Figure 4
(a) Transverse echo signals S(x) at the five points along the reflectivity curve indicated in Fig. 3(a). The energy deviation from the maximal diffraction condition is indicated. The blue dots are the data extracted from the simulated images [see examples in Figs. 3(d), (e)], while the red curves are the modelled multi-peak function [equation (11)]. (b) Same as (a) for the on-diffraction condition point (3) but in vertical logarithmic scale. The positions of the direct beam hump (0th-order echo) and of the transverse echoes are indicated. |