Regensburg 2007 – wissenschaftliches Programm
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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 7: POSTER: INTERNAL SYMPOSIUM Scattering Experiments
CPP 7.32: Poster
Montag, 26. März 2007, 16:00–18:00, Poster B
Horizontal ToF-Neutron Reflectometer REFSANS at FRM II Munich: Potential and First Experimental Results — •Reinhard Kampmann1, Martin Haese-Seiller1, Valeri Kudryashov1, Bert Nickel2, Peter Müller-Buschbaum4, Christine Papadakis4, Wilhelm Fenzl2, Andreas Schreyer1, Erich Sackmann3, and Joachim Rädler2 — 1GKSS-Forschungszentrum Geesthacht GmbH, D-21502 Geesthacht, Germany — 2Department für Physik, Ludwig-Maximilians-Universität, D-80539 München, Germany — 3Physik-Department E22, TU-München, D-85748 Garching, Germany — 4Physik-Department E13, TU-München, D-85748 Garching, Germany
The reflectometer REFSANS allows to perform comprehensive analyses of vertical and lateral surface and interface structures by means of specular and off-specular neutron reflectivity as well as small-angle neutron scattering at grazing incidence (GISANS). All measurements can be performed on the air-water interface (horizontally aligned sample). REFSANS has been put into operation in 2005/06. Its performance is demonstrated by results of first reflectivity as well as GISANS measurements on nanostructured polymer and metallic films. The potential of this novel instrument for measuring weak off-specular scattering, GI-SANS and extremely low specular reflectivity including the case of a strongly incoherently scattering substrate is discussed.
This work has been supported by the German Federal Ministry of Education, Research and Technology (BMBF) under contracts 03-KA5FRM-1 and 03-KAE8X-3.