论文标题
通过温度扰动生成局部下水肿电流驱动器
Generation of Localized Lower-Hybrid Current Drive By Temperature Perturbations
论文作者
论文摘要
尽管表现出较高的效率,但较低的杂交电流驱动器(LHCD)尚未被认为本地化足以用于在Tokamaks中稳定新古典撕裂模式(NTM)。鉴于RF当前的冷凝效应,必须重新考虑该评估。我们表明,一个具有中央热点的岛屿会引起LHCD的显着定位。此外,在LHCD提供大量电流的稳定状态下,NTM的被动稳定可能会自动发生,尤其是随着岛屿变得大,而无需精确的波浪功率。
Despite high demonstrated efficiency, lower-hybrid current drive (LHCD) has not been considered localized enough for neoclassical tearing mode (NTM) stabilization in tokamaks. This assessment must be reconsidered in view of the RF current condensation effect. We show that an island with a central hot spot induces significant localization of LHCD. Furthermore, in steady state tokamaks where a significant amount of current is provided by LHCD, passive stabilization of NTMs may occur automatically, particularly as islands become large, without requiring precise aiming of the wave power.