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24 July 2014 Measuring the performance of adjustable x-ray optics with wavefront sensing
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Post-mounting figure correction is a promising avenue to produce low-mass, high-resolution X-ray telescopes. We have demonstrated the feasibility of this approach using piezoelectrically adjustable glass mirrors. Influence functions for various piezoelectric cells have previously been measured with an optical profilometer, but with significant noise. We have improved on both the speed and accuracy of these measurements using a Shack- Hartmann wavefront sensing system. Additionally, we have altered our wavefront sensing system to investigate the mid frequency roughness of our slumped glass mirrors. We report on initial results for measurements of both influence functions and mid frequency roughness and describe our path forward.
© (2014) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Ryan Allured, Vincenzo Cotroneo, Raegan Johnson-Wilke, Vanessa Marquez, Stuart McMuldroch, Paul B. Reid, Daniel A. Schwartz, Susan Trolier-McKinstry, Alexey Vikhlinin, and Rudeger H.T. Wilke "Measuring the performance of adjustable x-ray optics with wavefront sensing", Proc. SPIE 9144, Space Telescopes and Instrumentation 2014: Ultraviolet to Gamma Ray, 91441D (24 July 2014);

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