Neutron multilayer structures for fundamental experiments in UCN optics

The experience in manufacturing and testing of neutron multilayer structures, interference filters, is described. Construction of a gravity UCN spectrometer based on the use of such devices is also reported. Some results of the test experiment of the UCN dispersion law performed with such a spectrometer are presented. Among them are the resonant mode mixing effect due to scattering by the roughness. Some possibilities of new experiments based on a similar method are investigated.© (1999) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.