The Transactions of the Korean Institute of Electrical Engineers (대한전기학회논문지)

The Korean Institute of Electrical Engineers (대한전기학회)
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A design of actively shielded superconducting MRI magnet

능동차폐형 초전도 MRI 마그네트의 설계

  • 진홍범 (한국전기연구소 초전도응용연구실) ;
  • 류강식 (한국전기연구소 초전도응용연구실) ;
  • 송준태 (성균관대 공대 전기공학과)
  • Published : 1996.01.01
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Abstract

Magnetic field theories for the design of highly homogeneous magnet are introduced and a nonlinear optimization method for the design of actively shielded superconducting magnet is presented. The presented design method can optimize both main coil and shielding coil simultaneously by setting constraints on stray field intensity at a specified distance from the magnet center. A 2-Tesla actively shielded superconducting magnet, with 90cm bore diameter, is designed using the presented method. The field homogeneity is 2ppm/30cm DSV and the 5 gauss stray field contour is within 4m axially and 3m radially from the magnet center. (author)., 7 refs., 6 figs., 3 tabs.

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