An f/35 submillimeter photometer for the NASA infrared telescope facility

Details An f/35 submillimeter photometer for the NASA infrared telescope facility An f/35 submillimeter photometer for the NASA infrared telescope facility

Dec 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980pasp...92..863w&link_type=abstract

Astronomical Society of the Pacific, Publications, vol. 92, Dec. 1980-Jan. 1981, p. 863-869. Research supported by the Hertz Fou

Physics

Optics

20

Design Analysis, Infrared Radiometers, Infrared Telescopes, Photometers, Submillimeter Waves, Apertures, Electromagnetic Wave Filters, Heat Transmission, Infrared Scanners, Microwave Radiometers, Photosensitivity, Physical Optics

Scientific paper

The design and performance of an f/35 submillimeter photometer are discussed. It is noted that the instrument provides for both broad- and medium-width passbands between 350 microns and 2 mm and for beam sizes between 28 arcsec and 100 arcsec FWHM. Under good atmospheric conditions, a broad-band 400 micron sensitivity of approximately 1.5 Jy is found to be obtainable in one hour. A description is given of the photometer's support housing, submillimeter radiometer, and electronics and data-handling system. In evaluating the performance, attention is given to sensitivity, beam profiles, and the effect of changes in the aperture on the signal.

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