The ESO IR Photometer/Spectrophotometer Detectors

A. van Dijsseldonk; A. F. M. Moorwood

doi:10.1117/12.935197

30 November 1983 The ESO IR Photometer/Spectrophotometer Detectors

A. van Dijsseldonk, A. F. M. Moorwood

Proceedings Volume 0395, Advanced Infrared Sensor Technology; (1983) https://doi.org/10.1117/12.935197
Event: 1983 International Technical Conference/Europe, 1983, Geneva, Switzerland

Abstract

The ESO Infrared Photometer/Spectrophotometers are at present in use on the 3.6 m and 1 m telescopes at our observatory at La Silla in Chile. Each instrument consists of a photometer mount and two detector units, a solid N2 cooled (~55°K) InSb detector for the 1-5 μm region and a bolometer, for the 2-25 μm region, which is cooled to ~l.2°K by pumping on liquid helium. Early next year, two new photometer mounts will be installed on the 2.2 m and on the 3.6 m telescopes, both using an f/35 chopping secondary mirror. The detector units are mechanically and optically identical for these 4 instruments in order to facilitate their operation and maintenance at the observatory. A description of the detector units follows.

Citation Download Citation

A. van Dijsseldonk and A. F. M. Moorwood "The ESO IR Photometer/Spectrophotometer Detectors", Proc. SPIE 0395, Advanced Infrared Sensor Technology, (30 November 1983); https://doi.org/10.1117/12.935197

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