Figure 4
One column of the CCD image through an irradiated Fe(002) reflection at 77 K, illustrating the point spread function of the detector. To increase the dynamic range of the detector, three images with exposure times of 0.5 s, 10 s and 100 s have been combined. A constant background has been subtracted. Shown for comparison is a column through a (111) reflection from a 15 µm-thick Si wafer. |