公开(公告)号：US20190082997A1

公开(公告)日：2019-03-21

申请号：US16085488

申请日：2017-04-03

Applicant: KOREA RESEARCH INSTITUTE OF STANDARDS AND SCIENCE

Inventor： Seong-Joo LEE ,  Kiwoong KIM ,  Jeong-Hyun SHIM ,  Kwon-Kyu YU ,  Seong-min HWANG

IPC: A61B5/055 ,  A61B5/00 ,  G01R33/24 ,  G01R33/44 ,  G01R33/48

Abstract: Provided are an ultra-low field nuclear magnetic resonance device and a method for measuring an ultra-low field nuclear resonance image. The ultra-low field nuclear magnetic resonance device includes an AC power supply configured to supply a current to a measurement target in such a manner the current flows to the measurement target, magnetic field measurement means disposed adjacent to the measurement target, and measurement bias magnetic field generation means configured to apply a measurement bias magnetic field corresponding to a proton magnetic resonance frequency of the measurement target. A vibration frequency of the AC power supply matches the proton magnetic resonance frequency of the measurement target, and the magnetic field measurement means measures a nuclear magnetic resonance signal generated from the measurement target.

公开(公告)号：US20130278265A1

公开(公告)日：2013-10-24

申请号：US13921724

申请日：2013-06-19

Applicant: Korea Research Institute of Standards and Science

Inventor： Ki Woong KIM ,  Seong-Joo LEE ,  Chan Seok KANG ,  Seong-min HWANG ,  Yong-Ho LEE

IPC: G01R33/36

CPC classification number: G01R33/36 ,  G01R33/282 ,  G01R33/307 ,  G01R33/326 ,  G01R33/3607 ,  G01R33/445 ,  G01R33/4826 ,  G01R33/62

Abstract: Provided are a low-field nuclear magnetic resonance device and a low-field nuclear magnetic resonance method. The low-field nuclear magnetic resonance device includes a dynamic nuclear polarization (DNP) amplification unit to amplify the nuclear polarization of hydrogen atoms of water using a DNP-possible substance (DNP substance) to provide the amplified nuclear polarization to a measurement target, a sensor unit to measure a magnetic resonance signal of the measurement target using a SQUID sensor or an optically-pumped atomic magnetometer, and a measurement field coil to apply a measurement field to the measurement target. The DNP amplification unit is separated from the measurement target, the sensor unit, and the measurement field coil.

Abstract translation: 提供了低场核磁共振装置和低场核磁共振方法。 低场核磁共振装置包括动态核极化（DNP）放大单元，以使用DNP可能物质（DNP物质）放大氢原子的核极化，以将放大的核极化提供给测量目标， 传感器单元，使用SQUID传感器或光泵浦原子磁力计测量测量对象的磁共振信号，以及测量场线圈，以将测量场应用于测量对象。 DNP放大单元与测量对象，传感器单元和测量场线圈分离。

公开(公告)号：US20130271145A1

公开(公告)日：2013-10-17

申请号：US13909564

申请日：2013-06-04

Applicant: KOREA RESEARCH INSTITUTE OF STANDARDS AND SCIENCE

Inventor： Seong-min HWANG ,  Kiwoong KIM ,  Jin Mok KIM ,  Yong-Ho LEE ,  Chan Seok KANG ,  Kwon Kyu YU ,  Seong-Joo LEE

IPC: G01R33/421

CPC classification number: G01R33/421 ,  A61B5/0046 ,  A61B5/055 ,  G01R33/445

Abstract: Provided are an apparatus and a method for canceling magnetic fields. The apparatus includes a magnetic field canceling coil disposed adjacent to an inner wall of a magnetic shield room to surround the entire inner space or a portion of an inner space of the magnetic shield room; and a magnetic field canceling coil driver to supply current to the magnetic field canceling coil. The magnetic field canceling coil cancels a prepolarization magnetic field established on the wall of the magnetic shield room by a prepolarization coil disposed in the center of the magnetic shield room to minimize magnetic interference caused by the magnetic shield room.

Abstract translation: 提供了一种抵消磁场的装置和方法。 该装置包括一个与磁屏蔽室的内壁邻接设置的磁场消除线圈，以围绕磁屏蔽室的整个内部空间或内部空间的一部分; 以及用于向磁场消除线圈提供电流的磁场消除线圈驱动器。 磁场消除线圈通过设置在磁屏蔽室的中心的预极化线圈抵消在磁屏蔽室的壁上建立的前极化磁场，以最小化由磁屏蔽室引起的磁干扰。