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Rotating magnetic field current drive of FRCs subject to equilibrium constraints

A.L. Hoffman2000年被引用 41Nuclear FusionIF 3出版社

The standard analysis for rotating magnetic field (RMF) current production in simple fixed density plasma columns is extended to include the critical interaction between the RMF drive and an elongated field reversed configuration (FRC) equilibrium inside a flux conserver. The standard analysis involves penetration of the RMF into a highly conducting plasma through production of synchronous rotation of the electron fluid due to Hall terms in Ohm's law. In the present article the RMF analysis is combined with two dimensional equilibrium constraints, which have a defining role in governing the RMF penetration. Very simple analytic models are developed, based on instantaneous RMF penetration into an edge layer, that illuminate the basic parameters necessary for current drive and flux buildup or sustainment to be successful. The model does not account for time dependent RMF penetration or transport consistent density profiles, but it clearly points out the basic conditions that must be satisfied, and how they scale, for RMF sustainment of FRCs to be effective.

日本語訳

回転磁場(RMF)による電流生成に関する標準的な解析は、単純な固定密度プラズマ柱において、磁束保存器内部の細長い磁場反転配位(FRC)平衡とRMFとの間の重要な相互作用を含むように拡張される。標準的な解析は、オームの法則におけるホール項による電子流体の同期回転の生成を通じて、高伝導性プラズマへのRMFの浸透を扱う。本論文では、RMFの解析を二次元平衡の制約と組み合わせる。これらはRMFの浸透を支配する上で決定的な役割を果たす。エッジ層へのRMFの即時浸透に基づく非常に単純な解析モデルを構築し、電流駆動および磁束生成または維持を成功させるために必要な基本パラメータを明らかにする。このモデルは、時間依存のRMF浸透や輸送に整合した密度分布は考慮しないが、RMFによるFRCの維持を効果的にするために満たされなければならない基本条件と、それらのスケーリング則を明確に示す。

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