Figure 4
Schematic demonstrating the amount of foil fluorescence entering I1 in the horizontal plane from any point of fluorescence (PoF) along the line of fluorescence. Ls = length of Soller slit blades. Ds = distance between Soller slit blades (S1 + S2). DI = distance from foil to I1 (Ls + X1 + X2). X1 = distance from foil to Soller slit. X2 = distance from Soller slit to I1. PH = horizontal projection onto I1. Since PH = C1 + C2, and C1/S1 = C2/S2 = DI/(DI − X1), then PH = DIDS/(DI − X2). |