Roughness scattering in X-ray grazing-incidence telescopes

  title={Roughness scattering in X-ray grazing-incidence telescopes},
  author={F. Zocchi},
  journal={Astronomy and Astrophysics},
  • F. Zocchi
  • Published 2009
  • Physics
  • Astronomy and Astrophysics
In the framework of the scalar theory of diffraction, we determine the rms width of the angle spread function degraded by surface roughness in reflective grazing-incidence optics of cylindrical symmetry for X-ray astronomy. Our derivation does not rely on the small roughness approximation, is thus valid for arbitrary roughness values, and takes into full consideration the cylindrical symmetry of the mirrors. The dependence of the rms beam width on both the grazing-incidence angles and the… Expand

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