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Proceedings Paper

X-ray evolving universe spectroscopy mission (XEUS): x-ray mirror design and technology
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Paper Abstract

To achieve the demanding aims of XEUS, which involve the detection of sources as faint as 10-18 ergs cm-2s-1 a large x-ray mirror will need to be developed. This core scientific aim implies that the XEUS mirror needs to have an effective collection area at 1 keV of 30 m2 coupled to a spatial resolution on-axis of between 2 and 5 arcsec, so as to avoid source confusion at these very faint flux levels. Finally a field of view of at least 5 arcmin must be covered so as to ensure that a significantly large population of high redshift x-ray sources can be observed in a single pointing over the energy band from 0.05-30 keV. Clearly the key characteristics of XEUS is the large x-ray mirror aperture coupled to the high spatial resolution. The XEUS mirror aperture of 10 m diameter is divided into annuli with each annulus subdivided into sectors. The basic mirror unit therefore consist of a set of heavily stacked thin mirror plates each retaining the correct geometry. This unit is known as a mirror petal and constitutes a complete free-standing calibrated part of the overall XEUS mirror.

Paper Details

Date Published: 29 September 1999
PDF: 9 pages
Proc. SPIE 3766, X-Ray Optics, Instruments, and Missions II, (29 September 1999); doi: 10.1117/12.363665
Show Author Affiliations
Marcos Bavdaz, European Space Agency/ESTEC (Netherlands)
Marco W. Beijersbergen, European Space Agency/ESTEC (Netherlands)
Anthony J. Peacock, European Space Agency/ESTEC (Netherlands)
Richard Willingale, Univ. of Leicester (United Kingdom)
Bernd Aschenbach, Max-Planck-Institut fuer Extraterrestrische Physik (Germany)
Heinrich W. Braeuninger, Max-Planck-Institut fuer Extraterrestrische Physik (Germany)

Published in SPIE Proceedings Vol. 3766:
X-Ray Optics, Instruments, and Missions II
Richard B. Hoover; Arthur B. C. Walker, Editor(s)

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