提高等离子体密度抑制逃逸电子束不稳定性的实验研究

利用ECE电子回旋辐射和Ha线辐射等托卡马克物理诊断系统,研究了Slide-away放电过程中提高等离子体密度对非麦克斯维尔分布的逃逸电子所激发的逃逸电子束不稳定性影响作用.实验结果表明:在Slide-away放电模式下,提高等离子体密度能有效抑制逃逸电子束的不稳定性.

Experimental investigation of the suppression of runaway electron beam instability by increasing plasma density

In terms of ECE detection system and Ha emissiom detection system, the behavior of runaway electron beam instability has been studied by increasing plasma density in slide-away discharge. The runaway instability is driven by non-Maxwellian electron distribution. The results show that the runaway electron beam instability can be effectively suppressed by increasing plasma density during the Slide-away discharge.