Figure 3
Ray-tracing simulation of polychromatic radiation diffracted from the Si (111) monochromator described in the text. The horizontal axis shows the deviation of the beam from the straight direction at 10 m from the monochromator. The spot on the right corresponds to the first harmonic while the small spot on the left is unresolved third and fourth harmonics. The separation of the harmonics is easily visible. The simulation was performed for α = 0° and β = 75°. |