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New NIST mini-sensor may have biomedical and security applications

A tiny sensor that can detect magnetic field changes as small as 70 femtoteslas-equivalent to the brain waves of a person daydreaming-has been demonstrated at NIST. The sensor could be battery-operated and could reduce the costs of noninvasive biomagnetic measurements such as fetal heart monitoring. The device also may have applications such as homeland security screening for explosives.

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Keywords: nist, mini-sensor, biomedical, security, applications, mini, sensor, application

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