Experimental verification and evaluation of a scalar optically pumped magnetometer using RF pulses

DOI
  • Hori Takuma
    Graduate school of Engineering, University of Kyoto, Kyoto, Japan
  • Goto Tatsuya
    Graduate school of Engineering, University of Kyoto, Kyoto, Japan
  • Ito Yosuke
    Graduate school of Engineering, University of Kyoto, Kyoto, Japan
  • Kobayashi Tetsuo
    Graduate school of Engineering, University of Kyoto, Kyoto, Japan

Bibliographic Information

Other Title
  • RFパルスを用いたスカラー型光ポンピング磁気センサの原理実証に向けた実験及びその性能評価

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Description

<p>Optically pumped magnetometers (OPMs) are alternative sensors to superconducting quantum interference devices detecting extremely weak magnetic fields. They offer advantages such as small size and flexible arrangement. However, their limited dynamic range restricts their use in high-performance magnetic shields against environmental magnetic noise. Recently, scalar OPMs have been studied due to their wide dynamic range and the feasibility of unshielded biomagnetic field measurements. In this study, we theoretically and experimentally investigated the scalar OPMs using RF pulses. According to the experiments, the noise floor was 700 pT/Hz1/2. Although the sensitivity was not sufficient to biomagnetic field measurements, the features of this OPM leads to applications of unshielded magnetoencephalography (MEG) by performing gradiometer configuration.</p>

Journal

Details 詳細情報について

  • CRID
    1390289765041449344
  • NII Article ID
    130008105556
  • DOI
    10.11239/jsmbe.annual59.831
  • ISSN
    18814379
    1347443X
  • Text Lang
    ja
  • Data Source
    • JaLC
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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