Paracrystalline microdomains in monatomic liquids. I. Radial density functions of liquid lead at 350, 450, and 550°C

An alignment procedure for $\vartheta -\vartheta$-goniometers was developed, using a NaCl single crystal floating on mercury. This method also allows the determination of the wavelength acceptance curve of the monochromator and thereby the elimination of the incoherent Compton scattering. The structure factors of liquid lead at 350, 450, and 550°C were determined with a commerical x-ray diffractometer using $\mathrm{Mo} K\alpha$ radiation. The resultant radial density functions were compared to those of Kaplow et al. and North et al. and found to lie at most distances between their results.