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Proceedings Paper

Thermomechanical architecture of the VIS focal plane for Euclid
Author(s): Jérôme Martignac; Michaël Carty; Thierry Tourette; Damien Bachet; Michel Berthé; Jean-Louis Augueres; Jérôme Amiaux; Jean Fontignie; Benoît Horeau; Diana Renaud; Sabrina Pottinger; James Denniston; Berend Winter; Phillip Guttridge; Richard Cole; Mark Cropper; Sami Niemi; John Coker; Thomas Hunt
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Paper Abstract

One of the main challenges for current and near future space experiments is the increase of focal plane complexity in terms of amount of pixels. In the frame work of the ESA Euclid mission to be launched in 2020, the Euclid Consortium is developing an extremely large and stable focal plane for the VIS instrument. CEA has developed the thermomechanical architecture of that Focal Plane taking into account all the very stringent performance and mission related requirements. The VIS Focal Plane Assembly integrates 36 CCDs (operated at 150K) connected to their front end electronics (operated at 280K) as to obtain one of the largest focal plane (∼0.6 billion pixels) ever built for space application after the GAIA one. The CCDs are CCD273 type specially designed and provided by the e2v company under ESA contract, front end electronics is studied and provided by MSSL. In this paper we first recall the specific requirements that have driven the overall architecture of the VIS-FPA and especially the solutions proposed to cope with the scientific needs of an extremely stable focal plane, both mechanically and thermally. The mechanical structure based on SiC material used for the cold sub assembly supporting the CCDs is detailed. We describe also the modular architecture concept that we have selected taking into account AIT-AIV and programmatic constraints.

Paper Details

Date Published: 28 August 2014
PDF: 15 pages
Proc. SPIE 9143, Space Telescopes and Instrumentation 2014: Optical, Infrared, and Millimeter Wave, 91432Y (28 August 2014); doi: 10.1117/12.2055998
Show Author Affiliations
Jérôme Martignac, Commissariat à l'Énergie Atomique (France)
Michaël Carty, Commissariat à l'Énergie Atomique (France)
Thierry Tourette, Commissariat à l'Énergie Atomique (France)
Damien Bachet, Commissariat à l'Énergie Atomique (France)
Michel Berthé, Commissariat à l'Énergie Atomique (France)
Jean-Louis Augueres, Commissariat à l'Énergie Atomique (France)
Jérôme Amiaux, Commissariat à l'Énergie Atomique (France)
Jean Fontignie, Commissariat à l'Énergie Atomique (France)
Benoît Horeau, Commissariat à l'Énergie Atomique (France)
Diana Renaud, Commissariat à l'Énergie Atomique (France)
Sabrina Pottinger, Mullard Space Science Lab., Univ. College London (United Kingdom)
James Denniston, Mullard Space Science Lab., Univ. College London (United Kingdom)
Berend Winter, Mullard Space Science Lab., Univ. College London (United Kingdom)
Phillip Guttridge, Mullard Space Science Lab., Univ. College London (United Kingdom)
Richard Cole, Mullard Space Science Lab., Univ. College London (United Kingdom)
Mark Cropper, Mullard Space Science Lab., Univ. College London (United Kingdom)
Sami Niemi, Mullard Space Science Lab., Univ. College London (United Kingdom)
John Coker, Mullard Space Science Lab., Univ. College London (United Kingdom)
Thomas Hunt, Mullard Space Science Lab., Univ. College London (United Kingdom)


Published in SPIE Proceedings Vol. 9143:
Space Telescopes and Instrumentation 2014: Optical, Infrared, and Millimeter Wave
Jacobus M. Oschmann; Mark Clampin; Giovanni G. Fazio; Howard A. MacEwen, Editor(s)

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