via X-ray radiography. The particles exhibit a 3D motion, which is not understood. Differential Dynamic Microscopy (DDM) is a well established technique to analyze the dynamics of dilute colloidal systems. We apply this method to X-ray imaging of a granular system. The physics behind the imaging is quite different; i.e. optical light scattering captured with a microscopy vs. X-ray attenuation according to Lambert-Beers law. We discuss to what extend this influences the analysis.