Figure 1
(a) The strong anomalous signal typically produced in SeMet data sets collected at the K absorption edge of selenium. The orange and dark blue lines correspond to χ2 statistics with Friedel mates either merged together or considered separately, respectively. The difference between these two lines represents the significance of the anomalous signal at the level of individual observations. The comparison of the Rmerge statistics for the merged or unmerged Friedel pairs, described by green and red curves, respectively, is also presented, but is less informative. (b) An example of a weak but significant anomalous signal produced by sulfur anomalous scattering at Cu Kα wavelength. |