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

Marcos Bavdaz; Marco W. Beijersbergen; Anthony J. Peacock; Richard Willingale; Bernd Aschenbach; Heinrich W. Braeuninger

doi:10.1117/12.363665

29 September 1999 X-ray evolving universe spectroscopy mission (XEUS): x-ray mirror design and technology

Marcos Bavdaz, Marco W. Beijersbergen, Anthony J. Peacock, Richard Willingale, Bernd Aschenbach, Heinrich W. Braeuninger

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Proceedings Volume 3766, X-Ray Optics, Instruments, and Missions II; (1999) https://doi.org/10.1117/12.363665
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1999, Denver, CO, United States

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.

Citation Download Citation

Marcos Bavdaz, Marco W. Beijersbergen, Anthony J. Peacock, Richard Willingale, Bernd Aschenbach, and Heinrich W. Braeuninger "X-ray evolving universe spectroscopy mission (XEUS): x-ray mirror design and technology", Proc. SPIE 3766, X-Ray Optics, Instruments, and Missions II, (29 September 1999); https://doi.org/10.1117/12.363665

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