Physics – Optics
Scientific paper
Apr 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988apopt..27.1544k&link_type=abstract
(SPIE, Conference on Grazing Incidence Optics for Astronomical and Laboratory Applications, San Diego, CA, Aug. 17-19, 1987) App
Physics
Optics
2
Light Beams, Mirrors, Optical Properties, X Ray Telescopes, Broadband, Imaging Techniques, Instrument Errors, Laser Outputs
Scientific paper
The imaging capability of a thin foil X-ray mirror has been examined with optical light, using a laser beam and a wide optical parallel beam. These measurements reveal that: (1) image broadening due to millimeter scale waviness (orange peel) of the aluminum substrate, partly intrinsic to the foil and partly caused during the foil treatment, is 1.2-min of arc half-power diameter (HPD) in two reflections; (2) slope errors due to foil shaping and misalignment cause broadening of 1.6-2.0-min of arc HPD; and (3) total broadening is about 3-min of arc HPD, which is consistent with the broadening of 2.6-min of arc HPD measured with X rays.
Kunieda Hideyo
Serlemitsos Peter J.
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