Abstract
Theoretical relations for optimum adjustments of two arrangements of a double-bent-crystal (DBC) small-angle neutron scattering (SANS) diffractometer are discussed. Results of several experiments demonstrate the applicability of DBC SANS in the investigation of some technologically important materials in the range of scattering-vector sizes 0.0002–0.02 Å−1. Formulas derived for data analysis, which describe the transformation of the SANS cross section to the measured intensity, indicate that water calibration is not required and that the indirect method of data evaluation is the most appropriate.
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