Figure 6
Diffraction pattern of a Fresnel bimirror at three different incident angles equivalent to (a) D = 1.4 µm, (b) D = 2.9 µm and (c) D = 7.3 µm slit separation (energy interval 5–25 keV). At ±200 µm from the centre, 200 energy spectra are shown in a logarithmic grey-scale map. Each horizontal line represents an energy spectrum measured through a 5 µm pinhole (black is high intensity). |