Extended Data Fig. 7: Detector q map of the region of interest.
From: Nanoscale ultrafast lattice modulation with a free-electron laser

(a) The Q value for each pixel within the region of interest containing the Bragg peak and TG peaks. The axis labels are pixel indexes as shown in Extended Data Figure 6. (b), (c) and (d) are q maps of TG measurements for ΛTG = 9.2 and 11.8 nm. The black dashed lines are guiding lines for minimal q in each plot. The red box is the location of the TG peak.