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Millimeter and Submillimeter Detectors for Astronomy II
ABSRACT Stability of a hot-electron bolometer (HEB) heterodyne receiver was investigated at frequencies from 0.6THz to 1.9THz. The Allan variance was measured as a function of the integration time and the Allan time was obtained for HEB mixers of different size, as well as with different types of the local oscillator: FIR laser, multiplier chain, and BWO. We have found that due to stronger dependence of the mixer gain and noise vs mixer bias voltage and current the Allan time is shorter fordoi:10.1117/12.553162 fatcat:lbzrs3rcsjg4dchs3thqql67am