论文标题
部分可观测时空混沌系统的无模型预测
Core localized alpha-channeling via low frequency Alfven mode generation in reversed shear scenarios
论文作者
论文摘要
提出并使用非线性陀螺仪理论提出并分析了在Tokamak核心等离子体中加热燃料离子的新通道。该通道是通过自发衰变的反向剪切Alfven本征（RSAE）到低频Alfven模式（LFAM）的，然后通过无碰撞离子Landau阻尼加热燃料离子。研究了RSAE自发衰变的条件，并得出了饱和水平和随之而来的燃料离子加热速率。预计该通道对于在反向剪切构型下运行的将来的反应器至关重要，在这种反向剪切构型下，在Tokamak芯中产生了融合α颗粒，通常会反转磁剪切，并且由于小α粒子粒子特征性的无尺寸尺寸无尺寸。
A novel channel for fuel ions heating in tokamak core plasma is proposed and analyzed using nonlinear gyrokinetic theory. The channel is achieved via spontaneous decay of reversed shear Alfven eigenmode (RSAE) into low frequency Alfven modes (LFAM), which then heat fuel ions via collisionless ion Landau damping. The conditions for RSAE spontaneous decay are investigated, and the saturation level and the consequent fuel ion heating rate are also derived. The channel is expected to be crucial for future reactors operating under reversed shear configurations, where fusion alpha particles are generated in the tokamak core where the magnetic shear is typically reversed, and there is a dense RSAE spectrum due to the small alpha particle characteristic dimensionless orbits.
