A direct readout high-T/sub c/ dc SQUID electronics with ac bias and a liquid-nitrogen-cooled preamplifier
作者： S.A. Gudoshnikov , L.V. Matveets , R. Weidl , L. Dorrer , P. Seidel
DOI: 10.1109/77.783999
关键词:
摘要: Direct readout dc SQUID electronics based on a liquid-nitrogen-cooled preamplifier and alternating current bias was developed. The with an intrinsic voltage noise of 0.18 nV/Hz/sup 1/2/ used as the first stage this electronics. A mathematical description suppression by done. Low-frequency reduced factor 6 at 1 Hz technique.
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