Thermal considerations in modern spectrograph design: the Binospec spectrograph

Warren L. Brown; Daniel G. Fabricant; David A. Boyd

doi:10.1117/12.460098

7 March 2003 Thermal Considerations in Modern Spectrograph Design: the Binospec spectrograph

Warren L. Brown, Daniel G. Fabricant, David A. Boyd

Proceedings Volume 4841, Instrument Design and Performance for Optical/Infrared Ground-based Telescopes; (2003) https://doi.org/10.1117/12.460098
Event: Astronomical Telescopes and Instrumentation, 2002, Waikoloa, Hawai'i, United States

Abstract

We have completed a detailed thermal analysis of Binospec, a wide-field, multi-slit spectrograph being developed for the 6.5m MMT. The goals of our analysis were to minimize temperature gradients and thermally-induced deflections and achieve a > 24 hr time constant in the spectrograph optics. We consider the effects of conduction, convection, and radiation with the external environment, and model the consequences of opening a spectrograph to insert new slit masks or filters. We study when internal heat sources balance environmental effects, and the local effects of a hot motor in a spectrograph. We review the results of these thermal analyses and draw general conclusions useful to instrument builders.

Citation Download Citation

Warren L. Brown, Daniel G. Fabricant, and David A. Boyd "Thermal Considerations in Modern Spectrograph Design: the Binospec spectrograph", Proc. SPIE 4841, Instrument Design and Performance for Optical/Infrared Ground-based Telescopes, (7 March 2003); https://doi.org/10.1117/12.460098

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