An experimental investigation of the effects of axial divergence on diffraction line profiles

摘要

An experimental investigation has been carried out to determine the extent ot which axial divergence in a conventional powder diffractometer influences the measurement of peak profile parameters. A Siemens D5000-θ-2θ diffractometer was used for this study along with the LaB_6 line profile standard SRM 660. Eight unique levels of axial divergence were investigated either by removing one or more of the Soller slits, or by introducing different combinations of Soller slits in the incident and diffracted beams.