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Proceedings Paper

A low-cost high-frequency DIMM platform for the Hobby-Eberly Telescope
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Paper Abstract

A tower and access platform were fabricated and erected for the Hobby-Eberly Telescope (HET) Differential Image Motion Monitor (DIMM). The 5 meter high tower exhibits a fundamental frequency of 43 Hz. The cost of the tower system, including access platform and enclosure was $12K US. The enclosure includes a unique application of an off-the-shelf truck accessory that serves as a shutter. The enclosure is ventilated, and incorporates a windshield to reduce vibrations that have proven problematic in the Meade Telescopes used for the DIMM system.

Paper Details

Date Published: 28 September 2004
PDF: 11 pages
Proc. SPIE 5489, Ground-based Telescopes, (28 September 2004); doi: 10.1117/12.552496
Show Author Affiliations
John M. Good, McDonald Observatory/Univ. of Texas (United States)
Edwin S. Barker, McDonald Observatory/Univ. of Texas (United States)

Published in SPIE Proceedings Vol. 5489:
Ground-based Telescopes
Jacobus M. Oschmann Jr., Editor(s)

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