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Proceedings Paper

Manufacturing of Wolter-I mirror segments with slumped glass
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Paper Abstract

In our ongoing studies of high precision glass slumping we have successfully formed the first Wolter-I X-ray mirror segments with parabola and hyperbola in one piece. It could be demonstrated that the excellent surface roughness of the 0.55 mm thick display glass chosen is conserved during the slumping process. The influence of several parameters of the process, such as maximum temperature, heating and cooling rates etc. have to be measured and controlled with adequate metrology. Currently, we are optimizing the process to reduce the figure errors down to 1 micrometer what will be the starting point for further, final figure error corrections. We point out that metrology plays an important role in achieving a high precision optics, i.e. an angular resolution of a few arcsec. In this paper we report on the results of our studies and discuss them in the context of the requirements for future X-ray telescopes with large apertures.

Paper Details

Date Published: 13 June 2006
PDF: 8 pages
Proc. SPIE 6266, Space Telescopes and Instrumentation II: Ultraviolet to Gamma Ray, 62661G (13 June 2006); doi: 10.1117/12.671802
Show Author Affiliations
Peter Friedrich, Max-Planck-Institut für extraterrestrische Physik (Germany)
Bernd Aschenbach, Max-Planck-Institut für extraterrestrische Physik (Germany)
Christoph Braig, Max-Planck-Institut für extraterrestrische Physik (Germany)
Heinrich Bräuninger, Max-Planck-Institut für extraterrestrische Physik (Germany)
Bernd Budau, Max-Planck-Institut für extraterrestrische Physik (Germany)
Wolfgang Burkert, Max-Planck-Institut für extraterrestrische Physik (Germany)
Michael J Freyberg, Max-Planck-Institut für extraterrestrische Physik (Germany)
Gisela Hartner, Max-Planck-Institut für extraterrestrische Physik (Germany)
Günther Hasinger, Max-Planck-Institut für extraterrestrische Physik (Germany)
Peter Predehl, Max-Planck-Institut für extraterrestrische Physik (Germany)
Monika Vongehr, Max-Planck-Institut für extraterrestrische Physik (Germany)
Stefano Basso, Osservatorio Astronomico di Brera (Italy)
Oberto Citterio, Osservatorio Astronomico di Brera (Italy)
Mauro Ghigo, Osservatorio Astronomico di Brera (Italy)
Francesco Mazzoleni, Osservatorio Astronomico di Brera (Italy)
Giovanni Pareschi, Osservatorio Astronomico di Brera (Italy)
Udo Dinger, Carl Zeiss Group (Germany)
Wilhelm Egle, Carl Zeiss Group (Germany)
Ralf Lenke, Carl Zeiss Group (Germany)
Georg Luichtel, Carl Zeiss Group (Germany)
Herbert Schwarz, Carl Zeiss Group (Germany)


Published in SPIE Proceedings Vol. 6266:
Space Telescopes and Instrumentation II: Ultraviolet to Gamma Ray
Martin J. L. Turner; Günther Hasinger, Editor(s)

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