A High-Sensitivity Quadrant Detector for Image-Stabilization Applications

Details A High-Sensitivity Quadrant Detector for Image-Stabilization Applications A High-Sensitivity Quadrant Detector for Image-Stabilization Applications

Oct 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997pasp..109.1165s&link_type=abstract

Publications of the Astronomical Society of the Pacific, v.109, p.1165-1166

Astronomy and Astrophysics

Astronomy

1

Instrumentation: Cameras

Scientific paper

A description is given of the design and performance of a quadrant detector offering improvements in sensitivity and ease of construction over earlier devices. The optics are compact, and low-noise high-sensitivity operation is achieved with the use of avalanche photodiode detectors. The device is installed on the SIS spectrograph on the CFH 3.6-m telescope and allows image stabilization to be achieved by a tip-tilt mirror system using guide stars as faint as magnitude 18.5.

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