Paper
3 October 2014 Development status of adjustable grazing incidence optics for 0.5 arcsecond x-ray imaging
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Abstract
We describe progress in the development of adjustable grazing incidence X-ray optics for 0.5 arcsec resolution cosmic X-ray imaging. To date, no optics technology is available to blend high resolution imaging like the Chandra X-ray Observatory, with square meter collecting area. Our approach to achieve these goals simultaneously is to directly deposit thin film piezoelectric actuators on the back surface of thin, lightweight Wolter-I or Wolter- Schwarschild mirror segments. The actuators are used to correct mirror figure errors due to fabrication, mounting and alignment, using calibration and a one-time figure adjustment on the ground. If necessary, it will also be possible to correct for residual gravity release and thermal effects on-orbit. In this paper we discuss our most recent results measuring influence functions of the piezoelectric actuators using a Shack-Hartmann wavefront sensor. We describe accelerated and real-time lifetime testing of the piezoelectric material, and we also discuss changes to, and recent results of, our simulations of mirror correction.
© (2014) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Paul B. Reid, Thomas L. Aldcroft, Ryan Allured, Vincenzo Cotroneo, Raegan L. Johnson-Wilke, Vanessa Marquez, Stuart McMuldroch, Stephen L. O'Dell, Brian D. Ramsey, Daniel A. Schwartz, Susan E. Trolier-McKinstry, Alexey A. Vikhlinin, Rudeger H. T. Wilke, and Rui Zhao "Development status of adjustable grazing incidence optics for 0.5 arcsecond x-ray imaging", Proc. SPIE 9208, Adaptive X-Ray Optics III, 920807 (3 October 2014); https://doi.org/10.1117/12.2063305
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Cited by 12 scholarly publications.
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KEYWORDS
Mirrors

X-ray optics

Wavefront sensors

Ferroelectric materials

Actuators

X-rays

X-ray imaging

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