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Proceedings Paper

CFHTIR: 1Kx1K NIR spectro-imaging camera for the CFHT
Author(s): 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
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Paper 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.

Paper Details

Date Published: 16 August 2000
PDF: 11 pages
Proc. SPIE 4008, Optical and IR Telescope Instrumentation and Detectors, (16 August 2000); doi: 10.1117/12.395468
Show Author Affiliations
Barry Michael Starr, Canada-France-Hawaii Telescope Corp. (United States)
Rene Doyon, Univ. de Montreal (Canada)
Jean-Luc Beuzit, Canada-France-Hawaii Telescope Corp. (France)
Philippe Vallee, Univ. de Montreal (Canada)
Robert Calder, Canada-France-Hawaii Telescope Corp. (United States)
Jamey E. Eriksen, Canada-France-Hawaii Telescope Corp. (United States)
Jean-Charles Cuillandre, Canada-France-Hawaii Telescope Corp. (United States)
Bernt Grundseth, Canada-France-Hawaii Telescope Corp. (United States)
Gregory A. Barrick, Canada-France-Hawaii Telescope Corp. (United States)
Jeff Ward, Canada-France-Hawaii Telescope Corp. (United States)
Wiley Knight, Canada-France-Hawaii Telescope Corp. (United States)
Daniel Nadeau, Univ. de Montreal (Canada)


Published in SPIE Proceedings Vol. 4008:
Optical and IR Telescope Instrumentation and Detectors
Masanori Iye; Alan F. M. Moorwood, Editor(s)

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