All grazing incidence interferometer for testing and in situ alignment of imaging X-ray optics

Details All grazing incidence interferometer for testing and in situ alignment of imaging X-ray optics All grazing incidence interferometer for testing and in situ alignment of imaging X-ray optics

Jan 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979spie..184..172s&link_type=abstract

In: Space optics: Imaging X-ray optics workshop; Proceedings of the Seminar, Huntsville, Ala., May 22-24, 1979. (A80-17469 05-89

Physics

Optics

Grazing Incidence, Interferometers, X Ray Imagery, Diffraction Patterns, Grazing Incidence Telescopes, Sensitivity

Scientific paper

An interferometer is described which allows in situ assessment and alignment of any image forming grazing incidence optic. The fringes are localized in the exit pupil of the X-ray telescope or microscope (either under manufacture or during use) and mark out in units of one wavelength the departure of an actual convergent image forming wavefront from the Gaussian reference sphere. In one variation of the principle the interferometer is comprised of one grazing incidence reflecting surface only. Visible interferograms are shown for two current applications.

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