27 July 2016 New life for the THEMIS solar telescope
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Abstract
The THEMIS solar telescope is building a classical adaptive optics (AO) system to be operating on the Sun in 2017. To make compatible its excellent dual beam spectropolarimetric features with the AO also requires a major refurbishment of the relay optics starting at the M2 and down to the spectrograph entrance. This paper presents the design parameters and expected performances of our AO system, and explains why and how we intend to control to a few percent the Mueller matrix of the whole optical path from the prime focus to the spectropolarimetric cameras. This project is co-funded by the European Union SOLARNET Project Ref.:312495, and the Centre National de la Recherche Scientifique.
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Bernard Gelly, Maud Langlois, Gil Moretto, Richard Douet, Arturo Lopez Ariste, Michel Tallon, Eric Thiébaut, Nicolas Geyskens, Guillaume Lorgeoux, Johnathan Léger, Claude Le Men, "New life for the THEMIS solar telescope", Proc. SPIE 9906, Ground-based and Airborne Telescopes VI, 99065A (27 July 2016); doi: 10.1117/12.2232455; https://doi.org/10.1117/12.2232455
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