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首页> 中文期刊> 《中国物理快报：英文版》 >Edge Particle Flux with Temperature Fluctuation in the HL-2A Tokamak

Edge Particle Flux with Temperature Fluctuation in the HL-2A Tokamak

         
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摘要

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 fluctuation's 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.

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