Light-weight glass mirror systems for future x-ray telescopes

Anita Winter; Elias Breunig; Vadim Burwitz; Peter Friedrich; Gisela Hartner; Benedikt Menz; Laura Proserpio

doi:10.1117/12.2026679

26 September 2013 Light-weight glass mirror systems for future x-ray telescopes

Anita Winter, Elias Breunig, Vadim Burwitz, Peter Friedrich, Gisela Hartner, Benedikt Menz, Laura Proserpio

Proceedings Volume 8861, Optics for EUV, X-Ray, and Gamma-Ray Astronomy VI; 88610Q (2013) https://doi.org/10.1117/12.2026679
Event: SPIE Optical Engineering + Applications, 2013, San Diego, California, United States

Abstract

Future X-ray telescopes need to combine large collecting area with good angular resolution. In order to achieve these aims within the mass limit, light-weight materials are needed for mirror production. We are developing a technology based on indirect hot slumping of thin glass segments; this method enables the production of the parabolic and hyperbolic part of the Wolter type I mirrors in one piece. Currently we use a combination of a porous ceramic for the slumping mould and the glass type D263 for the mirror material. In this study we use glasses that have been polished on one side to remove thickness variations in the glass, in order to investigate their influence on the results. We describe the experimental set-up, the slumping process and the metrology methods. Finally we present the results of an X-ray test of several integrated glass sheets, and give an outlook on future activities.

Citation Download Citation

Anita Winter, Elias Breunig, Vadim Burwitz, Peter Friedrich, Gisela Hartner, Benedikt Menz, and Laura Proserpio "Light-weight glass mirror systems for future x-ray telescopes", Proc. SPIE 8861, Optics for EUV, X-Ray, and Gamma-Ray Astronomy VI, 88610Q (26 September 2013); https://doi.org/10.1117/12.2026679

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