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Phys Med Biol. 2013 Nov 21;58(22):8153-61.

A compact, high performance atomic magnetometer for biomedical applications.

Abstract

We present a highly sensitive room-temperature atomic magnetometer (AM), designed for use in biomedical applications. The magnetometer sensor head is only 2 × 2 × 5 cm3 and is constructed using readily available, low-cost optical components. The magnetic field resolution of the AM is <10 fT Hz–1/2, 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 and magnetocardiography recordings can be obtained using our AM.

PMID:
24200837
PMCID:
PMC3971838
DOI:
10.1088/0031-9155/58/22/8153
[Indexed for MEDLINE]
Free PMC Article

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