DocumentCode :
880341
Title :
Thermal detection radiometry at short millimeter wavelengths
Author :
Low, F.J.
Author_Institution :
University of Arizona, Tucson, Ariz.
Volume :
54
Issue :
4
fYear :
1966
fDate :
4/1/1966 12:00:00 AM
Firstpage :
477
Lastpage :
484
Abstract :
Details concerning the design, construction, and operation of thermal detection radiometers for wavelengths near one mm are given. The sensitivity of these systems greatly exceeds that of more conventional radiometers at short millimeter wavelengths. Although the present designs are shown to be far from optimum, they have made possible a considerable number of astronomical observations that were previously beyond the state of the art. Measurements of atmospheric attenuation in the one-mm window as a function of total precipitable water vapor are presented, and methods of reducing the effects of varying sky background are discussed.
Keywords :
Antennas and propagation; Microwave antennas; Millimeter wave technology; Moon; Optical attenuators; Radio astronomy; Radiometers; Radiometry; Solar radiation; Sun;
fLanguage :
English
Journal_Title :
Proceedings of the IEEE
Publisher :
ieee
ISSN :
0018-9219
Type :
jour
DOI :
10.1109/PROC.1966.4761
Filename :
1446691
Link To Document :
بازگشت