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Proceedings Paper

Deployable ultrahigh-throughput x-ray telescope: concept
Author(s): Paul Gorenstein
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Paper Abstract

We describe a method of building and deploying an ultra high throughput x-ray observatory with 2 by 105 cm2 of effective area for the era following the Constellation X-ray Mission and XEUS. It is based upon a single focus telescope. Replacing and adding detectors are possible. Instead of an optical bench, the detector uses electric propulsion with plasma thrusters and ion engines to maintain its station at the focus and repositioning itself for new targets. The preferred site is the L2 point; a high circular orbit is also possible. Additional or replacement detectors equipped with ion/plasma engines are launched on much smaller rockets and rendez-vous with the telescope. We describe how such a telescope with an angular resolution of a few arcseconds could be fabricated. As an example, we consider a 7 m X 7 m aperture, 100 m focal length standard Kirkpatrick-Baez optic. It is segmented into several hundred modules of identical size. A co-aligned group of segments is equipped with a fiducial and a positioning system for alignment to a common focus in space. With subdivided reflector substrates made from light weight advanced composite materials the launch mass of the telescope spacecraft is within the capability of current vehicles.

Paper Details

Date Published: 19 November 1998
PDF: 11 pages
Proc. SPIE 3444, X-Ray Optics, Instruments, and Missions, (19 November 1998); doi: 10.1117/12.331253
Show Author Affiliations
Paul Gorenstein, Harvard-Smithsonian Ctr. for Astrophysics (United States)


Published in SPIE Proceedings Vol. 3444:
X-Ray Optics, Instruments, and Missions
Richard B. Hoover; Arthur B. C. Walker, Editor(s)

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