Simultaneous multilocation and wide-area measurements with an optically pumped atomic magnetometer toward biomagnetic-field measurements

2017 Fiscal Year Final Research Report

• Project/Area Number: 15K06106
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Measurement engineering
• Research Institution: Kyoto University
• Principal Investigator: Ito Yosuke 京都大学, 工学研究科, 助教 (20589189)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: 光ポンピング / 原子磁気センサ / 多点計測

Outline of Final Research Achievements

We suggested the novel methods inspired by MRI and CT to realize simultaneous mulitilocation measurements with an optically pumped atomic magnetometer (OPAM) toward biomagnetic-field measurements. For the MRI-like method, the pump beams of the OPAM was modulated to encode the signals. We successfully demonstrated simultaneous multilocation measurements by this technique. For the CT-like method, first of all, we fabricated a new multi-channel probe-beam detector at a reasonably low cost. This detector made us acquire 10 signals simultaneously. With this detector, we measured the magnetic-field distribution generated from a loop coil and successfully reconstructed the field map by the signal processing.

Free Research Field

生体医工学