Ultrahigh sensitivity optically pumped atomic magnetometer

• KOBAYASHI Tetsuo

  Department of Electrical Engineering, Graduate School of Engineering, Kyoto University

Bibliographic Information

Other Title

• 高感度光ポンピング原子磁気センサ
• コウカンド ヒカリ ポンピング ゲンシ ジキ センサ

Abstract

In recent years, optically pumped atomic magnetometers operating under spin-exchange relaxation-free conditions have reached sensitivities comparable to and even surpassing those of SQUID-based magnetometers. In this paper, we describe the principle of atomic magnetometers and results of biomagnetic field measurements. To test the performance of our newly developed atomic magnetometer, we made a phantom that models neuronal currents in the brain and measured tiny magnetic fields. We demonstrated measurements of magnetic field distributions with the phantom scanning two-dimensionally above the magnetometer. Finally, we describe the feasibility of atomic magnetometers as magnetic sensors for measuring MEG and MRI signals simultaneously.

Journal

• Oyo Buturi

  Oyo Buturi 80 (3), 211-215, 2011-03-10

  The Japan Society of Applied Physics

Keywords

• atomic magnetometer
• optical pumping
• ultra-low field MRI
• magnetoencephalography
• magnetocardiography

Details

• CRID: 1390001277357301248
• NII Article ID: 10027785344
• NII Book ID: AN00026679
• DOI: 10.11470/oubutsu.80.3_211
• ISSN: 21882290
• ISSN: 03698009
• NDL BIB ID: 11028962
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I11028962
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed