The linear ion gyro-kinetic equation in stellarator geometry is presented. This equation, together with the quasineutrality condition and an adiabatic electron response, is solved as an initial-value problem along the magnetic field line. Numerical results for the toroidal heliac H1-NF (Hamberger S M et al 1990 Fusion Technol. 17 123) are presented. It is shown that the local properties of the confining magnetic field, such as the normal and geodesic curvatures and the integrated residual shear, are important for the mode localization along the field line.
恒星器几何中的线性离子回旋动理学方程被提出。该方程与准中性条件及绝热电子响应一起，作为沿磁力线的初值问题被求解。给出了环形螺旋器H1-NF（Hamberger S M 等，1990，Fusion Technol. 17 123）的数值结果。结果表明，约束磁场局域性质，如法向曲率和测地曲率以及积分残余剪切，对模沿磁力线的局域化起重要作用。