14.10 Possible implementation of focusing based on Bragg diffraction optics for TOF neutron scattering devices

摘要

Neutron Bragg diffraction optics (NBDO) employing cylindrically bent perfect crystals (BPC) as neutron monochromators/analyzers has been proved as a powerful way how to increase luminosity and angular/energy resolution of some dedicated scattering devices installed at steady state neutron sources, namely when smaples of small dimensions have to be investigated. However, in the case of scattering devices working in the TOF regime, the use of NBDO based on the BPC elements is far from a large exploitation. In this paper we introduce some new practical applications of NBDO arrangements which can be used for time and spatial focusing and can be implemented on the TOF instruments.