13 June 2006 Manufacturing of Wolter-I mirror segments with slumped glass
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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.
© (2006) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Peter Friedrich, Peter Friedrich, Bernd Aschenbach, Bernd Aschenbach, Christoph Braig, Christoph Braig, Heinrich Bräuninger, Heinrich Bräuninger, Bernd Budau, Bernd Budau, Wolfgang Burkert, Wolfgang Burkert, Michael J Freyberg, Michael J Freyberg, Gisela Hartner, Gisela Hartner, Günther Hasinger, Günther Hasinger, Peter Predehl, Peter Predehl, Monika Vongehr, Monika Vongehr, Stefano Basso, Stefano Basso, Oberto Citterio, Oberto Citterio, Mauro Ghigo, Mauro Ghigo, Francesco Mazzoleni, Francesco Mazzoleni, Giovanni Pareschi, Giovanni Pareschi, Udo Dinger, Udo Dinger, Wilhelm Egle, Wilhelm Egle, Ralf Lenke, Ralf Lenke, Georg Luichtel, Georg Luichtel, Herbert Schwarz, Herbert Schwarz, } "Manufacturing of Wolter-I mirror segments with slumped glass", Proc. SPIE 6266, Space Telescopes and Instrumentation II: Ultraviolet to Gamma Ray, 62661G (13 June 2006); doi: 10.1117/12.671802; https://doi.org/10.1117/12.671802


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