
Figure 3
Raytracing results for focal beam images at 12.4 keV in the ideal case using the geometry of BL26B1 and BL26B2 (Fig. 1) with horizontal acceptance angle _{H} values of (a) 1.5 mrad and (b) 0.7 mrad. The vertical acceptance of the incident Xrays, _{V}, was set to 30 µrad in both cases. The light source is a 0.679 T bendingmagnet source with source electron beam sizes of _{x} = 106 µm and _{y} = 13 µm and emittances of _{x} = 3.4 × 10^{9} m rad and _{y} = 6.8 × 10^{12} m rad (Tanaka & Kitamura, 2001). The sagittal crystal radius of curvature R_{s} is 3.71 m. The glancing angle of the tangentialfocusing mirror _{m} is 3.6 mrad, and the radius of curvature R_{m} is 5.27 km. 