Figure 2
Alignment for the longitudinal position in the depth-resolved Bragg CDI. (a) After the x and y coordinates have been aligned, the Bragg peak intensity is scanned with the ω-scan rotation providing the rocking curve data. Then, x profiles are measured on the opposite sides of that curve: ω1 and ω2. (b) If the particle was seated off the axis of rotation, the x position of the peak would shift between these two scans. The misalignment along the beam direction is calculated as the amount of that shift divided by the angular difference expressed in radians. |