Magnetic shielding for MRI superconducting magnets

Atsushi Ishiyama, H. Hirooka

    研究成果: Article

    23 引用 (Scopus)

    抄録

    An optimal design is presented of a highly homogeneous superconducting coil system with magnetic shielding for magnetic resonance imaging (MRI). The optimal design method 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 a mathematical programming method for solving the corresponding optimization problem. The multiobjective goal programming method and the nonlinear least-squares method are adopted. The optimal design results of 1.5- and 4.7-T-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.

    元の言語English
    ページ(範囲)1692-1695
    ページ数4
    ジャーナルIEEE Transactions on Magnetics
    27
    発行部数2 pt III
    DOI
    出版物ステータスPublished - 1991 3

    Fingerprint

    Magnetic shielding
    magnetic shielding
    Superconducting magnets
    superconducting magnets
    Magnetic resonance
    magnetic resonance
    Imaging techniques
    mathematical programming
    Mathematical programming
    boundary element method
    least squares method
    Boundary element method
    programming
    Magnets
    magnets
    coils
    Magnetic fields
    optimization
    magnetic fields
    Optimal design

    ASJC Scopus subject areas

    • Electrical and Electronic Engineering
    • Physics and Astronomy (miscellaneous)

    これを引用

    Magnetic shielding for MRI superconducting magnets. / Ishiyama, Atsushi; Hirooka, H.

    :: IEEE Transactions on Magnetics, 巻 27, 番号 2 pt III, 03.1991, p. 1692-1695.

    研究成果: Article

    Ishiyama, Atsushi ; Hirooka, H. / Magnetic shielding for MRI superconducting magnets. :: IEEE Transactions on Magnetics. 1991 ; 巻 27, 番号 2 pt III. pp. 1692-1695.
    @article{c04b6fb4a03f4ef4a3a087df8b3a0f97,
    title = "Magnetic shielding for MRI superconducting magnets",
    abstract = "An optimal design is presented of a highly homogeneous superconducting coil system with magnetic shielding for magnetic resonance imaging (MRI). The optimal design method 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 a mathematical programming method for solving the corresponding optimization problem. The multiobjective goal programming method and the nonlinear least-squares method are adopted. The optimal design results of 1.5- and 4.7-T-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.",
    author = "Atsushi Ishiyama and H. Hirooka",
    year = "1991",
    month = "3",
    doi = "10.1109/20.133514",
    language = "English",
    volume = "27",
    pages = "1692--1695",
    journal = "IEEE Transactions on Magnetics",
    issn = "0018-9464",
    publisher = "Institute of Electrical and Electronics Engineers Inc.",
    number = "2 pt III",

    }

    TY - JOUR

    T1 - Magnetic shielding for MRI superconducting magnets

    AU - Ishiyama, Atsushi

    AU - Hirooka, H.

    PY - 1991/3

    Y1 - 1991/3

    N2 - An optimal design is presented of a highly homogeneous superconducting coil system with magnetic shielding for magnetic resonance imaging (MRI). The optimal design method 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 a mathematical programming method for solving the corresponding optimization problem. The multiobjective goal programming method and the nonlinear least-squares method are adopted. The optimal design results of 1.5- and 4.7-T-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.

    AB - An optimal design is presented of a highly homogeneous superconducting coil system with magnetic shielding for magnetic resonance imaging (MRI). The optimal design method 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 a mathematical programming method for solving the corresponding optimization problem. The multiobjective goal programming method and the nonlinear least-squares method are adopted. The optimal design results of 1.5- and 4.7-T-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.

    UR - http://www.scopus.com/inward/record.url?scp=0026124131&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=0026124131&partnerID=8YFLogxK

    U2 - 10.1109/20.133514

    DO - 10.1109/20.133514

    M3 - Article

    AN - SCOPUS:0026124131

    VL - 27

    SP - 1692

    EP - 1695

    JO - IEEE Transactions on Magnetics

    JF - IEEE Transactions on Magnetics

    SN - 0018-9464

    IS - 2 pt III

    ER -