Open AccessVector magnetocardiography measurement with a compact elliptically polarized laser-pumped magnetometer
Author(s) -
Wenqiang Zheng,
Shengran Su,
Guoyi Zhang,
Xin Bi,
Qiang Lin
Publication year - 2020
Publication title -
biomedical optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.362
H-Index - 86
ISSN - 2156-7085
DOI - 10.1364/boe.380314
Subject(s) - magnetocardiography , magnetometer , biomagnetism , physics , optics , elliptical polarization , magnetic field , laser , nuclear magnetic resonance , linear polarization , quantum mechanics
We report on a practical approach to vector biomagnetism measurement with an optically pumped magnetometer for measuring total magnetic field intensity. Its application to vector magnetocardiography is experimentally demonstrated with a compact elliptically polarized laser-pumped M x atomic magnetometer (EPMx OPM). The approach is proved to be effective and able to provide more complete cardiac magnetic information. The cardiac magnetic vectors are displayed in three-dimensional space in the form of magnetic vector loops. The sensor configuration and the image processing method here are expected to form further values, especially for multi-channel vector biomagnetism measurement, clinical diagnosis, and field source reconstruction.