SPIRou @CFHT: design of the instrument control system

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DOIResolve DOI: http://doi.org/10.1117/12.926392
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TypeArticle
Proceedings titleSoftware and Cyberinfrastructure for Astronomy II
Series titleProceedings of SPIE; Volume 8451
ConferenceSoftware and Cyberinfrastructure for Astronomy II, July 1-4, 2012, Amsterdam, Netherlands
ISSN0277-786X
ISBN9780819491527
Article number84513J
SubjectCFHT; Control-command; Fast guiding; High precision; Near-IR; Spectropolarimetry; Thermal control; Tip-tilt; Algorithms; Stars; Velocity measurement; Velocimeters
AbstractSPIRou is a near-IR (0.98-2.35μm), echelle spectropolarimeter / high precision velocimeter being designed as a next-generation instrument for the 3.6m Canada-France-Hawaii Telescope on Mauna Kea, Hawaii, with the main goals of detecting Earth-like planets around low-mass stars and magnetic fields of forming stars. The unique scientific and technical capabilities of SPIRou are described in a series of eight companion papers. In this paper, the means of controlling the instrument are discussed. Most of the instrument control is fairly normal, using off-the-shelf components where possible and reusing already available code for these components. Some aspects, however, are more challenging. In particular, the paper will focus on the challenges of doing fast (50 Hz) guiding with 30 mas repeatability using the object being observed as a reference and on thermally stabilizing a large optical bench to a very high precision (∼1 mK).
Publication date
LanguageEnglish
AffiliationNational Research Council Canada (NRC-CNRC); National Science Infrastructure
Peer reviewedYes
NPARC number21270300
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Record identifier9a3e6251-3bde-4d46-a1f5-4a2ec87a8502
Record created2014-01-22
Record modified2017-09-13
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