Figure 6
(a) Comparison of the experimentally obtained focus size for a contoured crystal (filled squares) and for a rectangular crystal (filled circles) at different photon energies. For comparison, the calculated figure of merit (dotted line, see text for definition) is also shown for the contoured (hollow squares) and rectangular crystal (hollow circles). The lines are just a guide for the eyes. (b) Comparison of the calculated and measured focus sizes at different energies for a profiled (squares) and for a rectangular (circles) crystal. The filled squares and circles hold for the measured focus and the hollow squares and circles hold for the calculated focus. The lines are just a guide for the eyes. |