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Proceedings Paper

Simple and low-cost infrared imager for the Dominion Astrophysical Observatory
Author(s): Richard G. Murowinski; Dennis Derdall; Leslie K. Saddlemyer; James R. Stilburn; Robert Wooff; Linzhuang Gao; Timothy J. Davidge
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Paper Abstract

Infrared (IR) observations have traditionally been limited to a relatively small number of specialized telescopes since: (1) the cost of detectors and detector system development is large; and (2) there are a number of significant technical differences associated with an 'infrared-capable' telescope when compared to a traditional optical telescope. With the advent of lower cost infrared detectors in recent years, IR instrumentation now becomes accessible to observatories with budgets unable to support the traditional high costs. We have assembled a complete observing system making use of a Hughes 256 X 256 pixel PtSi 1 - 5 micron array detector. This particular PtSi detector was chosen because it has several characteristics conducive to precise photometric observations. The detector has 100% fill factor, a large dynamic range of 104, low dark current and the potential for extremely good stability. The system we describe was designed with an emphasis on simplicity and the use of commercially available hardware and software, while retaining full performance of the detector. The system proved to integrate easily into the CCD observing environment used on our telescopes.

Paper Details

Date Published: 20 October 1993
PDF: 9 pages
Proc. SPIE 1946, Infrared Detectors and Instrumentation, (20 October 1993); doi: 10.1117/12.158685
Show Author Affiliations
Richard G. Murowinski, Dominion Astrophysical Observatory (Canada)
Dennis Derdall, Dominion Astrophysical Observatory (Canada)
Leslie K. Saddlemyer, Dominion Astrophysical Observatory (Canada)
James R. Stilburn, Dominion Astrophysical Observatory (Canada)
Robert Wooff, Dominion Astrophysical Observatory (Canada)
Linzhuang Gao, Dominion Astrophysical Observatory (Canada)
Timothy J. Davidge, Univ. of British Columbia and Dominion Astrophysical Observatory (Canada)

Published in SPIE Proceedings Vol. 1946:
Infrared Detectors and Instrumentation
Albert M. Fowler, Editor(s)

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