P. Lukas et al., DOUBLE BENT CRYSTAL DIFFRACTOMETER FOR SANS EXPERIMENTS, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 338(1), 1994, pp. 111-115
The medium resolution SANS diffractometer equipped with a pair of bent
perfect crystals set in symmetric Bragg reflection geometry has been
employed in NPI Rez in the last decade. The technical realization of a
new version of the diffractometer with fully asymmetric diffraction g
eometry of the analyzer in combination with linear PSD was finished re
cently. The present paper provides a methodological comparison of both
concepts as well as an example of medium resolution SANS experiment o
n a Vycor glass.