Development Status of Adjustable Grazing Incidence Optics for 0.5 Arcsecond X-Ray Imaging
- Marquez, Vanessa
- August 17, 2014.
- Physical Description:
- 1 electronic document
- Additional Creators:
- Trolier-McKinstry, Susan, 1965-
Johnson-Wilke, Raegan L.
Reid, Paul B.
Wilke, Rudeger H. T.
Ramsey, Brian D.
Schwartz, Daniel A.
O'Dell, Stephen L.
Aldcroft, Thomas L.
- Restrictions on Access:
- Unclassified, Unlimited, Publicly available.
- 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.
- NASA Technical Reports Server (NTRS) Collection.
- Document ID: 20140016821.
SPIE Optics+Photonics 2014; 17-21 Aug. 2014; San Diego, CA; United States.
Adaptive X-Ray Optics III; 17-21 Aug. 2014; San Diego, CA; United States.
- Copyright, Distribution as joint owner in the copyright.
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