论文标题
无碰撞环状等离子体中微情感模式的陀螺分散关系
The gyrokinetic dispersion relation of microtearing modes in collisionless toroidal plasmas
论文作者
论文摘要
我们解决了线性化的陀螺仪方程,准洗手率条件和安培定律,以获得微疗法模式(MTMS)在无碰撞的低β小圆环等离子体中的分散关系。与过去的研究一致,我们发现MTM被电子温度梯度驱动不稳定,并且这种不稳定性驱动是由磁漂移介导的。我们得出的分散关系可以非常快速地评估,并且可能被证明对制定融合设备中MTM不稳定性的策略有用。
We solve the linearized gyrokinetic equation, quasineutrality condition, and Ampere's law to obtain the dispersion relation of microtearing modes (MTMs) in collisionless low-beta toroidal plasmas. Consistent with past studies, we find that MTMs are driven unstable by the electron temperature gradient and that this instability drive is mediated by magnetic drifts. The dispersion relation that we derive can be evaluated numerically very quickly and may prove useful for devising strategies to mitigate MTM instability in fusion devices.