The measurement of integrated intensities from polymeric-fibre X-ray diffraction photographs

A method is described whereby integrated intensities can be obtained from X-ray diffraction photographs of polymeric fibres. Contour maps of optical density are produced using a digital microdensitometer and `Photowrite' manufactured by Optronics International, Inc., and the total intensity obtained by integrating round contour lines. The method takes less time than making radial scans through the peak intensity of each reflection arc with a scanning microdensitometer, and correcting for the spread in the circumferential direction.