Figure 3. The central part of collected diffraction patterns around the same sample position with different motor speed and the same exposure time: (a) 600 μm/s, (b) 450 μm/s, (c) 300 μm/s, (d) 150 μm/s.

With a faster scan speed, a larger sample area is scanned over a single exposure period, resulting in a more blurry diffraction pattern.