利用温度扰动产生局部低杂波电流驱动
Generation of Localized Lower-Hybrid Current Drive By Temperature Perturbations
摘要：
尽管低杂波电流驱动（LHCD）具有很高的效率，但在托卡马克装置中还没有被认为足够局部化以稳定新经典撕裂模（NTM）。鉴于射频电流冷凝效应，必须重新考虑该评估。我们发现，一个岛屿与中央热点诱导显着本地化的LHCD。此外，在稳态托卡马克中，其中大量电流由LHCD提供，NTM的被动稳定可以自动发生，特别是当岛变大时，而不需要精确瞄准波功率。
英文摘要：
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.
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