Submillimeter detector calibration with a low-temperature reference for space applications

Details Submillimeter detector calibration with a low-temperature reference for space applications Submillimeter detector calibration with a low-temperature reference for space applications

Jun 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977rsci...48..700n&link_type=abstract

Review of Scientific Instruments, vol. 48, June 1977, p. 700-702. Research supported by the California Institute of Technology.

Physics

4

Calibrating, Infrared Detectors, Satellite-Borne Instruments, Submillimeter Waves, Background Radiation, Black Body Radiation, Bolometers, Low Temperature Environments, Wavelengths

Scientific paper

Infrared observations from space will involve low levels of background radiation incident on the detector. A detector calibration method is described which uses a cold blackbody source having low background. The effective wavelength of the modulated power is determined by mean temperature of the source since no filters are employed. Direct temperature modulation of the source eliminates the need for any chopping mechanism. Such a low-temperature modulated source can be viewed as a low-resolution temperature-tuned absolute spectrometer.

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