A Compact, High Performance Atomic Magnetometer for Biomedical Applications
Instrumentation and Detectors
2015-06-16 v1 Medical Physics
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.
Cite
@article{arxiv.1307.2357,
title = {A Compact, High Performance Atomic Magnetometer for Biomedical Applications},
author = {Vishal K. Shah and Ronald T. Wakai},
journal= {arXiv preprint arXiv:1307.2357},
year = {2015}
}