Real-time data processing method for CO_(2) dispersion interferometer on EAST  

作　　者：张家敏 姚远 刘郁阳 储宇奇 阮天翼 张耀 刘海庆 揭银先 凌必利 Jiamin ZHANG;Yuan YAO;Yuyang LIU;Yuqi CHU;Tianyi RUAN;Yao ZHANG;Haiqing LIU;Yinxian JIE;Bili LING(Institute of Plasma Physics,Hefei Institutes of Physical Science,Chinese Academy of Sciences,Hefei 230031,People’s Republic of China;University of Science and Technology of China,Hefei 230026,People’s Republic of China;University of California Los Angeles,Los Angeles,California 90095,United States of America)

机构地区：[1]Institute of Plasma Physics,Hefei Institutes of Physical Science,Chinese Academy of Sciences,Hefei 230031,People’s Republic of China [2]University of Science and Technology of China,Hefei 230026,People’s Republic of China [3]University of California Los Angeles,Los Angeles,California 90095,United States of America

出　　处：《Plasma Science and Technology》2024年第8期121-126,共6页等离子体科学和技术（英文版）

基　　金：funded and supported by the Comprehensive Research Facility for Fusion Technology Program of China(No.2018-000052-73-01-001228);the HFIPS Director’s Fund(No.YZJJKX202301);the Anhui Provincial Major Science and Technology Project(No.2023z020004);Task JB22001 from the Anhui Provincial Department of Economic and Information Technology。

摘　　要：A real-time data processing system is designed for the carbon dioxide dispersion interferometer(CO_(2)-DI)on EAST.The system utilizes the parallel and pipelining capabilities of an fieldprogrammable gate array(FPGA)to digitize and process the intensity of signals from the detector.Finally,the real-time electron density signals are exported through a digital-to-analog converter(DAC)module in the form of analog signals.The system has been successfully applied in the CO_(2)-DI system to provide low-latency electron density input to the plasma control system on EAST.Experimental results of the latest campaign with long-pulse discharges on EAST(2022–2023)demonstrate that the system can respond effectively in the case of rapid density changes,proving its reliability and accuracy for future electron density calculation.

关 键 词：dispersion interferometer REAL-TIME electron density FPGA EAST 

分 类 号：TL631.24[核科学技术—核技术及应用]