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7 March 2003 Characterization in the laboratory of VISIR, the mid-infrared imager and spectrometer for the VLT
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In this paper, we present the status of VISIR, the mid-infrared instrument to be installed in 2003 at the Cassegrain focus of MELIPAL, one of the four 8-meter telescopes of the European Very Large Telescope. This cryogenic instrument, optimized for diffraction-limited performance in both mid-infrared atmospheric windows (N and Q band), combines imaging capabilities over a field up to about 1x1 arcmin2, and long-slit (0.5 arcmin) grating spectroscopy with various spectral resolutions up to R=25000 at 10 μm and 12500 at 20 μm. The contract to design and build VISIR was signed in November 1996 between the European Southern Observatory (ESO) and a French-Dutch consortium of institutes led by Service d'Astrophysique of Commissariat l'Energie Atomique (CEA). A key step in the project has been passed in December 2001, with the first infrared images in the laboratory and in April 2002 with the first infrared spectra in the laboratory. We present the results of the laboratory tests of the instrument, which is scheduled to be shipped to Paranal at the end of 2002.
© (2003) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Pierre-Olivier Lagage, Jan-Willem Pel, Arnaud Claret, Sieds Damstra, Didier Dubreuil, Gilles A. Durand, Eddy Elswijk, Philippe Galdemard, Arie N. de Jong, Gabby Kroes, Charles Lyraud, Eric Pantin, Johan Pragt, Yvon Rio, Anton Schoenmaker, Martial Authier, Jean Belorgey, Jean-Francois Gournay, Michel Lortholary, Yves Lussignol, and Christian Veyssiere "Characterization in the laboratory of VISIR, the mid-infrared imager and spectrometer for the VLT", Proc. SPIE 4841, Instrument Design and Performance for Optical/Infrared Ground-based Telescopes, (7 March 2003);


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