论文标题
通过漂移波湍流散射和阻尼Alfven本征模
On scattering and damping of Toroidal Alfven eigenmode by drift wave turbulence
论文作者
论文摘要
我们分析地证明,在环形等离子体中,通过漂移波湍流散射可能会导致通过产生短波长电子Landau抑制动力学的Alfven波的环形Alfven本征的明显阻尼。导出了阻尼率的相应分析表达,并发现通常与通过能量颗粒的线性驱动相当。还讨论了这种新型机制对燃烧等离子体的运输和加热过程的含义。
We demonstrate analytically that, in toroidal plasmas, scattering by drift wave turbulence could lead to appreciable damping of toroidal Alfven eigenmodes via generation of short-wavelength electron Landau damped kinetic Alfven waves. A corresponding analytic expression of the damping rate is derived, and found to be, typically, comparable to the linear drive by energetic particles. The implications of this novel mechanism on the transport and heating processes in burning plasmas are also discussed.