NASA NTRS · 19740039053
Sensitivity of Josephson-effect millimeter-wave radiometer
Abstract
The noise temperature and the minimum detectable temperature of a Josephson junction in video detection of microwave and millimeter-wave radiation has been calculated. We use the well-known method based on a Fokker-Planck equation. The noise temperature can be very close to ambient temperature. Because its predetection bandwidth is very wide, a Josephson-effect radio telescope receiver can have a minimum detectable temperature better than that of a traveling-wave maser.
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Ohta, H., Feldman, M. J., Parrish, P. T., Chiao, R. Y.. 1974-01-01. Sensitivity of Josephson-effect millimeter-wave radiometer. https://ntrs.nasa.gov/citations/19740039053
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