A VERSATILE CCD WAVE-FRONT CURVATURE SENSOR

Citation
Gs. Burley et al., A VERSATILE CCD WAVE-FRONT CURVATURE SENSOR, Publications of the Astronomical Society of the Pacific, 110(745), 1998, pp. 330-338
Citations number
13
Categorie Soggetti
Astronomy & Astrophysics
Journal title
Publications of the Astronomical Society of the Pacific
ISSN journal
00046280 → ACNP
Volume
110
Issue
745
Year of publication
1998
Pages
330 - 338
Database
ISI
SICI code
0004-6280(1998)110:745<330:AVCWCS>2.0.ZU;2-J
Abstract
Small-format CCD detectors are well suited to wave front sensing appli cations. The prototype wave front sensor described here is based on a low-noise frame transfer 64 x 64 device with a DSP56002-based controll er. The subaperture patterns necessary for curvature sensing are forme d by extensive serial register binning. The reduced number of pixels a llows rapid frame rates with low readout noise. The CCD is thermoelect rically cooled to minimize dark current. Versatility is achieved by ha ving the serial binning pattern and the number of subapertures under s oftware control.