关于热离子模稳定撕裂模的优点
On the merit of hot ion mode for tearing mode stabilization
摘要：
射频驱动电流对撕裂模的稳定作用得益于射频功率沉积和岛内电子温度之间的协同反馈回路。这种效应，称为射频电流凝聚，可以大大增强和本地化磁岛内驱动的电流。以前已经表明，冷凝效应打开了被动稳定与广泛的射频配置文件的可能性，将是典型的LHCD的稳态操作。在这里，我们表明，这种自愈效应可以显着放大的操作在热离子模式，由于额外的电子热源提供的较热的离子。
英文摘要：
The stabilization of tearing modes with rf driven current benefits from the cooperative feedback loop between rf power deposition and electron temperature within the island. This effect, termed rf current condensation, can greatly enhance and localize current driven within magnetic islands. It has previously been shown that the condensation effect opens the possibility of passive stabilization with broad rf profiles, as would be typical of LHCD for steady state operation. Here we show that this self-healing effect can be dramatically amplified by operation in a hot ion mode, due to the additional electron heat source provided by the hotter ions.
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