Figure 7
Scan over the total width of the MM in double reflection at 4 keV for a grazing incidence angle of 0.814°. The reflectance is about 35% on the Ir-coated stripes, and it vanishes when the beam is blocked by the ribs. The curvature of the stack, with a radius of about 0.7 m, caused the beam to be blocked by the reflecting plate around the 95 mm and 120 mm positions before it is reflected by the plate below. |