Resonant X-ray diffraction using high-resolution image-plate data

The experimental setup for the collection of synchrotron X-ray powder diffraction data from samples with high absorption (μR> 10) is described. It consists of a combination of a vacuum chamber with an image-plate system. A numerical absorption correction for the applied geometry has been derived and the data were corrected accordingly. Values forf ′(Er) andf ′′(Er) were refined from eight measurements on Er5Re2O12above and below the ErLIIIabsorption edge. Successful refinement of the crystallographic data has verified the high quality of the collected intensities.