Figure 11
Calculated background intensities received on a 1 mm × 1 mm detector from a 10 µm aperture with guard slits of various apertures d at D = 0.4 m. The detection plane is 2.5 m beyond the guard slits. Circular beamstop: filled circles; cross-shaped beamstop: open circles. Results for an extended source (300 µm × 300 µm at 10 m) are also shown (large filled and open circles). |