The impact of edge localized modes (ELMs) and externally applied resonant and non-resonant magnetic perturbations (MPs) on fast-ion confinement/transport have been investigated in the ASDEX Upgrade (AUG), DIII-D and KSTAR tokamaks. Two phases with respect to the ELM cycle can be clearly distinguished in ELM-induced fast-ion losses. Inter-ELM losses are characterized by a coherent modulation of the plasma density around the separatrix while intra-ELM losses appear as well-defined bursts. In high collisionality plasmas with mitigated ELMs, externally applied MPs have little effect on kinetic profiles, including fast-ions, while a strong impact on kinetic profiles is observed in low-collisionality, low q95 plasmas with resonant and non-resonant MPs. In low-collisionality H-mode plasmas, the large fast-ion filaments observed during ELMs are replaced by a loss of fast-ions with a broad-band frequency and an amplitude of up to an order of magnitude higher than the neutral beam injection prompt loss signal without MPs. A clear synergy in the overall fast-ion transport is observed between MPs and neoclassical tearing modes. Measured fast-ion losses are typically on banana orbits that explore the entire pedestal/scrape-off layer. The fast-ion response to externally applied MPs presented here may be of general interest for the community to better understand the MP field penetration and overall plasma response.
边缘局域模（ELMs）以及外部施加的共振和非共振磁扰动（MPs）对快离子约束/输运的影响已在ASDEX Upgrade（AUG）、DIII-D和KSTAR托卡马克中进行了研究。在ELM周期中，可以清楚地区分出两个阶段，对应于ELM诱导的快离子损失。ELM间期的损失以等离子体密度在分界面附近的相干调制为特征，而ELM期间的损失则表现为清晰的脉冲串。在高碰撞率等离子体中，当ELM被缓解时，外部施加的MPs对动力学剖面（包括快离子）影响很小，而在低碰撞率、低q95等离子体中，共振和非共振MPs对动力学剖面产生显著影响。在低碰撞率H模等离子体中，ELM期间观察到的大幅快离子丝状结构被快离子损失所取代，该损失具有宽带频率特征，其幅度比无MPs时中性束注入的瞬态损失信号高出一个数量级。在MPs与经典撕裂模之间，观察到整体快离子输运存在明显的协同效应。所测得的快离子损失通常发生在香蕉轨道上，这些轨道贯穿整个台基/刮削层。本文所展示的快离子对外部施加MPs的响应，可能对更好地理解MP场穿透及整体等离子体响应具有普遍意义。