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Figure 14
The detector is scanned across the incident X-ray beam in steps of 10 µm. At each point in the scan images are acquired at 100 FPS. The X-ray beam position is obtained using a 2D Gaussian fit of the resulting image. Inset: scan with 3 µm requested step size. The error bars are the standard deviation of the beam position obtained from sequential images acquired at each step.

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