National Fusion Research Institute, Daejeon, Korea.
Phys Rev Lett. 2012 Jul 20;109(3):035004. doi: 10.1103/PhysRevLett.109.035004.
Edge localized modes (ELMs) in high-confinement mode plasmas were completely suppressed in KSTAR by applying n=1 nonaxisymmetric magnetic perturbations. Initially, the ELMs were intensified with a reduction of frequency, but completely suppressed later. The electron density had an initial 10% decrease followed by a gradual increase as ELMs were suppressed. Interesting phenomena such as a saturated evolution of edge T(e) and broadband changes of magnetic fluctuations were observed, suggesting the change of edge transport by the applied magnetic perturbations.
在 KSTAR 中，通过施加 n=1 非轴对称磁场扰动完全抑制了高约束模式等离子体中的边缘局域模（ELMs）。最初，ELMs 随着频率的降低而加剧，但后来完全被抑制。当 ELMs 被抑制时，电子密度最初下降了 10%，随后逐渐增加。观察到了一些有趣的现象，如边缘 T(e)的饱和演化和磁场涨落的宽带变化，这表明施加的磁场扰动改变了边缘输运。
