Figure 2
Calculated reflectivity of the vertically focusing mirror for 30 keV (black), 40 keV (red) and 50 keV (green) photons as a function of grazing angle of incidence (Stepanov, undated). Reflecting surface: Pd, 400 Å thick, density correction factor 0.9, vapor-deposited on a glass substrate. The rapid fluctuations of the reflectivity are not observed due to averaging over the grazing angle interval of ±0.1 mrad over the footprint of the beam. The vertical bar represents the optimal mirror angle at 2.0 mrad. |