Electronic Resource
[S.l.]
:
American Institute of Physics (AIP)
Review of Scientific Instruments
61 (1990), S. 158-164
ISSN:
1089-7623
Source:
AIP Digital Archive
Topics:
Physics
,
Electrical Engineering, Measurement and Control Technology
Notes:
The design and performance of a 19-GHz one-horn maser radiometer is discussed. The antenna is a lensed, conical horn with 3° angular resolution. The radiometer is stabilized by chopping against an internal cold load. A novel chopping scheme allows continual calibration of maser gain fluctuations with only a modest penalty in noise. The method of calibrating this instrument is described. The instrument has been used to map the sky with an equivalent blackbody temperature sensitivity of 1 mK per 3°×3° resolution element.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.1141867
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