Cross-validation of microfabricated atomic magnetometers with superconducting quantum interference devices for biomagnetic applications

نویسندگان

  • Svenja Knappe
  • Tilmann H. Sander
  • Olaf Kosch
  • Frank Wiekhorst
  • John Kitching
  • Lutz Trahms
چکیده

We compare the performance of a chip-scale atomic magnetometer CSAM with that of a superconducting quantum interference device SQUID sensor in two biomedical applications. Magnetocardiograms MCGs of healthy human subjects were measured simultaneously by a CSAM and a multichannel SQUID sensor in a magnetically shielded room. The typical features of MCGs are resolved by the CSAM, matching the SQUID results. Magnetorelaxometry MRX signals of iron nanoparticles were also obtained with the CSAM and compared to similar measurements with a SQUID. © 2010 American Institute of Physics. doi:10.1063/1.3491548

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تاریخ انتشار 2010