Figure 5.

A demonstration of the automatic ROI detection. (a) Schematic drawing of the experimental setup used to reconstruct the images in parts (d) and (e) of this figure. It also shows the setup geometries and laboratory frames we use for the detailed description in the text. (b) Original detector image, showing 12 (extended) analyzer foci of a gas sample (intensity is shown on a logarithmic scale). (c) Automatically detected ROIs (ROIs in red). (d) Two-dimensional reconstruction of a sample position scan along the horizontal direction perpendicular to the X-ray beam (y) and (e) reconstruction of a sample position scan along the vertical direction (z).