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Dynamo and anomalous transport in the reversed field pinch

S C Prager1999年Plasma Physics and Controlled FusionIF 2.2出版社

The reversed field pinch (RFP) is an effective tool in the study of the macroscopic consequences of magnetic fluctuations, such as the dynamo effect and anomalous transport. Several explanations exist for the dynamo (the self-generation of plasma current) - the magnetohydrodynamic dynamo, the kinetic dynamo and the diamagnetic dynamo. There is some experimental evidence for each, particularly from measurements of ion velocity and electron pressure fluctuations. Magnetic fluctuations are known to produce energy and particle flux in the RFP core. Current profile control is able to decrease fluctuation-induced transport by a factor of five. Improved confinement regimes are also obtained at deep reversal and, possibly, with flow shear.

日本語訳

反転磁場ピンチ(RFP)は、ダイナモ効果や異常輸送など、磁気擾乱の巨視的帰結の研究における有効なツールである。ダイナモ(プラズマ電流の自己生成)については、磁気流体力学ダイナモ、運動論的ダイナモ、反磁性ダイナモという複数の説明が存在する。それぞれについて、特にイオン速度擾乱と電子圧力擾乱の測定から、いくつかの実験的証拠が得られている。磁気擾乱はRFPコアにおいてエネルギーと粒子のフラックスを生じさせることが知られている。電流分布制御により、擾乱誘起輸送を5分の1に低減することが可能である。また、深い反転時および、場合によっては流れのシアー時においても、改善された閉じ込め状態が得られる。

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Reversed field pinchAnomalous transport
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