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Figure 5
Series of images recorded by the PSD when the incident-photon energy E is tuned across the elastic line, which is centered at E0. One can observe how only a part of the square focus of Fig. 3[link] is illuminated at a given incident energy, reflecting the fact that there is a well resolved correspondence between the position of a pixel and the X-ray energy detected by it. The bandwidth of the incident radiation was 15 meV. The ultimately achievable resolution after the dispersion-compensation correction corresponds to the finite width of the line that sweeps across the focus. In this case, one pixel has a bandwidth of 7 meV and the width of the line is about 4 pixels. The square is a guide for the eye depicting the focal dimensions of 1.4 mm × 1.4 mm.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 12| Part 4| July 2005| Pages 467-472
https://doi.org/10.1107/S0909049505010630
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