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Present status of superconducting magnets design for the Large Helical Device

T. Satow, J. Yamamoto, S. Imagawa, H. Tamura, LHD Design Group1993年Fusion Engineering and DesignIF 1.7出版社

AbstractThe Large Helical Device is a nuclear fusion experimental device with superconducting magnets. Designs for constructing the helical and poloidal coils, the cryostat and the helical-coil winding machine are now being carried out. The helical coils have a magnetic energy of 1600 MJ and an overall current density of 53 A/mm2 in phase-II. Its rated current is 21.2 kA in phase-I, and the maximum magnetic field in the helical-coil winding in phase-I is calculated to be 6.9 T. Three pairs of poloidal coils are cooled by forced-flow supercritical helium because of the requirement of no metal coil vessel. The magnetomotive force of one inner vertical poloidal coil (IV coil) is 5.0 MA, and its stored energy is 80 MJ. The maximum magnetic field of the two IV coils only is calculated to be 5.8 T. The type of superconductor for the IV coils is a cable-in-conduit conductor.

日本語訳

大型ヘリカル装置は、超伝導磁石を備えた核融合実験装置である。ヘリカルコイル、ポロイダルコイル、クライオスタット、およびヘリカルコイル巻線機の設計が現在進められている。ヘリカルコイルは、第II期において磁気エネルギー1600MJ、全体の電流密度53A/mm²を有する。その定格電流は第I期において21.2kAであり、ヘリカルコイル巻線における最大磁場は第I期において6.9Tと計算される。3対のポロイダルコイルは、金属製コイル容器を不要とする要求のため、強制流動超臨界ヘリウムによって冷却される。内側ポロイダルコイル(IVコイル)1個の起磁力は5.0MAであり、その蓄積エネルギーは80MJである。2個のIVコイルのみの最大磁場は5.8Tと計算される。IVコイルの超伝導体の種類は、ケーブル・イン・コンジット導体である。

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lhd高精度(タイトル一致)

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Helical deviceSuperconducting magnet
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