Magnetic shielding for MRI superconducting magnets

A. Ishiyama, H. Hiroaka

研究成果: Article査読

25 被引用数 (Scopus)

抄録

This paper describes an optimal design of a highly homogeneous superconducting coil system with magnetic shielding for Magnetic Resonance Imaging (MRI). The presented optimal design method, which is originally proposed in our earlier papers, is a combination of the hybrid finite element and boundary element method for analysis of an axially symmetric nonlinear open boundary magnetic field problem, and the mathematical programming method for solving the corresponding optimization problem. In this paper, the multi-objective goal programming method and the nonlinear least squares method have been adopted. The optimal design results of 1.5- and 4.7-Tesla-magnet systems with different types of magnetic shielding for whole-body imaging are compared and the advantages of a combination of active and yoke shields are shown.

本文言語English
ページ(範囲)1692-1695
ページ数4
ジャーナルIEEE Transactions on Magnetics
27
2
DOI
出版ステータスPublished - 1991 3

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 電子工学および電気工学

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