Air bearing glass slumping followed by ion implantation for fine figure correction constitutes a promising process for fabricating thin glass segmented mirrors for future high-resolution x-ray telescopes. We have previously demonstrated the feasibility of both air bearing slumping and ion implantation figure correction to produce mirrors with good figure and without introducing mid spatial-frequency errors or roughness. In this work, we describe a mechanically-robust slumping tool design that can be adapted to Wolter I mirror shapes; and we describe progress on understanding ion implantation for use as a figure correction process, by using in-situ curvature measurements in a tandem ion accelerator.
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Brandon Chalifoux ; Ralf K. Heilmann and Mark L. Schattenburg
Shaping of thin glass X-ray telescope mirrors using air bearing slumping and ion implantation
", Proc. SPIE 9144, Space Telescopes and Instrumentation 2014: Ultraviolet to Gamma Ray, 91444D (July 24, 2014); doi:10.1117/12.2056512; http://dx.doi.org/10.1117/12.2056512