Instrumental Widths And Intensities In Neutron Crystal Diffractometry

The amplitude and the shape of the quasielastic resolution function of a neutron two-axis spectrometer are calculated in the Gaussian approximation. Special attention is given to the explicitness of the formulae as well as to their absolute correctness, avoiding any unknown proportionality factors. The results are applied to the analysis of the elastic scattering of neutrons in crystals.