Multidetector grating spectrometer for infrared astronomy

Computer Science – Performance

Scientific paper

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Cryostats, Infrared Astronomy, Spectral Resolution, Spectrometers, Field Effect Transistors, Fine Structure, Microprocessors, Performance Tests

Scientific paper

A cryogenic grating spectrometer is described for astronomical use in the 8-13 microns atmospheric window with spectral resolving power near 200. Radiation is detected by means of an array of nine Si:As detectors located in the plane of dispersion. The instrument is controlled remotely by a microprocessor, which also handles data acquisition and storage. Some results of observations at the Arcetri telescope at Gornergrat are shown.

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