High-resolution SANS diffractometer is one of two experimental facilities operated at the neutron channel HK8. The double-bent-crystal SANS diffractometer MAUD is designed for the measurements of neutron small-angle scattering in the high Q-resolution mode. In contrast to the conventional double-crystal arrangements, the fully asymmetric diffraction geometry on the elastically bent Si analyzer is employed inorder to transfer the angular distribution of the scattered neutrons to the spatial distribution. It enables then to analyze the whole scattering curve by a one-dimensional position sensitive detector.
The instrument is mainly suited to investigation of structural or compositional inhomogeneities in materials in the size range 0.05÷2 micrometer, mainly porous materials and large precipitates in alloys.