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Proceedings Paper

Measuring the performance of adjustable x-ray optics with wavefront sensing
Author(s): Ryan Allured; Vincenzo Cotroneo; Raegan Johnson-Wilke; Vanessa Marquez; Stuart McMuldroch; Paul B. Reid; Daniel A. Schwartz; Susan Trolier-McKinstry; Alexey Vikhlinin; Rudeger H.T. Wilke
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Paper 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.

Paper Details

Date Published: 24 July 2014
PDF: 8 pages
Proc. SPIE 9144, Space Telescopes and Instrumentation 2014: Ultraviolet to Gamma Ray, 91441D (24 July 2014); doi: 10.1117/12.2054918
Show Author Affiliations
Ryan Allured, Harvard-Smithsonian Ctr. for Astrophysics (United States)
Vincenzo Cotroneo, Harvard-Smithsonian Ctr. for Astrophysics (United States)
Raegan Johnson-Wilke, The Pennsylvania State Univ. (United States)
Vanessa Marquez, Harvard-Smithsonian Ctr. for Astrophysics (United States)
Stuart McMuldroch, Harvard-Smithsonian Ctr. for Astrophysics (United States)
Paul B. Reid, Harvard-Smithsonian Ctr. for Astrophysics (United States)
Daniel A. Schwartz, Harvard-Smithsonian Ctr. for Astrophysics (United States)
Susan Trolier-McKinstry, The Pennsylvania State Univ. (United States)
Alexey Vikhlinin, Harvard-Smithsonian Ctr. for Astrophysics (United States)
Rudeger H.T. Wilke, The Pennsylvania State Univ. (United States)


Published in SPIE Proceedings Vol. 9144:
Space Telescopes and Instrumentation 2014: Ultraviolet to Gamma Ray
Tadayuki Takahashi; Jan-Willem A. den Herder; Mark Bautz, Editor(s)

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