Designing the Gemini high-resolution optical spectrograph structure to meet the flexural performance required at a Cassegrain focus

Details Designing the Gemini high-resolution optical spectrograph structure to meet the flexural performance required at a Cassegrain focus Designing the Gemini high-resolution optical spectrograph structure to meet the flexural performance required at a Cassegrain focus

Aug 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000spie.4008..148c&link_type=abstract

Proc. SPIE Vol. 4008, p. 148-158, Optical and IR Telescope Instrumentation and Detectors, Masanori Iye; Alan F. Moorwood; Eds.

Physics

Instrumentation and Detectors

Scientific paper

The HROS is a Cassegrain focus instrument for use on the Gemini South telescope at Cero Pachon, Chile. It is of novel design, using exceptionally large optical components, and subject to the normal high flexural and stability requirements of optical wavelength instrumentation. To meet these requirements while subjecting HROS to the infinite number of gravity vectors found at the Cassegrain focus has resulted in a very difficult design and analysis of the support structure. This paper describes the mechanical design approach to meting these requirements and presents the flexural performance predictions for the structure as given by Finite Element Analysis.

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