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Development of key fusion technologies at JET

JET Team (prepared by M.A. Pick)2000年被引用 3Nuclear FusionIF 3出版社

The recent operational phase in JET in which DT fuel was used (DTE1) resulted in record breaking fusion performance. In addition to important contributions in plasma physics, the JET Team also made major advances in demonstrating the viability of some of the key technologies required for the realization of future fusion power. Two of the most important technological areas which have been successfully demonstrated in JET are the ITER scale tritium processing plant and the exchange of the divertor and maintenance of the interior of JET by totally remote means. The experiment also provided the first data on tritium retention and co-deposition in a diverted tokamak. Of the 35 g of tritium injected into the JET torus, about 6 g remained in the tokamak, residing mainly on cool surfaces at the inboard divertor side. The precise, safe and timely execution of the remote handling shutdown proved that the design, function, performance and operational methodology of the remote handling equipment prepared over the years at JET are appropriate for the successful and rapid replacement of components in an activated tokamak environment.

日本語訳

DT燃料が使用されたJETにおける最近の運転フェーズ(DTE1)は、記録破りの核融合性能をもたらした。プラズマ物理学への重要な貢献に加えて、JETチームは将来の核融合発電の実現に必要ないくつかの主要技術の実用性を実証する上で大きな進展も遂げた。JETで首尾よく実証された最も重要な技術分野の2つは、ITER規模のトリチウム処理プラントと、完全に遠隔手段によるJETのダイバータ交換及び内部の保守である。この実験はまた、ダイバータ付きトカマクにおけるトリチウム保持と共堆積に関する最初のデータを提供した。JETトーラスに注入された35 gのトリチウムのうち、約6 gがトカマク内に残留し、主に内側ダイバータ側の低温表面に存在していた。遠隔操作シャットダウンの正確かつ安全で時宜を得た実行は、長年にわたってJETで準備されてきた遠隔操作機器の設計、機能、性能、および運用方法が、活性化されたトカマク環境におけるコンポーネントの迅速かつ成功裏の交換に適していることを実証した。

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