27 July 2016 Characterizing the vibration environments of the Gemini telescopes
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Abstract
We report the results of a multi-year program to measure the vibration characteristics of the two Gemini telescopes. Measurements with fast-guiding wavefront sensors and networks of accelerometers show a correlation between image motion and optical vibrations induced mostly by instrument cryocoolers. We have mitigated the strongest vibrations by fast-guiding compensation and active cancellation of vibration sources.
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T. L. Hayward, M. Rippa, H. Bonnet, C. Cavedoni, R. Galvez, G. Gausachs, M. Cho, "Characterizing the vibration environments of the Gemini telescopes", Proc. SPIE 9906, Ground-based and Airborne Telescopes VI, 99065N (27 July 2016); doi: 10.1117/12.2232140; https://doi.org/10.1117/12.2232140
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