Figure 8
Speckle images in (a) the direct beam (`reference' data set) and (b) the diffracted beam (`sample' data set) generated by a double-diamond-crystal setup as shown in Fig. 2(d). (c) Gaussian-smoothed image of (a). (d) Reconstructed wavefront phase error, ϕ(x, y), introduced by the double-diamond-crystal reflections. (e) RMS phase errors, σϕ, within 100 m × 100 m (x × y) subareas extracted from (d). |