Stability test results on the aluminum stabilized superconductor for the helical coils of LHD

Nagato Yanagi, Takashi Satow, Toshiyuki Mito, Shinsaku Imagawa, Kazuya Takahata, Akifumi Iwamoto, Hirotaka Chikaraishi, Satarou Yamaguchi, Sadao Satoh, Osamu Motojima, Soh Noguchi, Atsushi Ishiyama

    Research output: Contribution to journalArticle

    6 Citations (Scopus)

    Abstract

    Stability tests have been carried out on short samples of the aluminum/copper stabilized composite-type superconductors developed and used for the pool-cooled helical coils of the Large Helical Device. The waveform of the longitudinal voltage initiated by resistive heaters shows a short-time rise before reaching a final value, which seems to correspond to the diffusion process of transport current into the pure aluminum stabilizer. The propagation velocity has a finite value even for the transport current being lower than the recovery current, and it differs depending on the direction with respect to the transport current.

    Original languageEnglish
    Pages (from-to)1113-1116
    Number of pages4
    JournalIEEE Transactions on Applied Superconductivity
    Volume9
    Issue number2 PART 1
    DOIs
    Publication statusPublished - 1999

    Fingerprint

    stability tests
    Aluminum
    Superconducting materials
    coils
    aluminum
    Copper
    Recovery
    propagation velocity
    Composite materials
    Electric potential
    heaters
    waveforms
    recovery
    copper
    composite materials
    electric potential
    Direction compound

    ASJC Scopus subject areas

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

    Cite this

    Stability test results on the aluminum stabilized superconductor for the helical coils of LHD. / Yanagi, Nagato; Satow, Takashi; Mito, Toshiyuki; Imagawa, Shinsaku; Takahata, Kazuya; Iwamoto, Akifumi; Chikaraishi, Hirotaka; Yamaguchi, Satarou; Satoh, Sadao; Motojima, Osamu; Noguchi, Soh; Ishiyama, Atsushi.

    In: IEEE Transactions on Applied Superconductivity, Vol. 9, No. 2 PART 1, 1999, p. 1113-1116.

    Research output: Contribution to journalArticle

    Yanagi, N, Satow, T, Mito, T, Imagawa, S, Takahata, K, Iwamoto, A, Chikaraishi, H, Yamaguchi, S, Satoh, S, Motojima, O, Noguchi, S & Ishiyama, A 1999, 'Stability test results on the aluminum stabilized superconductor for the helical coils of LHD', IEEE Transactions on Applied Superconductivity, vol. 9, no. 2 PART 1, pp. 1113-1116. https://doi.org/10.1109/77.783493
    Yanagi, Nagato ; Satow, Takashi ; Mito, Toshiyuki ; Imagawa, Shinsaku ; Takahata, Kazuya ; Iwamoto, Akifumi ; Chikaraishi, Hirotaka ; Yamaguchi, Satarou ; Satoh, Sadao ; Motojima, Osamu ; Noguchi, Soh ; Ishiyama, Atsushi. / Stability test results on the aluminum stabilized superconductor for the helical coils of LHD. In: IEEE Transactions on Applied Superconductivity. 1999 ; Vol. 9, No. 2 PART 1. pp. 1113-1116.
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