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Plasma-circuit interactions in rotating magnetic field current drive

W N Hugrass, T Okada, M Ohnishi2008年Plasma Physics and Controlled FusionIF 2.2出版社

The interactions between the plasma and the radio frequency circuit in rotating magnetic field (RMF) current drive experiments are investigated numerically. A simplified 1D model for slowly varying conditions is used to study the penetration of the RMF into the plasma. The RMF is assumed to be generated using a two-phase two-coil arrangement and the effect of the spatial harmonics of the field is included up to the ninth harmonic. Both the coil inductance and resistance vary as the RMF penetrates into the plasma and thus influence the current in the antenna coils. The simulation results help in understanding the complex interactions between the radio frequency circuit and the plasma discharge and may help in optimizing the performance of RMF current drive experiments.

日本語訳

回転磁場(RMF)電流駆動実験におけるプラズマと高周波回路の間の相互作用を数値的に調査した。緩やかに変化する条件に対する簡略化された1次元モデルを用いて、RMFのプラズマへの浸透を研究した。RMFは2相2コイル配置を用いて生成されると仮定され、磁場の空間高調波の影響は第9高調波まで含まれる。コイルのインダクタンスと抵抗はともに、RMFがプラズマに浸透するにつれて変化し、したがってアンテナコイルの電流に影響を与える。シミュレーション結果は、高周波回路とプラズマ放電の間の複雑な相互作用の理解に役立ち、RMF電流駆動実験の性能最適化に寄与する可能性がある。

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