摘要
在边血浆的电子温度，密度，血浆潜力和他们的变化侧面在 HL-2A 与一个互给的探查系统同时被测量。四尖端的数据的分析结果显示温度变化有相对振幅 10 15% ，交上更多的贡献到粒子流动更低(0 25 kHz ) 并且更高的频率(50 250 kHz ) 变化。在温度变化或潜在的变化之间的连贯暗示他们的联合愿望影响异常运输。当认为温度是变化时，测量散开系数是大约三次 Bohm 散开系数。有温度变化的粒子流动第一次在 HL-2A 被讨论。
Electron temperature, density, plasma potential and their fluctuation profiles at edge plasmas are measured simultaneously with a reciprocating probe system in HL-2A. The analysis results of four-tip data indicate that the temperature fluctuation has relative amplitude of 10-15%, gives more contribution to particle flux in lower （0- 25 kHz） and higher frequency （50-250 kHz） ranges. The coherence between temperature fluctuations and density or potential fluctuations implies that their coupling will impact anomalous transport. The measured diffusion coefficient is about three times of the Bohm diffusion coefficient when considering the temperature fluctuation. The particle flux with temperature fluctuation is discussed in HL-2A for the first time.
基金
Supported by the National Natural Science Foundation of China under Grant No 10675041. One of the authors （Cheng J.） would like to thank LIU Adi for the help on transacting the data and LAN Tao for useful discussion. We acknowledge the HL-2A Team for good operation.
