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Chinese Journal of Lasers, Volume. 45, Issue 2, 207012(2018)

Progress in Biomagnetic Signal Measurements with Ultra-Sensitive Atomic Magnetometers

Wang Xiaofei1,2, Sun Xianping1, Zhao Xiuchao1, Zhu Maohua1,2, Ye Chaohui1, and Zhou Xin1、*
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  • 1[in Chinese]
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    AbstractGet PDF(in Chinese)
    Figures&Tables (10)
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    References (67)
    Cited By (2)
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    Figures & Tables(10)
    Schematic diagram of ultra-sensitive atomic magnetometer

    Fig. 1. Schematic diagram of ultra-sensitive atomic magnetometer

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    Schematic diagram of optical pumping

    Fig. 2. Schematic diagram of optical pumping

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    Schematic diagram of NMOR

    Fig. 3. Schematic diagram of NMOR

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    Schematic diagram of nerve impulse generating conduction current and volume current (electric signals arise from the volume current, while magnetic signals arise from the conduction current)

    Fig. 4. Schematic diagram of nerve impulse generating conduction current and volume current (electric signals arise from the volume current, while magnetic signals arise from the conduction current)

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    Magnetic field strength of biomagnetism

    Fig. 5. Magnetic field strength of biomagnetism

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    Example of MCG waveform

    Fig. 6. Example of MCG waveform

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    Schematic diagram of MCG and predicted MCG

    Fig. 7. Schematic diagram of MCG and predicted MCG

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    Schematic diagram of MEG

    Fig. 8. Schematic diagram of MEG

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    Schematic diagram of ultra-sensitive atomic magnetometer detecting animal nerve impulses

    Fig. 9. Schematic diagram of ultra-sensitive atomic magnetometer detecting animal nerve impulses

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    • Table 1. Amplitudes of various biomagnetic features obtained by atomic magnetometer

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      Table 1. Amplitudes of various biomagnetic features obtained by atomic magnetometer

      TypeFeatureDateAuthorDistance /mmField amplitude /pT
      MCGQSR2014Bison et al.—about 50[16]
      2010Knappe et al.50 (from the heart)5 (from the skin)about 180[44]
      2012Wyllie et al.76 (from the heart)10 (from the skin)about 40[45]
      fMCGQSR2012Wyllie et al.—about 1.5[17]
      2015Alem et al.4.5 (from the skin)about 40[46]
      2017Eswaran et al.—about 4[47]
      MEGEvoked response2006Xia et al.25 (from the scalp)about 1.2[18]
      SpontaneousEvoked response2012Sander et al.25 (from the source)about 0.5[48]about 2[48]
      2013Shah et al.5-25 (from the scalp)0.1-0.2[42]
      Evoked response2013Johnson et al.30 (from the scalp)about 0.2[19]
      2017Sheng et al.6 (from the scalp)about 1.2[49]
      2017Boto et al.6.5 (from the scalp)about 2[50]
      NerveNerve pulse2016Jensen et al.1.9about 24[51]
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    Wang Xiaofei, Sun Xianping, Zhao Xiuchao, Zhu Maohua, Ye Chaohui, Zhou Xin. Progress in Biomagnetic Signal Measurements with Ultra-Sensitive Atomic Magnetometers[J]. Chinese Journal of Lasers, 2018, 45(2): 207012

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    Paper Information

    Special Issue:

    Received: Sep. 6, 2017

    Accepted: --

    Published Online: Feb. 28, 2018

    The Author Email: Xin Zhou (xinzhou@wipm.ac.cn)

    DOI:10.3788/CJL201845.0207012

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology