TEQUILA: NIR camera/spectrograph based on a Rockwell 1024x1024 HgCdTe FPA

Details TEQUILA: NIR camera/spectrograph based on a Rockwell 1024x1024 HgCdTe FPA TEQUILA: NIR camera/spectrograph based on a Rockwell 1024x1024 HgCdTe FPA

Aug 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998spie.3354..683r&link_type=abstract

Proc. SPIE Vol. 3354, p. 683-689, Infrared Astronomical Instrumentation, Albert M. Fowler; Ed.

Physics

Optics

Scientific paper

We describe the configuration and operation modes of the IR camera/spectrograph: TEQUILA based on a 1024 X 1024 HgCdTe FPA. The optical system will allow three possible modes of operation: direct imaging, low and medium resolution spectroscopy and polarimetry. The basic system is being designed to consist of the following: 1) A LN(subscript 2) dewar that allocates the FPA together with the preamplifiers and a 24 filter position cylinder. 2) Control and readout electronics based on DSP modules linked to a workstation through fiber optics. 3) An opto-mechanical assembly cooled to -30 degrees that provides an efficient operation of the instrument in its various modes. 4) A control module for the moving parts of the instrument. The opto-mechanical assembly will have the necessary provision to install a scanning Fabry-Perot interferometer and an adaptive optics correction system. The final image acquisition and control of the whole instrument is carried out in a workstation to provide the observer with a friendly environment. The system will operate at the 2.1 m telescope at the Observatorio Astronomico Nacional in San Pedro Martir, B.C. (Mexico), and is intended to be a first-light instrument for the new 7.8m Mexican IR-Optical Telescope.

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