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Proceedings Paper

New life for the THEMIS solar telescope
Author(s): Bernard Gelly; Maud Langlois; Gil Moretto; Richard Douet; Arturo Lopez Ariste; Michel Tallon; Eric Thiébaut; Nicolas Geyskens; Guillaume Lorgeoux; Johnathan Léger; Claude Le Men
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Paper 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.

Paper Details

Date Published: 27 July 2016
PDF: 11 pages
Proc. SPIE 9906, Ground-based and Airborne Telescopes VI, 99065A (27 July 2016); doi: 10.1117/12.2232455
Show Author Affiliations
Bernard Gelly, Themis S.L. (Spain)
Maud Langlois, Ctr. de Recherche Astronomique de Lyon (France)
CNRS, Univ. Lyon1 (France)
Gil Moretto, Ctr. de Recherche Astronomique de Lyon (France)
CNRS, Univ. Lyon1 (France)
Richard Douet, Themis S.L. (Spain)
Arturo Lopez Ariste, Institut de Recherche en Astrophysique et Planétologie (France)
Michel Tallon, Ctr. de Recherche Astrophysique de Lyon (France)
CNRS, Univ. Lyon1 (France)
Eric Thiébaut, Ctr. de Recherche Astrophysique de Lyon (France)
CNRS, Univ. Lyon1 (France)
Nicolas Geyskens, INSU Division Technique, CNRS (France)
Guillaume Lorgeoux, INSU Division Technique, CNRS (France)
Johnathan Léger, Ctr. de Recherche Astrophysique de Lyon (France)
Univ. Lyon1 (France)
Claude Le Men, L’Ingénierie des Systèmes Biologiques et des Procédés, CNRS (France)


Published in SPIE Proceedings Vol. 9906:
Ground-based and Airborne Telescopes VI
Helen J. Hall; Roberto Gilmozzi; Heather K. Marshall, Editor(s)

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