MRI 마그네트용 보정코일 설계

Design of the Shimming Coils for MRI Magnet

  • 배준한 (한국전기연구원 초전도응용연구그룹) ;
  • 고락길 (한국전기연구원 초전도응용연구그룹 연구원) ;
  • 진홍범 (한국전기연구원 초전도응용연구그룹) ;
  • 심기덕 (한국전기연구원 초전도응용연구그룹 연구원) ;
  • 권영길 (한국전기연구원 초전도응용연구그룹 그룹장) ;
  • 류강식 (차세대 초전도응용기술개발 사업단장)
  • 발행 : 2001.12.01

초록

This paper describes the general and efficient design method of an axial and a radial shim coils to correct field impurities of various harmonic orders in the imaging volume of Magnetic Resonance Imaging magnet. Shim coils are optimized by BCLSF subroutine of IMSL, which is the well-known commercial package for optimization, aiming at maximizing the magnitude of the desired field component as well as minimizing other field components. In order to evaluate their effect, the developed method was applied to the MRI magnet constructed in KERI.

키워드

참고문헌

  1. F. Romeo, et. al., 'Magnetic Field Profiling: Analysis and Correcting Coil Design', Magnetic Rosonance in Medicine, 1, pp. 44-65, 1984 https://doi.org/10.1002/mrm.1910010107
  2. W. A. Anderson, 'Electrical Current Shims for Correcting Magnetic Field', The Review of Scientific Instruments, vol. 32, no. 3, pp. 241-250, 1961 https://doi.org/10.1063/1.1717338
  3. 한국전기연구원, '고자장 자기공명영상 장치 및 초전도자석 개발(2차년도 연차실적.계획서)', 선도기술.의료공학기술개발사업, 보건복지부, 2000. 12