29 August 2017 Kinematic alignment and bonding of silicon mirrors for high-resolution astronomical x-ray optics
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Abstract
Optics for the next generation’s high-resolution, high throughput x-ray telescope requires fabrication of wellformed lightweight mirror segments and their integration at arc-second precision. Recent advances in the fabrication of silicon mirrors developed at NASA/Goddard prompted us to develop a new method of mirror alignment and integration. In this method, stiff silicon mirrors are aligned quasi-kinematically and are bonded in an interlocking fashion to produce a “meta-shell” with large collective area. We address issues of aligning and bonding mirrors with this method and show a recent result of 4 seconds-of-arc (half power diameter) for a single pair of mirrors tested at soft x-rays.
Conference Presentation
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Kai-Wing Chan, James R. Mazzarella, Timo T. Saha, William W. Zhang, Ryan S. McClelland, Michael P. Biskach, Raul E. Riveros, Kim D. Allgood, John D. Kearney, Marton V. Sharpe, Michal Hlinka, Ai Numata, "Kinematic alignment and bonding of silicon mirrors for high-resolution astronomical x-ray optics", Proc. SPIE 10399, Optics for EUV, X-Ray, and Gamma-Ray Astronomy VIII, 103990U (29 August 2017); doi: 10.1117/12.2271464; https://doi.org/10.1117/12.2271464
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