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Figure 6
(a) Vertical edge scan over the focused beam at the sample position in P09-EH1 at 8 keV using the mirrors as the focusing device in the 2.65 mrad configuration (cf. Table 1[link]). The vertical beam size is 29 µm. The derivative of the fit to the edge function (dotted line) is shown as a full line. (b) Wire scan (inverted) using a 5.8 µm wire over the beam, refocused by compound refractive lenses, positioned 1.9 m before the sample position in EH1 at 76.7 m, with a virtual source at 93 m (prefocused by the mirror). The width of 4 µm is derived from a fit of a Lorentzian convoluted by the Gaussian representing the wire thickness.

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