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Figure 1
(a) Sketch of the X-ray beam path for cone (top) and parallel (bottom) beam configurations with the sample stage. (b) Flat-field of the cone-beam setup obtained with a germanium waveguide at 13.8 keV with 350 ms exposure time. (c) Flat-field of the parallel-beam setup at 13.8 keV [35 ms exposure time, 600 µm (24 times 25 µm) Si attenuator foils]. Exit window of the KB vacuum tank cut into the flat-field at the top left corner. Scale bars: (b) 1.95 mm in the detector plane corresponding to an angle of 0.38 mrad or 50 µm in the object plane; (c) 200 µm (detector and object plane). |
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