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Proceedings Paper

Electrical wiring and screening design for the MICHELLE Midinfrared Spectrometer
Author(s): Joel Sylvester
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Paper Abstract

The Michelle mid-infrared spectrometer and imager is being built for the UKIRT and Gemini telescopes on Mauna Kea. In common with many other instruments being built for the new generation of telescopes, the focal plane array detector used requires a large number of electrical connections. The Michelle instrument integrates the wiring in to the design of the Joule-Thompson cooler. Three thin-walled stainless steel tubes form part of the structure of the cooler. The output, bias and clock wiring pass down separate tubes. The wiring is made up of custom woven cables optimized for low capacitance (outputs) or controlled impedance (clocks). The wiring assemblies can be removed from the tubes without straining the wires in any way. The stainless-steel tubes also form part of a high integrity screen totally enclosing the array drive and data acquisition system. The only breaks in the screen are to allow light on to the array, power to the electronics, and fiber optic connections to the controller computing system.

Paper Details

Date Published: 21 March 1997
PDF: 7 pages
Proc. SPIE 2871, Optical Telescopes of Today and Tomorrow, (21 March 1997); doi: 10.1117/12.269016
Show Author Affiliations
Joel Sylvester, Royal Observatory Edinburgh (United Kingdom)

Published in SPIE Proceedings Vol. 2871:
Optical Telescopes of Today and Tomorrow
Arne L. Ardeberg, Editor(s)

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