Abstract

The neutron Time-of-Flight BRIllouin SPectrometer BRISP for inelastic neutron scattering at small angles was developed and constructed at ILLs High Flux Reactor for investigating a host of open scientific problems in the low momentum region with relatively high incoming neutron energies. With this dedicated instrument, the high-frequency dynamics of atomic nuclei and electron spins is studied in rather different materials. Originally planned for the investigation of disordered and magnetic systems,BRISP has immediately found a natural experimental extension to the study of those systems that have attracted in recent years a growing interest in the scientific community e.g., confined liquids, glasses, and biological macromolecules. A presentation ofthe instrument will be provided together with the illustration of some recent promising experiments.

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