Physics
Scientific paper
Dec 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990sdsr.rept...41m&link_type=abstract
In Minister für Wissenschaft und Forschung des Landes Nordrhein-Westfalen, Subject Space 2: A Documentation on Space Research in
Physics
Heterodyning, Infrared Telescopes, Product Development, Submillimeter Waves, C-141 Aircraft, Mixing Circuits, Orion Nebula
Scientific paper
A heterodyne spectrometer for the wavelength region between 100 and 500 microns was developed as preparation for the FIRST (Far Infrared and Submillimeter Space Telescope) project. Since no low noise amplifiers exist in this region, the incoming signal is mixed down to a microwave frequency and then spectrally analyzed in an acousto-optical spectrometer. The heterodyne spectrometer was used on the KAO (Kuiper Airborne Observatory) of NASA for the observation of the Orion nebula.
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