Abstract
Superconducting QUantum Interference Devices (SQUIDs) are the most sensitive detectors of magnetic flux currently available. They are amazingly versatile, being able to measure any physical quantity that can be converted to a flux, for example, magnetic field, magnetic field gradient, current, voltage, displacement, and magnetic susceptibility. As a result, the applications of SQUIDs are wide ranging, from the detection of tiny magnetic fields produced by the human brain and the measurement of fluctuating geomagnetic fields in remote areas to the detection of gravity waves and the observation of spin noise in an ensemble of magnetic nuclei.
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Clarke, J. (1989). SQUID Concepts and Systems. In: Weinstock, H., Nisenoff, M. (eds) Superconducting Electronics. NATO ASI Series, vol 59. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-83885-9_5
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