Berlin 2015 – wissenschaftliches Programm
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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 51: P16: New Instruments and Methods
CPP 51.3: Poster
Mittwoch, 18. März 2015, 10:00–13:00, Poster A
3D-cross correlated light scattering in combination with small-angle neutron scattering — •Yvonne Hertle1, Annegret Günther1,2, Fangfang Chu2, Daniel Clemens2, Matthias Ballauff2, and Thomas Hellweg1 — 1Universität Bielefeld, PC III, Universitätsstr. 25, 33615 Bielefeld — 2Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, EM-ISFM, Hahn-Meitner-Platz 1, 14109 Berlin
For researchers, particularly from the field of soft condensed matter, scattering techniques are an important element for the characterization of a wide variety of systems. Light scattering (LS) is suitable to determine the overall particle shape and size, however, small-angle neutron scattering (SANS) provides information of the internal structure. The big difference between these two methods is the concentration range in which the samples are characterized. Conventional LS-experiments can only be performed on diluted samples to assure that only single-scattered light is detected, while for a SANS-measurement highly concentrated samples are required. In order to measure highly concentrated samples with LS, a 3D-LS setup is used, where multiple scattering is eliminated by performing two simultaneously light scattering experiments. Currently a combination of 3D-LS with a small-angle neutron scattering instrument (V16) at the Helmholtz-Zentrum in Berlin is build up to measure simultaneously two different scattering experiments on the same sample.