Variable magnification glancing incidence X ray telescope

Details Variable magnification glancing incidence X ray telescope Variable magnification glancing incidence X ray telescope

Jun 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990pata.repts....h&link_type=abstract

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

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Applications

Extreme Ultraviolet Radiation, Field Of View, Imaging Techniques, Magnification, Microstructure, Photographic Film, Position (Location), Radiation Sources, X Ray Telescopes, X Rays, Broadband, Coatings, High Resolution, Mirrors, Patent Applications, Solenoids

Scientific paper

A multispectral glancing incidence x ray telescope is disclosed, which capable of broadband, high resolution imaging of solar and stellar x ray and extreme ultraviolet radiation sources includes a primary optical system which focuses the incoming radiation to a primary focus. Two or more ellipsoidal mirrors are positioned behind the primary focus at an inclination to the optical axis, each mirror having a concave surface coated with a multilayer synthetic microstructure coating to reflect a desired wavelength. The ellipsoidal mirrors are segments of respective 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 focus of each of the ellipsoids so that each of the ellipsoidal mirrors may reflect the image at the first focus to the detector. In one embodiment the mirrors are inclined at different angles and has its respective second focus at a different location, separate detectors being located at the respective second focus. The mirrors are arranged so that the magnification and field of view differ, and a solenoid activated arm may withdraw at least one mirror from the beam to select the mirror upon which the beam is to impinge so that selected magnifications and fields of view may be detected.

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