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arXiv · 1307.2357

A Compact, High Performance Atomic Magnetometer for Biomedical Applications

Vishal K. Shah·Ronald T. Wakai
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Abstract

We present a highly sensitive room-temperature atomic magnetometer (AM), designed for use in biomedical applications. The magnetometer sensor head is only 2x2x5 cm^3 and it is constructed using readily available, low-cost optical components. The magnetic field resolution of the AM is <10 fT/sqrt(Hz), which is comparable to cryogenically cooled superconducting quantum interference device (SQUID) magnetometers. We present side-by-side comparisons between our AM and a SQUID magnetometer, and show that equally high quality magnetoencephalography (MEG) and magnetocardiography (MCG) recordings can be obtained using our AM.

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Vishal K. Shah, Ronald T. Wakai. 2013-07-09. A Compact, High Performance Atomic Magnetometer for Biomedical Applications. https://doi.org/10.1088/0031-9155%2F58%2F22%2F8153

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