The effects of a coherent mode (CM) at a frequency of f = 13–16 kHz on the redistribution of divertor particle flux have been studied in HL-2A H-mode plasmas using multiple diagnostics. The experimental results demonstrate that a CM localized at the middle of the pedestal results in outward particle transport, limiting the growth of the pedestal density gradient in the recovery phase of the pedestal, leading to a substantial increase in the localized particle flux striking the outer divertor target, which clearly deviates from the primary peak at the strike point. These observations indicate that the CM might play a crucial role in redistributing the divertor particle flux, which is important for understanding and controlling the divertor heat flux in future fusion-relevant devices.

已经使用多重诊断在 HL-2A H 模式等离子体中研究了频率为f = 13-16 kHz的相干模式 (CM)对偏滤器粒子通量重新分布的影响。实验结果表明，位于基座中部的 CM 导致粒子向外传输，限制了基座恢复阶段基座密度梯度的增长，导致撞击外偏滤器的局部粒子通量显着增加目标，这明显偏离了打击点的主要峰值。这些观察结果表明，CM 可能在重新分配偏滤器粒子通量方面发挥关键作用，这对于理解和控制未来与聚变相关的装置中的偏滤器热通量很重要。