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Figure 1
QWP experimental setup representation, with a vacuum chamber. This chamber is required at the EMA beamline at SIRIUS because the setup is directly connected to the beamline vacuum. The inset details the motors assembly, which can be used for alignment corrections during an XMCD experiment, and the support for up to ten diamond QWPs with different thicknesses to access different energy ranges. This schematic describes how a slit scans the dispersive beam for energy selection to allow integrating transmission detectors (photodiodes, in this case) to be used for lock-in detection, not possible with conventional dispersive optics.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 27| Part 5| September 2020| Pages 1240-1246
https://doi.org/10.1107/S1600577520009558
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