Multispectral variable magnification glancing incidence X ray telescope

Details Multispectral variable magnification glancing incidence X ray telescope Multispectral variable magnification glancing incidence X ray telescope

Sep 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992msfc.reptq....h&link_type=abstract

Patent National Aeronautics and Space Administration. Marshall Space Flight Center, Huntsville, AL.

Physics

Broadband, Ellipsoids, High Resolution, Imaging Techniques, Mirrors, Radiation Sources, X Ray Telescopes, Coatings, Extreme Ultraviolet Radiation, Magnification, Patents, Photographic Film, X Rays

Scientific paper

A multispectral, variable magnification, glancing incidence, x-ray telescope capable of broadband, high resolution imaging of solar and stellar x-ray and extreme ultraviolet radiation sources is discussed. The telescope includes a primary optical system which focuses the incoming radiation to a primary focus. Two or more rotatable mirror carriers, each providing a different magnification, are positioned behind the primary focus at an inclination to the optical axis. Each carrier has a series of ellipsoidal mirrors, and each mirror has a concave surface covered with a multilayer (layered synthetic microstructure) coating to reflect a different desired wavelength. The mirrors of both carriers are segments of ellipsoids having a common first focus coincident with the primary focus. A detector such as an x-ray sensitive photographic film is positioned at the second respective focus of each mirror so that each mirror may reflect the image at the first focus to the detector at the second focus. The carriers are selectively rotated to position a selected mirror for receiving radiation from the primary optical system, and at least the first carrier may be withdrawn from the path of the radiation to permit a selected mirror on the second carrier to receive the radiation.

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