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Data Acquisition and Management for the J-TEXT Tokomak Experiment

Author: HuangLiHua
Tutor: ZhuangGe
School: Huazhong University of Science and Technology
Course: Pulsed Power and Plasma
Keywords: J-TEXT Data acquisition Data Services Data processing Electromagnetic interference
CLC: TL631.24
Type: Master's thesis
Year: 2009
Downloads: 22
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Abstract


This paper briefly describes the course of development of the tokamak research at home and abroad , as well as some of the main magnetic confinement fusion experimental device data management system . Through study and learn from the unique design of the data management system , combined with the actual situation of the J - TEXT Tokamak device and network structure characteristics , building the experimental data system based on the J-TEXT MDSplus . The main task of this system assumed four relatively independent aspects , including data acquisition, data storage , data processing , and data services . In this thesis, the main work is to establish and improve the system part of the data storage and data processing part . The system architecture of the J-TEXT experimental data using a combination of distributed and centralized model , in other words , that uses distributed data storage management , and data services partly centralized management . In the data processing section , the introduction of the mechanism of action node MDSplus . Such node mechanism allows the user MDSplus data tree via the TDI function call Matlab script, in order to achieve the automatic analysis and processing of the experimental raw data . In addition, the paper also examines the impact of electromagnetic interference in the J - TEXT tokamak discharge operation data system , and a more detailed description of classification and a more detailed analysis . Inhibit or reduce electromagnetic interference several programs for the J-TEXT experiment more serious ground interference of electromagnetic interference and environmental electromagnetic interference . J - TEXT data system has been successfully used in the experiment of the normal discharge of the device . The experimental results show that the experimental data the system is stable, reliable . Particularly the establishment of the data analysis server , the automatic processing of the experimental data ; single-point ground and install the electromagnetic shielding net used in the data collection terminal , greatly reduces the influence of electromagnetic interference on the data acquisition .

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CLC: > Industrial Technology > Nuclear technology > Controlled thermonuclear reactions ( fusion reaction theory and experimental facilities) > Thermonuclear device > Magnetic confinement devices > Closed plasma device > Tokamak
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