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Proceedings Paper

Precision cryogenic mechanisms for the Michelle mid-infrared spectrograph
Author(s): David Montgomery; John Murray
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Paper Abstract

The UKATC has recently delivered and commissioned the Michelle mid-IR spectrograph on UKIRT. This instrument has a variety of precision vacuum-cryogenic mechanisms that utilize technology developed over a number of years at the UKATC in instruments such as IRCAM, CGS4, SCUBA, GMOS and UIST. In these applications it is critical that the mechanisms operate reliably and with a high degree of precision. In most cases the mechanisms support optical elements that must be rigidly held in place when the instrument is tilted during observations on the telescope. This paper describes the level of performance achieved with the Michelle mechanisms and the critical elements of their design.

Paper Details

Date Published: 7 March 2003
PDF: 12 pages
Proc. SPIE 4841, Instrument Design and Performance for Optical/Infrared Ground-based Telescopes, (7 March 2003); doi: 10.1117/12.459892
Show Author Affiliations
David Montgomery, UK Astronomy Technology Ctr./Royal Observatory Edinburgh (United Kingdom)
John Murray, UK Astronomy Technology Ctr./Royal Observatory Edinburgh (United Kingdom)


Published in SPIE Proceedings Vol. 4841:
Instrument Design and Performance for Optical/Infrared Ground-based Telescopes
Masanori Iye; Alan F. M. Moorwood, Editor(s)

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