CFHTIR: 1Kx1K NIR spectro-imaging camera for the CFHT

Barry Michael Starr; Rene Doyon; Jean-Luc Beuzit; Philippe Vallee; Robert Calder; Jamey E. Eriksen; Jean-Charles Cuillandre; Bernt Grundseth; Gregory A. Barrick; Jeff Ward; Wiley Knight; Daniel Nadeau

doi:10.1117/12.395468

16 August 2000 CFHTIR: 1Kx1K NIR spectro-imaging camera for the CFHT

Barry Michael Starr, Rene Doyon, Jean-Luc Beuzit, Philippe Vallee, Robert Calder, Jamey E. Eriksen, Jean-Charles Cuillandre, Bernt Grundseth, Gregory A. Barrick, Jeff Ward, Wiley Knight, Daniel Nadeau

Author Affiliations +

Proceedings Volume 4008, Optical and IR Telescope Instrumentation and Detectors; (2000) https://doi.org/10.1117/12.395468
Event: Astronomical Telescopes and Instrumentation, 2000, Munich, Germany

Abstract

The CFHTIR is a large format near IR camera based on the Rockwell HAWAII Array. CFHTIR is designed for both direct imaging at the f/8 Cassegrain focus, as well as spectroscopy on the OSIS multiobject spectrograph. The camera provides 0.21 inch/pixel sampling in both applications with a single set cold transfer optics and pupil mask. The camera includes two eight-position filterwheels driven by cryogenic stepper motors with position control using a novel Hall effect sensor technique. CFHTIR also uses a novel dewar wiring technique employing flexible circuit vacuum feedthrus. CFHTIR is the second large format IR camera based on the Hawaii array constructed at CFHT, the first being the KIR camera for the CFHT Adaptive Optics Bonnette which was commissioned in 1997. This paper describes the system architecture of the CFHTIR highlighting key design concepts and detailing the physical elements.

Citation Download Citation

Barry Michael Starr, Rene Doyon, Jean-Luc Beuzit, Philippe Vallee, Robert Calder, Jamey E. Eriksen, Jean-Charles Cuillandre, Bernt Grundseth, Gregory A. Barrick, Jeff Ward, Wiley Knight, and Daniel Nadeau "CFHTIR: 1Kx1K NIR spectro-imaging camera for the CFHT", Proc. SPIE 4008, Optical and IR Telescope Instrumentation and Detectors, (16 August 2000); https://doi.org/10.1117/12.395468

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