Fig. 9
PSF of a perfect Wolter-I mirror with the same geometry as in Fig. 7 as computed with the WISE code. a) In UV light at 3000 Å, in single and double reflection: the aperture diffraction is apparent and enhanced in double reflection. b) At 30 Å, the aperture diffraction is minimized and the PSF becomes a Dirac delta, also in double reflection.
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