Figure 1
Dimensions of the ellipsoid (dashed curve), defined by its semi-major and -minor half axes, a and b, respectively. The hatched region represents the mirror section in use, characterized by entrance separation , length L and focal distance , with and as the inner and outer aperture of the mirror, respectively. symbolize the source and focus diameter (FWHM). Marginal rays are drawn in red. The notation refers to Table 1, and the graphic (not to scale) is adopted from https://www.rigaku.com. |