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Finite pressure equilibrium effects on helical ripple transport in torsatrons

V.E. Bykov, D.L. Grekov, A.A. Shishkin, L. Garcia, J.H. Harris, J.A. Rome1988年被引用 2Nuclear FusionIF 3出版社

A three-dimensional equilibrium code (NEAR) is used to study plasma equilibrium in torsatron configurations having various winding laws. The harmonic spectra describing the variation of || along magnetic field lines are calculated at finite plasma pressure and then used to calculate the geometric factors that determine the magnitudes of the neoclassical transport coefficients in the helical ripple trapping regime, where the particle and heat fluxes are inversely proportional to the collision frequency. The results show that an appropriate choice of winding law can reduce helical ripple transport by a factor of about 2 in the vacuum field and at high plasma pressure.

日本語訳

三次元平衡コード(NEAR)を用いて、様々な巻き線則を有するトルサトロン配位におけるプラズマ平衡を研究した。磁力線に沿った||の変化を記述する高調波スペクトルを有限プラズマ圧力下で計算し、その後、粒子束および熱束が衝突周波数に反比例するヘリカルリップル捕捉領域における新古典輸送係数の大きさを決定する幾何係数を計算するために用いた。その結果、適切な巻き線則の選択により、真空磁場中および高プラズマ圧力下の両方において、ヘリカルリップル輸送を約2倍低減できることが示された。

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