Evaluation of irregular magnetic field generated by screening current in REBCO coils for high accuracy field

Ayako Matsumi, Hiroshi Ueda, So Noguchi, Tao Wang, Atsushi Ishiyama, Hiroshi Miyazaki, Taizo Tosaka, Shunji Nomura, Tsutomu Kurusu, Shinichi Urayama, Hidenao Fukuyama

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    7 Citations (Scopus)

    Abstract

    In recent years, research and development of applications for a high field magnet wound with a REBCO tape into nuclear magnetic resonance and magnetic resonance imaging have been carried out. These applications require a very high accuracy field, that is, the spatial uniform and temporally stable field. However, in the REBCO coils, the irregular magnetic field is generated by the screening current, which is remarkably induced by the radial component of the magnetic field in a REBCO tape. Therefore, a nonconventional approach is required for the reduction or correction of the irregular magnetic field generated by the screening current in the stage of design for a high-accuracy-field REBCO coil. The prediction and improvement of the irregular magnetic field generated by the screening current is a serious issue for the development and design of REBCO coils and correction shims.

    Original languageEnglish
    Article number7422002
    JournalIEEE Transactions on Applied Superconductivity
    Volume26
    Issue number4
    DOIs
    Publication statusPublished - 2016 Jun 1

    Keywords

    • and field homogeneity
    • high accuracy field
    • High-temperature superconductors
    • irregular magnetic field
    • screening current
    • three-dimensional electromagnetic field analysis

    ASJC Scopus subject areas

    • Electrical and Electronic Engineering
    • Condensed Matter Physics
    • Electronic, Optical and Magnetic Materials

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    Matsumi, A., Ueda, H., Noguchi, S., Wang, T., Ishiyama, A., Miyazaki, H., Tosaka, T., Nomura, S., Kurusu, T., Urayama, S., & Fukuyama, H. (2016). Evaluation of irregular magnetic field generated by screening current in REBCO coils for high accuracy field. IEEE Transactions on Applied Superconductivity, 26(4), [7422002]. https://doi.org/10.1109/TASC.2016.2535966