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Proceedings Paper

Fabrication of a demonstration mandrel for ESA's XEUS mirror development program
Author(s): Juergen Altmann; Wilhelm J. Egle; Wolfgang Hafner; Gerhard Derst; Axel Matthes; Thorsten Doehring
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Paper Abstract

ESA's XEUS x-ray telescope design asks for segmented Wolter 1 mirror plates with radii up to 5 m and a focal length of 50 m. The mirror plates shall have an excellent optical performance (< 5 arcsec HEW). They shall be made by metal (e.g. Nickel) electroforming. This design approach requires highest quality segmented Wolter 1 mandrel plates, with an on-axis HEW < 2 arcsec and a micro-roughness better than 0.3 nm (rms). We will report about the novel design concept, fabrication approach and verification of the x-ray optical performance of the first XEUS demonstration mandrel.

Paper Details

Date Published: 18 July 2000
PDF: 8 pages
Proc. SPIE 4012, X-Ray Optics, Instruments, and Missions III, (18 July 2000); doi: 10.1117/12.391593
Show Author Affiliations
Juergen Altmann, Zeiss Optronik GmbH (Germany)
Wilhelm J. Egle, Zeiss Optronik GmbH (Germany)
Wolfgang Hafner, Zeiss Optronik GmbH (Germany)
Gerhard Derst, Carl Zeiss (Germany)
Axel Matthes, Carl Zeiss (Germany)
Thorsten Doehring, Schott-Glas (Germany)

Published in SPIE Proceedings Vol. 4012:
X-Ray Optics, Instruments, and Missions III
Joachim E. Truemper; Bernd Aschenbach, Editor(s)

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