The new very-small-angle neutron scattering spectrometer at Laboratoire Léon Brillouin

Abstract

The design and characteristics of the new very-small-angle neutron scattering spectrometer under construction at the Laboratoire Léon Brillouin are described. Its goal is to extend the range of scattering-vector magnitudes towards 2 × 10−4 Å−1. The unique feature of this new spectrometer is a high-resolution two-dimensional image-plate detector sensitive to neutrons. The wavelength selection is achieved by a double-reflection supermirror monochromator and the collimator uses a novel multibeam design.