MMA Memo #83

Thermal Considerations for mmA Antennas

James W. Lamb [1]

May 5, 1992

Keywords:

As an open facility the mmA is expected to be heavily scheduled and it is reasonable to expect it to perform within specifications even during the rapid temperature changes which occur on a clear exposed site at dawn to dusk. Furthermore, solar observing is specificed as a major capability of the instrument, so special precautions need to be taken to allow high-precision operation during and after pointing at the sun, as well as avoiding damage by the focused IR and visible radiation. This note summarizes and supplements existing information on thermal problems from a variety of sources, and outlines areas to be studied.

[1] OVRO

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Last modified: 09 December, 1999