KOREA BASIC SCIENCE INSTITUTE;INDUSTRY-ACADEMIC COOPERATION FOUNDATION, KUNSAN NATIONAL UNIVERSITY
发明人:
LEE SANG GAP,이상갑,JANG JAE YOUNG,장재영,HWANG YOUNG JIN,황영진,AHN MIN CHUL,안민철
申请号：
KR1020180137280
公开号：
KR1019959040000B1
申请日:
2018.11.09
申请国别(地区):
KR
年份:
2019
代理人:
摘要：
The present invention relates to a method for measuring spatial magnetic field distribution of a superconducting magnet. Provided in the present invention are a method for measuring spatial magnetic field distribution of a magnet and an apparatus for measuring spatial magnetic field distribution of a magnet using the same, which solve the problems of a conventional technology such as a magnetic resonance imaging (MRI) device or a nuclear magnetic resonance (NMR) spectrometer, which take a long time when measuring the spatial magnetic field distribution of a magnet to improve uniformity of the magnetic field of an apparatus using the magnet, and could not measure the same when a magnetic field utilization space around the magnet is occupied by a human body or an object, and could inflict a harmful effect on a human body because high-power RF is directly applied to the human body for measurement. Therefore, the present invention guarantees safety by preventing the high-power RF from being applied to the human body when measuring the spatial magnetic field distribution of a magnet. Furthermore, the spatial magnetic field distribution of a magnet can be measured and the uniformity of the magnetic field thereof can be calculated in a rapid and precise manner even when the magnetic field space is occupied by a human body or an object. In addition, even when the uniformity of the magnetic field changes during filming, the uniformity of the magnetic field at the central portion can be measured, thereby correcting the uniformity of the magnetic field in real time.본 발명은 자석(superconduction magnet)의 공간 자기장 분포를 측정하기 위한 방법에 관한 것으로, 본 발명에 따르면, 예를 들면, 자기공명 영상장치(MRI)나 핵자기공명 분광장치(NMR)와 같이, 자석을 이용한 장치의 자기장 균일도를 개선하기 위하여 자석의 공간 자기장 분포를 측정시 측정시간이 오래 걸리고, 자석 주위의 자기장 활용공간을 인체나 물체가 점유하고 있는 동안에는 측정이 불가능하며, 측정을 위해 인체에 직접 고출력 RF가 인가됨으로 인해 인체에 유해한 영향을 미칠 수 있는 문제점이 있었던 종래기술의 문제점을 해결하여, 자석의 공간 자기장 분포 측정시 고출력 RF가 인체에 인가되지 않도록 하는 것에 의해 안전성을 확보하는 동시에, 인체나 물체가 자기장 공간을 점유하고 있는 경우에도 신속하고 정확하게 자석의 공간 자
