Normalization of the fluorescence signal by the incident flux alone is sometimes insufficient to compensate for the glitches.
If incorrectly compensated, they degrade the spectroscopic data. Glitches are sharp dips or spikes in the diffracted intensity at specific crystal orientations. This method is susceptible to the `glitches' produced by all single-crystal monochromators.
EXAFS studies on dilute samples are usually carried out by collecting the fluorescence yield using a large-area multi-element detector.