Figure 129

Fig. 129: Peak-to-valley thermal slope error from FEA (ANSYS) and (111)-rocking curve widths for 20 keV. Results from purely geometrical ray tracing (Geom); from Takagi-Taupin theory assuming coherent and incoherent beams, respectively (TTcoh and TTincoh), and from experiments (Exp), all FWHM, as a function of horizontal slit size and thus total power.