Figure 2
Schemes A and B depict the measurement of wavefront distortions during diffraction from a flat crystal sample (a) and a channel-cut crystal sample (b), respectively. The dashed lines illustrate the reference beam path when the crystal(s) and detector move to the dotted positions. Photograph (c) visualizes the DES system, while photograph (d) showcases the double-edge structure. The diffracted image (e) captures the result with a flat crystal sample in the beam path. |