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Proceedings Paper

Addressing the problem of glass thickness variation in the indirect slumping technology
Author(s): Laura Proserpio; Christoph Wellnhofer; Elias Breunig; Peter Friedrich; Anita Winter
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Paper Abstract

The indirect hot slumping technology is being developed at Max-Planck-Institute for extraterrestrial Physics (MPE) for the manufacturing of lightweight astronomical X-ray telescopes. It consists of a thermal shaping process to replicate the figure of a suitable mould into segments of X-ray mirror shells made by glass. Several segments are aligned and mounted into elemental modules, a number of which is then assembled together to form the telescope. To obtain mirror segments of high optical quality, the realization of the slumping thermal cycle itself is of fundamental importance, but also the starting materials, primarily the mould and the glass foils, play a major role. This paper will review the MPE approach in the slumping technology development and will then concentrate on the glass, with particular regards to the problem of thickness variation.

Paper Details

Date Published: 4 September 2015
PDF: 10 pages
Proc. SPIE 9603, Optics for EUV, X-Ray, and Gamma-Ray Astronomy VII, 96030T (4 September 2015); doi: 10.1117/12.2188026
Show Author Affiliations
Laura Proserpio, Max-Planck-Institut für extraterrestrische Physik (Germany)
Christoph Wellnhofer, Max-Planck Institut fur extraterrestrische Physik (Germany)
Institut für Werkstoffwissenschaft und Werkstoffmechanik (Germany)
Elias Breunig, Max-Planck-Institut für extraterrestrische Physik (Germany)
Peter Friedrich, Max-Planck-Institut für extraterrestrische Physik (Germany)
Anita Winter, Max-Planck-Institut für extraterrestrische Physik (Germany)

Published in SPIE Proceedings Vol. 9603:
Optics for EUV, X-Ray, and Gamma-Ray Astronomy VII
Stephen L. O'Dell; Giovanni Pareschi, Editor(s)

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