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本文考虑环形系统双成份等离子体中快波电场与少数成份离子共振时,快波经回旋阻尼以加热等离子体。假定粒子间接近无碰撞,沿特征线积分Vlasov方程的方法求一级分布函数及各类粒子贡献的电流。因为少数成份粒子密度与多数成份粒子密度之比为小量,不难求解等离子体内精确到一级的电场。从而求得快波回旋阻尼功率。对于一个具体的激发系统,由边条件求解场系数,得到了通过快波回旋阻尼加热等离子体的功率。
In this paper, when the fast-wave electric field in a two-component plasma of a toroidal system is resonated with a few ion components, the fast wave is cycled and damped to heat the plasma. Assuming that the particles are close to no collision, the first-order distribution function and the current contributions of all kinds of particles are obtained by integrating the Vlasov equation along the characteristic line. Because a small number of component particle density and particle density of the majority of components for the small ratio, it is not difficult to solve the plasma to an accurate electric field. Thus, the fast wave gyration damping power can be obtained. For a specific excitation system, the field coefficients are solved by the edge conditions and the power of the plasma heated by the fast-wave gyration damping is obtained.