Development of a low-noise high-frame-rate CCD for adaptive optics

Details Development of a low-noise high-frame-rate CCD for adaptive optics Development of a low-noise high-frame-rate CCD for adaptive optics

May 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994spie.2201..596l&link_type=abstract

Proc. SPIE Vol. 2201, p. 596-606, Adaptive Optics in Astronomy, Mark A. Ealey; Fritz Merkle; Eds.

Physics

Optics

1

Scientific paper

The Adaptive Optics CCD (ACCD) is a 32 by 64 frame transfer device offering low noise performance at high frame rates using skipper amplifier technology to achieve low noise performance. An array of 32 parallel readouts provides for fast framing at 1.5 KHz with a design goal of 1.5 electrons (rms) noise. Potential applications for the ACCD are in wavefront sensing, tip/tilt sensing, and fast tracking. Eleven devices has been successfully packed and tested. An 8 electron rms noise floor has been measured using a single read from the skipper amplifier. Multiple reads are expected to diminish the noise to 2.5 electrons rms. Design goals are expected to be reached by changing the spacing between output amplifiers, using the newly tested low noise CUBIC amplifier, and through thinning and backside illumination.

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