Figure 3
Measured FWHM of the spectrometer resolution function for different off-focus geometries after dispersion compensation (Honkanen et al., 2014b), in which analyzer crystals are displaced along the scattered beam direction to create a finite-sized focal spot on the detector and correcting for the dispersion pixel-by-pixel within that focal spot. The used analyzer openings were 80 mm, defined with lead masks with circular apertures. Horizontal lines depict the corresponding resolution function without dispersion compensation. |