Fig. 10: Schematics of radial integration (left), integration result (mid), and associated fitting result with amplitude, mean, and standard deviation shown (right).
From: A machine learning model for textured X-ray scattering and diffraction image denoising

The figure illustrates how the metrics of delta amplitude, delta mean, and delta standard deviation used in this work were defined and calculated. Perfectly symmetrical distribution of diffraction arcs implies 180 degrees for delta mean. Units along horizontal axes are in degrees.