Speaker
Pierre Courtois
(ILL)
Description
Neutron optics are widely used in neutron scattering instrumentation to define beam properties at the sample position (direction, divergence, energy, resolution, polarization, etc…). Since the primary neutron flux is low, neutron optical devices have to be highly efficient. Main concepts and components for designing the optics of neutron instruments are presented. It includes reflection optics such as neutron guide and supermirrors but also diffraction optics with mosaic crystal monochromators and analyzers. Focusing devices are also dealt with in the presentation. Some examples of applications will be given, especially in the case of continuous neutron sources.