摘要
一、引言目前许多实验都已证实托卡马克边缘扰动对等离子体的反常输运有重要的影响,由于扰动而产生的反常粒子输运流大约在玻(王母)扩散量级,而且,边缘扰动的大小、湍流频谱和波数谱的宽度对约束时间的影响很大。用探针对边缘等离子体进行湍流扰动分析已在许多托卡马克实验中进行过,用静电探针得到的电子密度扰动n和悬浮电位扰动,可以估计出扰动产生的粒子输运通量。本文主要给出了一套静电探针系统及其数据获取和频谱分析方法,
The method used to analyze the edge fluctuation spectra in the HL-1 tokamak is presented and preliminary results are given. The auto-power, correlation, phase and wave-number spectra of edge fluctuations, as well as the 3-dimensional frequency-spectrum can be obtained for each discharge. It is observed that the edge fluctuation is a turbulent one, and there is a strong correlation among spectra in low frequency region.
出处
《核聚变与等离子体物理》
CAS
CSCD
北大核心
1989年第4期247-250,共4页
Nuclear Fusion and Plasma Physics
基金
核工业西南物理研究院青年科学基金 编号:SWIP88-青年-14
