Author:
ZHANG 张 Jiamin 家敏,YAO 姚 Yuan 远,LIU 刘 Yuyang 郁阳,CHU 储 Yuqi 宇奇,RUAN 阮 Tianyi 天翼,ZHANG 张 Yao 耀,LIU 刘 Haiqing 海庆,JIE 揭 Yinxian 银先,LING 凌 Bili 必利
Abstract
Abstract
A real-time data processing system is designed for the carbon dioxide dispersion interferometer (CO2-DI) on EAST. The system utilizes the parallel and pipelining capabilities of an field-programmable 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 CO2-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.
Funder
Comprehensive Research Facility for Fusion Technology Program of China
Anhui Provincial Department of Economic and Information Technology
Anhui Provincial Major Science and Technology Project
HFIPS Director’s Fund