Dresden 2006 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Downloads | Hilfe
CPP: Chemische Physik und Polymerphysik
CPP 27: POSTER Polymer Physics and Materials
CPP 27.8: Poster
Donnerstag, 30. März 2006, 17:00–19:00, P2
Spin-Echo Neutron Reflectivity on Diblock-Copolymer Films — •Max Nülle1, Adrian Rühm2, Janos Major1, Ulrich Wildgruber2, and Helmut Dosch1 — 1Max-Planck-Institut für Metallforschung, Heisenbergstr. 3, 70569 Stuttgart — 2Max-Planck-Institut für Metallforschung, ZWE Neue Forschungsneutronenquelle Garching, Lichtenbergstr. 1, 85747 Garching bei München
SERGIS (Spin-Echo Resolved Grazing Incidence neutron Scattering) is a recently developed novel neutron scattering technique which will be routinely employed at the new X-ray/neutron reflectometer N-REX+ at FRM-II. In contrast to conventional scattering methods, SERGIS measures the lateral structure and morphology of surfaces and thin film systems in real space. The spatial resolution is achieved by measuring the total polarization of the scattered beam, without the usual need to collimate the beam in the direction of interest. Therefore SERGIS combines a high neutron flux with the ability to characterize structures from the nanometer scale up into the micron range, and can thus yield novel information about both equilibrium and time-dependent phenomena on these length scales. One typical example is morphologies produced by dewetting phenomena. First results of experiments on diblock-copolymer films will be presented.