Development of a neutron spin echo spectrometer using four sequential reflection of multilayer spin splitters

We propose two types of modified neutron spin echo (NSE) spectrometer using the quantum precession caused by multilayer spin splitters. The first spec trometer is constructed by replacing the precession magnet with a pair of t wo spin splitters. The new NSE spectrometer requires much less volume and m agnetic field compared to the conventional NSE spectrometer. The second spe ctrometer is designed to measure the small angle scattering from a plane sa mple. The principle and performances of the two types of the modified metho ds are discussed. (C) 1999 Elsevier Science Ltd. All rights reserved.