The effect of background radiation on the characteristics of a Josephson detector
Abstract
Josephson point-contact detectors can be used to make radio-astronomical measurements of centimeter and millimeter waves. This paper presents an experimental study of the effect of background noise on the characteristics of such a detector. A reduction of the noise temperature from about 300 K to about 10 K significantly improves the sensitivity of the detector. The experimental results agree well with theoretical calculations.
- Publication:
-
Radiotekhnika i Elektronika
- Pub Date:
- August 1981
- Bibcode:
- 1981RaEl...26.1760I
- Keywords:
-
- Background Radiation;
- Josephson Junctions;
- Radiation Detectors;
- Radio Astronomy;
- Radiometers;
- Centimeter Waves;
- Millimeter Waves;
- Noise Temperature;
- Radiation Effects;
- Sensitivity;
- Temperature Dependence;
- Electronics and Electrical Engineering