Astronomy and Astrophysics – Astronomy
Scientific paper
Jun 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992pasp..104..441h&link_type=abstract
Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 104, no. 676, June 1992, p. 441-451.
Astronomy and Astrophysics
Astronomy
67
Image Processing, Infrared Detectors, Infrared Imagery, Infrared Telescopes, Near Infrared Radiation, Astronomical Spectroscopy, Control Systems Design, Data Reduction, Infrared Photometry, Noise Reduction, Quantum Efficiency
Scientific paper
The University of Hawaii Near-Infrared Camera is equipped with a NICMOS-3 HgCdTe detector array sensitive from about 1 to 2.5 microns and produced by the Rockwell International Science Center for the Near-Infrared Camera and Multi-Object Spectrometer Project (NICMOS). In the camera, the NICMOS-3 array operates with 53 electrons readnoise in a double-correlated sampling mode. A dark current below 1 electron per second at an operating temperature of 60 K has been achieved. The device works linearly within 1 percent up to 250,000 electrons at 1.0 bias. Techniques for further reduction of readnoise and dark current are discussed. The only significant remaining problem is a residual excess dark current, remaining from previous exposure of the device.
Hodapp Klaus-Werner
Irwin Everett
Rayner John
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