Regensburg 2019 – wissenschaftliches Programm

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 25: Poster Session II

CPP 25.42: Poster

Dienstag, 2. April 2019, 14:00–16:00, Poster B1

A Combined SAXS-SANS instrument at ILL — •Ezzeldin Metwalli, Klaus Götz, Christian Bär, and Tobias Unruh — Institute for Crystallography and Structural Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91058 Erlangen, Germany

In the last few decades, small angle X-ray and neutron scattering (SAXS/SANS) methods have been used extensively for investigating nano-scale structured materials. Combining both SAXS and SANS techniques in a single experiment will open a new route for a novel nano-analytical method. Simultaneous SAXS and SANS measurements will provide structural information from the same sample volume allowing unique different contrast conditions. Moreover, exploiting X-ray and neutron radiation for time-resolved studies will simultaneously provide nano-scale structural information at two different contrast situations, ensuring the exactness of the probed samples compared with independent experimental approach. Here, we introduce an advanced portable SAXS system that is dimensionally suitable to be installed on D22 instrument at ILL. The new portable SAXS system is based on Copper/Molybdenum switchable microfocus rotating anode X-ray generator and a Dectris detector with a changeanble sample-to-detector distance of up to 1.5 m in a vacuum tube. The unprecedented combined experimental approach using simultaneous SAXS/SANS methods will open the way for investigating a truly wide range of innovative materials such as smart self-assembling nanomaterials, multifunctional materials, and organic/inorganic hybrid nanomaterials.

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