Development of imaging X-ray telescopes at Max-Planck-Institut Garching

Details Development of imaging X-ray telescopes at Max-Planck-Institut Garching Development of imaging X-ray telescopes at Max-Planck-Institut Garching

Jan 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979spie..184...12t&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

Astronomy and Astrophysics

Astronomy

3

Gold Coatings, Spaceborne Telescopes, Surface Finishing, X Ray Telescopes, Metal Coatings, Mirrors, Reflectance, Surface Properties, X Ray Astronomy

Scientific paper

The paper presents design and fabrication of imaging X-ray telescopes. First paraboloidal mirrors were built with a 15 cm frontal diameter and 1 m length which were flown on Aries rockets. Three telescopes for use on a Skylark or Black Brant rocket made of aluminum plated with Kanigen and coated with a reflecting gold layer were tested, showing nominal reflectivity, on-axis angular resolution of 5 arc sec, and very low surface scattering of 6% at 1 keV. Currently, a nested 80 cm Wolter type I telescope of 240 cm focal length is being designed, which will be made from a glass ceramic with good thermal properties, low residual stresses compared with aluminum, and the ability to be polished to a high surface finish.

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