Perspectives for polarised reflectometry at the novel reflectometer REFSANS at FRM-II in Munich/Germany

摘要

The reflectometer REFSANS being built at the high flux reactor FRM-II in Munich is dedicated to the analysis of interfaces, phase boundaries and surfaces at the air-water interface of liquid/soft samples. Novel neutron optics have been developed for REFSANS to measure weak diffuse surface scattering most efficiently for comprehensive analyses of lateral surface structures. The machine may further be used for high-resolution SANS of bulk materials with the option of multi-beam focussing in the detector plane. Furthermore, REFSANS will allow of polarised investigations including polarisation analysis. This makes REFSANS a novel and unique tool for investigations on large-scale structures, especially for biological research projects: weak coherent scattering contributions may reliably be separated from incoherent scattering of hydrogen and comprehensive analyses of magnetic materials may be performed. (C) 2003 Published by Elsevier Science B.V. [References: 9]