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    BIOMAGNETIC RESONANCE DEVICE AND MEASURING METHOD THEREFOR
    14.
    发明申请
    BIOMAGNETIC RESONANCE DEVICE AND MEASURING METHOD THEREFOR 有权
    生物共振装置及其测量方法

    公开(公告)号：US20140343397A1

    公开(公告)日：2014-11-20

    申请号：US14446764

    申请日：2014-07-30

    Applicant: Korea Research Institute of Standards and Science

    Inventor： Kiwoong Kim ,  Yong-ho Lee ,  Seong-Joo Lee ,  Kwon-Kyu Yu

    IPC: G01R33/385 ,  A61B5/055 ,  A61B5/05 ,  G01R33/48

    CPC classification number: G01R33/385 ,  A61B5/05 ,  A61B5/055 ,  G01R33/26 ,  G01R33/326 ,  G01R33/445 ,  G01R33/48 ,  G01R33/4806

    Abstract: Provided are an ultra-low-field nuclear magnetic resonance device and an ultra-low-field nuclear magnetic resonance measuring method. The method includes applying a first measurement bias magnetic field corresponding to an excitation frequency of a coherent biomagnetic field generated in association with the electrophysiological activity of human body organs, applying a second measurement bias magnetic field having the same direction as the first measurement bias magnetic field and having a different magnitude than the first measurement bias magnetic field, and measuring a magnetic resonance signal generated in the human body by using magnetic field measuring means.

    Abstract translation: 提供了超低场核磁共振装置和超低场核磁共振测量方法。 该方法包括：对应于与人体器官的电生理活动相关联产生的相干生物磁场的激发频率对应的第一测量偏置磁场，施加与第一测量偏置磁场相同方向的第二测量偏置磁场 并且具有与第一测量偏置磁场不同的幅度，并且通过使用磁场测量装置来测量在人体中产生的磁共振信号。

    Atomic magnetometer and operating method of the same
    16.
    发明授权
    Atomic magnetometer and operating method of the same 有权

    公开(公告)号：US09927501B2

    公开(公告)日：2018-03-27

    申请号：US14573718

    申请日：2014-12-17

    Applicant: Korea Research Institute of Standards and Science

    Inventor： Kiwoong Kim ,  Hyun-joon Lee ,  Jeong-Hyun Shim

    IPC: G01R33/26 ,  G01R33/032

    CPC classification number: G01R33/26 ,  G01R33/032

    Abstract: Provided are an atomic magnetometer and an operating method of the same. The atomic magnetometer includes a vapor cell receiving a circularly polarized pump beam and a linearly polarized probe beam and containing an alkali metal vapor, a detector adapted to receive the probe beam passing through the vapor cell to measure magneto-optical rotation of the probe beam, a feedback coil to establish a negative feedback magnetic field signal orthogonal to a first plane defined by traveling directions of the probe beam and the pump beam and provide the negative feedback magnetic field signal to the vapor cell, and a feedback amplifier adapted to provide feedback current to the feedback coil such that the negative feedback magnetic field proportional to a measurement magnetic field is established. The measurement magnetic field of a measurement target provides magneto-optical rotation of the probe beam in the vapor cell.

    LOW MAGNETIC FIELD, ULTRA-LOW MAGNETIC FIELD NUCLEAR MAGNETIC RESONANCE AND MAGNETIC RESONANCE IMAGE APPARATUS
    18.
    发明申请
    LOW MAGNETIC FIELD, ULTRA-LOW MAGNETIC FIELD NUCLEAR MAGNETIC RESONANCE AND MAGNETIC RESONANCE IMAGE APPARATUS 审中-公开
    低磁场，超低磁场核磁共振和磁共振图像装置

    公开(公告)号：US20160209482A1

    公开(公告)日：2016-07-21

    申请号：US14618535

    申请日：2015-02-10

    Applicant: Korea Research Institute of Standards and Science

    Inventor： Seong-min Hwang ,  Kiwoong Kim ,  Kwon-Kyu Yu ,  Seong-Joo Lee ,  Jeong-Hyun Shim

    IPC: G01R33/44 ,  G01R33/3815 ,  G01R33/32

    CPC classification number: G01R33/445 ,  G01R33/326 ,  G01R33/34023 ,  G01R33/3815

    Abstract: Provided is a low magnetic field and ultra-low magnetic field NMR and MRI apparatus. The low magnetic field and ultra-low magnetic field NMR and MRI apparatus includes a SQUID sensor and a prepolarization magnetic field coil. The prepolarization magnetic field coil generates a prepolarization magnetic field to polarize a sample. The prepolarization magnetic coil generates a counter pulse in a direction opposite to that of the prepolarization magnetic field immediately before or immediately after the prepolarization magnetic field is generated. The counter pulse demagnetizes wanted magnetization including that of the prepolarization magnetic field coil itself.

    Abstract translation: 提供了低磁场和超低磁场NMR和MRI装置。 低磁场和超低磁场NMR和MRI装置包括SQUID传感器和预极化磁场线圈。 预极化磁场线圈产生极化磁极以使样品极化。 前极化磁线圈在产生前极化磁场之前或之后产生与反极化磁场相反方向的计数脉冲。 计数脉冲使包括预极化磁场线圈本身的所需磁化消磁。

    ATOMIC MAGNETOMETER AND OPERATING METHOD OF THE SAME
    19.
    发明申请
    ATOMIC MAGNETOMETER AND OPERATING METHOD OF THE SAME 有权
    原子磁力计及其操作方法

    公开(公告)号：US20160116553A1

    公开(公告)日：2016-04-28

    申请号：US14573718

    申请日：2014-12-17

    Applicant: Korea Research Institute of Standards and Science

    Inventor： Kiwoong Kim ,  Hyun-joon Lee ,  Jeong-Hyun Shim

    IPC: G01R33/26 ,  G01R33/032

    CPC classification number: G01R33/26 ,  G01R33/032

    Abstract: Provided are an atomic magnetometer and an operating method of the same. The atomic magnetometer includes a vapor cell receiving a circularly polarized pump beam and a linearly polarized probe beam and containing an alkali metal vapor, a detector adapted to receive the probe beam passing through the vapor cell to measure magneto-optical rotation of the probe beam, a feedback coil to establish a negative feedback magnetic field signal orthogonal to a first plane defined by traveling directions of the probe beam and the pump beam and provide the negative feedback magnetic field signal to the vapor cell, and a feedback amplifier adapted to provide feedback current to the feedback coil such that the negative feedback magnetic field proportional to a measurement magnetic field is established. The measurement magnetic field of a measurement target provides magneto-optical rotation of the probe beam in the vapor cell.

    Abstract translation: 提供了一种原子磁强计及其操作方法。 原子磁强计包括接收圆偏振泵浦光束和线性偏振探测光束并含有碱金属蒸气的蒸汽单元，适于接收通过蒸气室的探测光束以测量探测光束的磁旋转的检测器， 反馈线圈，用于建立与由所述探测光束和所述泵浦光束的行进方向限定的第一平面正交的负反馈磁场信号，并向所述蒸汽单元提供所述负反馈磁场信号;以及反馈放大器，其适于提供反馈电流 到反馈线圈，使得与测量磁场成比例的负反馈磁场被建立。 测量对象的测量磁场提供了探测光束在蒸气室中的磁光旋转。

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