Plasma electron density measuring and processing on the J-TEXT tokamak

被引：0
|
作者：
Shu, Shuang-Bao [1 ,2 ]
Luo, Jia-Rong [2 ]
Xue, Er-Bing [2 ]
Sheng, Jing [2 ]
机构：
[1] School of Instrument Science and Opto-electronic Engineering, Hefei University of Technology, Hefei 230009, China
[2] College of Science, Donghua University, Shanghai 201620, China
来源：
Journal of Donghua University (English Edition) | 2011年 / 28卷 / 06期
关键词：
Hydrogen - Interferometers - Laser interferometry - Cyanides - Tokamak devices - Carrier concentration - Electron density measurement - Magnetoplasma;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Plasma electron density is one of the most fundamental parameters in the study of tokamak plasma physics. The method of plasma electron density measuring and processing on the Joint Texas Experimental Tokamak (J-TEXT) was presented in this paper. The principle of the plasma electron density measuring by hydrogen cyanide (HCN) laser interferometer was introduced. Room temperature triglycine sulface (TGS) detector was used to obtain the beat signal of HCN, and phase difference was measured by high-speed acquisition card DAQ2010. Based on the signal characteristics, a specific HCN processing algorithm was designed to eliminate the baseline offset accurately and process overturns of HCN signals effectively. As a result, plasma electron density with high accuracy and low noise has been obtained during the J-TEXT tokamak experiment. Copyright © 2011 Editorial Department of Journal of Donghua University.
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页码：576 / 579
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