Figure 1
Optimized profile-fitting area. The contour plot of a small area extracted from a diffraction pattern is shown in blue. Three spots are clearly visible. The contour plot of the reference profile associated to the spot in the centre is shown in green. Green contour lines are drawn at levels of 1–10% of the reference profile-peak value. The external contour line (red arrow), corresponding in this case to the 1% level, delineates the fitting area associated to the spot. |