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Verhandlungen
Verhandlungen
DPG

Regensburg 2013 – wissenschaftliches Programm

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 9: Poster: Interfaces and Thin Films (joint session with DECHEMA and VDI)

CPP 9.28: Poster

Montag, 11. März 2013, 17:30–19:30, Poster C

NREX polarized neutron/x-ray contrast reflectometer — •Olaf Soltwedel, Yury N. Khaydukov, Thomas Keller, Franz Tralmer, Manfred Ohl, and Bernhard Keimer — Max-Planck-Institut für Festkörperforschung, Stuttgart, Germany

NREX is a classical angle dispersive, fixed wavelength neutron reflectometer at the cold neutron source of the FRM II in Garching/Munich. The instrument provides grazing incidence small angle scattering (GISANS), specular and off-specular reflectometry all in polarized and nonpolarized modes. These techniques are well suited to determine structural properties such as chemical aggregation, polymer and surfactant adsorption, interdigitation in low dimensions (surfaces, interfaces and thin film systems) at solid/liquid and solid/air interfaces. With a conventional x-ray add on (CuKα), the instrument offers the unique possibility to combine x-ray- and neutron reflectometry in-situ. Recent developments, exemplary measurements and future perspectives of NREX will be presented.

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