University of California/San Diego's mid-IR astronomical array camera

Details University of California/San Diego's mid-IR astronomical array camera University of California/San Diego's mid-IR astronomical array camera

Oct 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993spie.1946..640p&link_type=abstract

Proc. SPIE Vol. 1946, p. 640-654, Infrared Detectors and Instrumentation, Albert M. Fowler; Ed.

Astronomy and Astrophysics

Astronomy

1

Scientific paper

We have implemented an infrared array camera for high-background, ground-based astronomical imaging in the mid-infrared spectral region from 5 to 27 microns. The camera is built around a 20 X 64 element Si:As Impurity Band Conduction (IBC) device manufactured by GenCorp Aerojet Electronic Systems Division. Observations with the camera on a 1.5 meter telescope (Mt. Lemmon Observing Facility, Tucson, Arizona) yield a noise- equivalent flux density (NEFD) of 23.5 mJy min(superscript -1/2) arcsec(superscript -2) at (lambda) equals 10 micrometers , (Delta) (lambda) equals 1 micrometers , and a readout frame rate of 366 Hz. We discuss the design and implementation of the camera and operational procedures for observation in a high-background environment (e.g. background subtraction and flat-fielding). We also present sample images obtained with our camera.

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