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Figure 7
The Patterson functions calculated from the Qz scans extracted from two independent 3D reciprocal-space maps [panels (a) and (b)] of nw1 depicted in the SEM images in Fig. 1[link]. The insets show the Qz scans along with the positions of the Qz-windows from which the Patterson functions have been obtained. The main panels display the Patterson functions; the parameters of the curves refer to the Qz-windows, the curves are shifted vertically for clarity. The vertical red lines mark the maxima of the Patterson functions; it is obvious that the functions calculated from different Qz-windows and the functions obtained from various scans in panels (a) and (b) exhibit the maxima in the same positions. The Patterson functions from the scan in panel (a) have been fitted to the model described in the main text; the fitted curves are denoted by blue lines.

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RADIATION
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