Thin-Film-Based Ultralow Noise Squid Magnetometer
IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY(2016)
摘要
We report on the development of an ultralow-noise thin-film-based superconducting quantum interference device (SQUID) magnetometer. A niobium thin-film pickup coil is connected to the input coil of a SQUID current sensor. The low capacitance of the used submicrometer cross-type Josephson junctions enables superior noise performance of the device. Application scenarios, e. g., in geophysics and ultralow-field magnetic resonance imaging, are discussed.
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关键词
Geomagnetism, superconducting quantum interference devices (SQUIDs), ultralow-field magnetic resonance imaging (ULF MRI), ultralow noise
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