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Figure 1
(a) Schematics of a SAXS experiment: the X-ray beam (red) hits the sample, photons are scattered by the sample and are collected on the detector. The transmitted direct beam is intercepted by the beamstop. (b) Cross-sectional drawing of the beamstop illustrating its principle. The incident beam, represented by the red arrow, enters the tungsten chamber (in orange) and hits the back of the chamber. Part of the beam is scattered on the diode (in blue). The signal produced by the photons counted on the photosensitive area (in yellow) is proportional to the incident beam intensity. (c) Photograph of the beamstop elements: the diode (in the center), is mounted on the profiled aluminium bar (on the left) and covered by the tungsten chamber (on the right).

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ISSN: 1600-5775
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