PPT Slide
Reference Intensity Ratio
Easiest way to bring diffraction peak intensities to common scale is to scale them to a particular peak in a common reference phase.
- deWolff and Visser (1964) suggested the (113) peak in corundum (100% line).
- Hence, Reference Intensity Ratio (RIR) is ratio of strongest peak of phase J to that of the corundum (113) in a 1:1 (w/w) mixture.
RIRJ,c = Ii,J / Ih,c
- Extension to general case RIR of phase a wrt phase b