Astronomy and Astrophysics – Astronomy
Scientific paper
Mar 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992pasp..104..191g&link_type=abstract
Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 104, March 1992, p. 191-203.
Astronomy and Astrophysics
Astronomy
18
Astronomical Photography, Infrared Detectors, Infrared Imagery, Arrays, Infrared Photography, Infrared Telescopes
Scientific paper
A new infrared array camera system using a Hughes/SBRC 58 x 62 pixel hybrid Si:Ga array detector has been successfully applied to high-background 5-18-micron astronomical imaging observations. The off-axis reflective optical system minimizes thermal background loading and produces diffraction-limited images with negligible spatial distortion. The noise equivalent flux density (NEFD) of the camera at 10 microns on the 3.0-m NASA/Infrared Telescope Facility with broadband interference filters and 0.26 arcsec pixel is NEFD = 0.01 Jy/sq rt min per pixel (1sigma), and it operates at a frame rate of 30 Hz with no compromise in observational efficiency. The electronic and optical design of the camera, its photometric characteristics, examples of observational results, and techniques for successful array imaging in a high- background astronomical application are discussed.
Folz Walter C.
Gezari Daniel Ysa
Varosi Frank
Woods Lawrence A.
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