SQUID techniques.I. Obtaining reliability in point-contact SQUID's

Abstract

Stable and permanent niobium point-contact SQUID's have been fabricated by using oxidized niobium screws to form the point contact. The reliability of these devices is further ensured by a simple and versatile environmental shielding procedure. Over a period of five years there have been no failures of such SQUID's in our laboratory. The signal-to-noise performance of these SQUID's is quite good.

References

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