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19 November 1998 Deployable ultrahigh-throughput x-ray telescope: concept
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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.
© (1998) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Paul Gorenstein "Deployable ultrahigh-throughput x-ray telescope: concept", Proc. SPIE 3444, X-Ray Optics, Instruments, and Missions, (19 November 1998); doi: 10.1117/12.331253; https://doi.org/10.1117/12.331253
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