Neutron time-of-flight techniques for investigation of the extinction effect

An application of the time-of-flight neutron diffraction technique to an investigation of the nature of the extinction effect in a single-crystal specimen is given. It is shown that the wavelength dependence of the extinction can be easily obtained by changing the scattering angle. An estimation of the extinction factor for a CuCl single crystal is given as an example and a comparison of the results with recent extinction theory [Becker & Coppens. Acta Cryst. (1974). A30, 129-147; 148-153] is made.