Abstract
A neutron double-crystal diffractometer (DCD) with a position sensitive detector for a simultaneous measurement of the whole scattering range was realized. In this arrangement the angular dependence of the intensity distribution is transformed into a positional one by an elastically bent perfect analyzer (second) crystal set in a completely asymmetric diffraction geometry. The DCD may be used to study scattered, diffracted, refracted or reflected neutron beams in small angles. By tuning the curvature of the analyzer momentum transfer in a range from 2 × 10 −4 nm −1 to 2 × 10 −1 nm −1 is available. At present this DCD is used for small-angle neutron scattering investigations as well as for experiments with neutron optical components.
Published Version
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