THRESHOLD OF ELECTROMAGNETIC INSTABILITY IN A MAGNETIC NEUTRAL SHEET

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概要

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• The structure of electromagnetic perturbations in a magnetic neutral sheet is analyzed within the framework of Vlasov-Maxwellian picture. In reference to Harris' equilibrium state, a boundary value problem is formulated and solved to give the possible existence of a low-frequency electromagnetic wave of compressional mode, propagating along the electrondrift current in the sheet. The stability of this mode is critically dependent on the thickness parameter of the sheet. If the sheet is thin enough, the perturbation will grow even for T_e=T_i. The critical thicknesses are calculated with regard to various temperature ratios and their values are found to be about 0.9 r_<Li> or less, where r_<Li> means the ion Larmor radius just outside the sheet region.

• 核融合科学研究所の論文

著者

• Yamanaka Kaoru

  Research Information Center Institute Of Plasma Physics Nagoya University

関連論文

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• THRESHOLD OF ELECTROMAGNETIC INSTABILITY IN A MAGNETIC NEUTRAL SHEET

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