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Proceedings Paper

Low-cost solar adaptive optics in the infrared
Author(s): Christoph U. Keller; Claude Plymate; S. Mark Ammons
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Paper Abstract

We have developed a low-cost adaptive optics system for solar observations in the infrared between 1 and 28 μm with the 1.5-m McMath-Pierce solar telescope. The 37-actuator membrane mirror and a fast tip-tilt mirror are controlled by a PC running Linux RedHat 7.1 that analyzes images from a 256 by 256 pixel, 1 kHz frame rate CCD camera. The total hardware cost is less than $25,000, and the system provides diffraction-limited performance under median seeing conditions above 2.3 μm. The single Pentium III processor provides enough computing power to analyze the 200 subapertures of the Shack-Hartmann wavefront sensor in real time. We describe the hardware and software implementations and show results from the first tests at the telescope.

Paper Details

Date Published: 11 February 2003
PDF: 9 pages
Proc. SPIE 4853, Innovative Telescopes and Instrumentation for Solar Astrophysics, (11 February 2003); doi: 10.1117/12.460370
Show Author Affiliations
Christoph U. Keller, National Solar Observatory (United States)
Claude Plymate, National Solar Observatory (United States)
S. Mark Ammons, National Solar Observatory (United States)


Published in SPIE Proceedings Vol. 4853:
Innovative Telescopes and Instrumentation for Solar Astrophysics
Stephen L. Keil; Sergey V. Avakyan, Editor(s)

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