ARNICA: the Arcetri Observatory NICMOS3 imaging camera

Details ARNICA: the Arcetri Observatory NICMOS3 imaging camera ARNICA: the Arcetri Observatory NICMOS3 imaging camera

Oct 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993spie.1946..594l&link_type=abstract

Proc. SPIE Vol. 1946, p. 594-600, Infrared Detectors and Instrumentation, Albert M. Fowler; Ed.

Physics

Optics

15

Scientific paper

ARNICA (ARcetri Near Infrared CAmera) is the imaging camera for the near infrared bands between 1.0 and 2.5 micrometers that Arcetri Observatory has designed and built as a general facility for the TIRGO telescope (1.5 m diameter, f/20) located at Gornergrat (Switzerland). The scale is 1' per pixel, with sky coverage of more than 4' X 4' on the NICMOS 3 (256 X 256 pixels, 40 micrometers side) detector array. The optical path is compact enough to be enclosed in a 25.4 cm diameter dewar; the working temperature is 76 K. The camera is remotely controlled by a 486 PC, connected to the array control electronics via a fiber-optics link. A C-language package, running under MS-DOS on the 486 PC, acquires and stores the frames, and controls the timing of the array. We give an estimate of performance, in terms of sensitivity with an assigned observing time, along with some details on the main parameters of the NICMOS 3 detector.

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