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Achieved capability of the superconducting magnet system for the Large Helical Device

T. Satow, S. Imagawa, N. Yanagi, K. Takahata, T. Mito, S. Yamada, H. Chikaraishi, A. Nishimura, I. Ohtake, Y. Nakamura2001年被引用 3Nuclear FusionIF 3出版社

The Large Helical Device (LHD) is a plasma physics experimental device with a magnetic stored energy of 960 MJ, consisting of two superconducting (SC) helical coils and six SC poloidal coils. The trial operation and the first plasma discharge of the Phase I project for LHD were completed on 31 March 1998 as initially planned. The second experimental campaign was conducted with additional heating using two NBI devices. The third campaign started in June 1999 and was completed in January 2000. Many plasma heating tests with a plasma field of up to 2.90 T were carried out. Major test results on the SC magnet system for LHD are as follows: (1) The LHD cryogenic system was successfully operated for 13 400 h and proved its high reliability. (2) A central field of 2.91 T at a radius of 3.60 m was achieved at an inner helical coil current of 11.08 kA, a middle helical coil current of 11.83 kA and an outer helical coil current of 12.02 kA. (3) All six poloidal coils were excited stably. (4) Nine flexible SC bus lines with a total length of 497 m were operated stably and safely.

日本語訳

大型ヘリカル装置(LHD)は、磁気蓄積エネルギー960 MJを有し、2つの超伝導(SC)ヘリカルコイルと6つのSCポロイダルコイルから構成されるプラズマ物理実験装置である。LHDのフェーズI計画の試運転および最初のプラズマ放電は、当初の計画通り1998年3月31日に完了した。第2次実験キャンペーンは、2台のNBI装置を用いた追加加熱により実施された。第3次キャンペーンは1999年6月に開始され、2000年1月に完了した。最大2.90 Tのプラズマ磁場での多くのプラズマ加熱試験が実施された。LHDのSC磁石システムに関する主要な試験結果は以下の通りである:(1) LHDの低温システムは13 400時間にわたり正常に運転され、その高い信頼性が実証された。(2) 半径3.60 mにおける中心磁場2.91 Tが、内側ヘリカルコイル電流11.08 kA、中間ヘリカルコイル電流11.83 kA、外側ヘリカルコイル電流12.02 kAで達成された。(3) 6つのポロイダルコイルすべてが安定に励磁された。(4) 全長497 mの9本のフレキシブルSCバスラインが安定かつ安全に運転された。

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lhd高精度(タイトル一致)

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Helical deviceSuperconducting magnetMagnet system
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