Physics – Optics
Scientific paper
Apr 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992apj...388..242f&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 388, April 1, 1992, p. 242-252.
Physics
Optics
44
Anisotropy, Black Body Radiation, Bolometers, Galactic Clusters, Millimeter Waves, Relic Radiation, Balloon-Borne Instruments, Brightness Distribution, Telescopes
Scientific paper
The performance of a bolometric system designed to measure the anisotropy of the cosmic microwave background (CMB) radiation on angular scales from 0.3 to 3 deg is presented. The system represents a collaborative effort combining a low-background 1-m diameter balloon-borne telescope with new multimode feed optics, a beam modulation mechanism with high stability, and a four-channel bolometric receiver with passbands centered near frequencies of 3, 6, 9, and 12/cm (90, 180, 270, and 360 GHz). The telescope has been flown three times with the bolometric receiver and has demonstrated detector noise limited performance capable of reaching sensitivity levels of about 0.00001 with detectors operated at 0.3 K.
Alsop D. C.
Cheng Edward S.
Clapp Andre Charles
Cottingham David A.
Fischer Marc L.
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