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First results of the toroidal divertor experiment on the TPE-2M reversed field pinch

K. Hattori, K. Hayase, Y. Sato1995年被引用 4Nuclear FusionIF 3出版社

A reversed field pinch configuration with a quadra-null toroidal divertor has been sustained for a much longer time than the magnetic diffusion time on the TPE-2M device. By applying toroidal divertor fields, the plasma resistance has been reduced by 40% in low plasma current operations (40-55 kA), along with a decrease in the line emission of light impurities and limiter materials (molybdenum). Direct measurement of internal magnetic fields by inserted magnetic probes has shown that a separatrix exists within the limiter radius. Though the behaviour of the slow magnetic fluctuations has not deteriorated, fast and spiky m=0 mode fluctuations have been excited, especially near the reversal surface

日本語訳

逆転磁場ピンチ配位と四重極トロイダルダイバータを備えた装置TPE-2Mにおいて、磁気拡散時間をはるかに超える長時間にわたりプラズマが維持された。トロイダルダイバータ磁場を印加することにより、低プラズマ電流運転(40-55 kA)においてプラズマ抵抗が40%低減し、それに伴い軽不純物およびリミター材料(モリブデン)の線発光も減少した。挿入型磁気プローブによる内部磁場の直接測定により、リミター半径内にセパラトリクスが存在することが示された。低速磁気揺動の挙動は悪化しなかったものの、特に反転面近傍において、高速でスパイク状のm=0モード揺動が励起された。

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DivertorReversed field pinch
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