Development status of adjustable grazing incidence optics for 0.5 arc second x-ray imaging

Paul B. Reid; Thomas L. Aldcroft; Vincenzo Cotroneo; William Davis; Raegan L. Johnson-Wilke; Stuart McMuldroch; Brian D. Ramsey; Daniel A. Schwartz; Susan Trolier-McKinstry; Alexey Vikhlinin; Rudeger H. T. Wilke

doi:10.1117/12.2026429

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26 September 2013 Development status of adjustable grazing incidence optics for 0.5 arc second x-ray imaging

Paul B. Reid, Thomas L. Aldcroft, Vincenzo Cotroneo, William Davis, Raegan L. Johnson-Wilke, Stuart McMuldroch, Brian D. Ramsey, Daniel A. Schwartz, Susan Trolier-McKinstry, Alexey Vikhlinin, Rudeger H. T. Wilke

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Proceedings Volume 8861, Optics for EUV, X-Ray, and Gamma-Ray Astronomy VI; 88611Q (2013) https://doi.org/10.1117/12.2026429
Event: SPIE Optical Engineering + Applications, 2013, San Diego, California, United States

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 in operating multiple adjusters, and extending the process from flat test mirrors to cylindrical and conical test mirror segments. A comparison of modeled and measured influence functions is shown. We also present simulation results showing the process is consistent with the achievement of half arcsec imaging.

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Paul B. Reid, Thomas L. Aldcroft, Vincenzo Cotroneo, William Davis, Raegan L. Johnson-Wilke, Stuart McMuldroch, Brian D. Ramsey, Daniel A. Schwartz, Susan Trolier-McKinstry, Alexey Vikhlinin, and Rudeger H. T. Wilke "Development status of adjustable grazing incidence optics for 0.5 arc second x-ray imaging", Proc. SPIE 8861, Optics for EUV, X-Ray, and Gamma-Ray Astronomy VI, 88611Q (26 September 2013); https://doi.org/10.1117/12.2026429

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