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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,
I. INTRODUCTION At present, many experiments have confirmed that the turbulence of the Tokamak edge has an important influence on the abnormal transport of plasma. The transport of anomalous particles due to perturbation is about the order of magnitude of the diffusion of glass (QaMa), and the edge The size of the perturbation, the turbulence spectrum and the width of the wavenumber spectrum greatly influence the confinement time. Turbulent perturbation analysis of edge plasmas with probes has been carried out in many tokamak experiments and the perturbed particle transport flux can be estimated using the electron density perturbations n and the levitation potential perturbations obtained with electrostatic probes. This paper mainly gives a set of electrostatic probe system and its data acquisition and spectrum analysis methods,