ヘリオトロンP磁場によるプラズマ閉じ込めの予備実験II

概要

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The plasma produced by a coaxial plasma gun is axially injected into a magnetic field having the property of minimum average B. This field is generated by the superposition of an usual mirror field upon the field produced by a current-carrying ring placed on the midplane of the mirror field. The injected plasma after 250μsec from the injection is so quiescent as the density fluctuation of 10<SUP>-2</SUP> or less, though the drift wave instability exists at the plasma periphery, where the density gradient is fairly steep. The frequency spectrum of the instability has a peak at about 22 kHz and its perpendicular wave length is about 2 cm.<BR>By inserting a glass cylinder just ins id the ring, above field becomes the Heliotron C type field. The plasma injected into this field is quite noisy and it decays faster than the plasma in the minimum average B field.
社団法人プラズマ・核融合学会の論文