Results of the WISE code for a Wolter-I mirror with the same characteristics as in Fig. 7, at λ = 6 Å, but rough profiles (semi-log scale). Roughness profiles generated from a power-law PSD (Eq. (52)) with n = 1.5, K_n = 150 nm³μm^-1.5 were superposed on the parabolic and hyperbolic segment. We also traced for | θ | > 1 arcsec the X-ray scattering diagram computed from the PSD via the first-order scattering theory. The agreement is excellent.