24 July 2014 Measuring the performance of adjustable x-ray optics with wavefront sensing
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Abstract
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.
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Ryan Allured, Ryan Allured, Vincenzo Cotroneo, Vincenzo Cotroneo, Raegan Johnson-Wilke, Raegan Johnson-Wilke, Vanessa Marquez, Vanessa Marquez, Stuart McMuldroch, Stuart McMuldroch, Paul B. Reid, Paul B. Reid, Daniel A. Schwartz, Daniel A. Schwartz, Susan Trolier-McKinstry, Susan Trolier-McKinstry, Alexey Vikhlinin, Alexey Vikhlinin, Rudeger H.T. Wilke, 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); doi: 10.1117/12.2054918; https://doi.org/10.1117/12.2054918
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