An analysis is made of the effect of plasma equilibrium currents and of an external transverse correcting field on the characteristics of the separatrix (the limiting closed magnetic surface) in an ℓ = 3 stellarator. The investigations were made by using numerical integration of the equation of a magnetic line of force, for simplified models of the magnetic field.
プラズマ平衡電流と外部横方向補正磁場が、ℓ = 3 ステラレーターにおけるセパラトリクス（限界閉磁気面）の特性に及ぼす影響について解析を行う。調査は、簡略化された磁場モデルに対して磁力線方程式の数値積分を用いて実施された。