Figure 7
Propagation of the beam impact (black dots) on the outmost crystal (dotted line) for different energies. The blue dot indicates the common impact if the crystal is shifted to a position according to the blue line (optimized position of the crystal surface). One can see that the beam walk is shorter in the optimized case. Owing to the fan-like construction the crystal surfaces (optimized and non-optimized) are not exactly parallel. |