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Proceedings Paper

EMIR electronics and mechanism control
Author(s): Fernando Gago; Jose J. Diaz; Pablo Redondo; Carlos Gonzalez; Francis Beigbeder; Yvan Chapon; Francisco Garzon; Jesus Patron
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Paper Abstract

EMIR is a multiobject intermediate resolution near infrared (1.0-2.5 microns) spectrograph with image capabilities to be mounted on the 10m Gran Telescopio de Canarias (GTC), located on the Spanish island of La Palma. This paper shows an overview of the EMIR electronics and mechanism control. First, a description of the detector (a Hawaii-2 array) electronics is given, which involves the use of commercial components (resistors, capacitors and operational amplifiers) working under cryogenic conditions (around 77K). This paper describes the particularities of the cold electronics, showing the problems found and the way to solve them. Preliminary results of the detector characterization are also presented in this paper. Secondly, an overview of the different mechanisms of the instrument is presented. They are cryogenic mechanisms with pretty stringent positioning requirements. The technological solutions used to meet the tight control requirements will be described.

Paper Details

Date Published: 30 September 2004
PDF: 10 pages
Proc. SPIE 5492, Ground-based Instrumentation for Astronomy, (30 September 2004); doi: 10.1117/12.550506
Show Author Affiliations
Fernando Gago, Instituto de Astrofisica de Canarias (Spain)
Jose J. Diaz, Instituto de Astrofisica de Canarias (Spain)
Pablo Redondo, Instituto de Astrofisica de Canarias (Spain)
Carlos Gonzalez, Instituto de Astrofisica de Canarias (Spain)
Francis Beigbeder, Observatoire Midi-Pyrenees (France)
Yvan Chapon, Instituto de Astrofisica de Canarias (Spain)
Francisco Garzon, Instituto de Astrofisica de Canarias (Spain)
Univ. de La Laguna (Spain)
Jesus Patron, Instituto de Astrofisica de Canarias (Spain)

Published in SPIE Proceedings Vol. 5492:
Ground-based Instrumentation for Astronomy
Alan F. M. Moorwood; Masanori Iye, Editor(s)

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