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The Upgrade of Data System for the J-TEXT Tokomak Experiment

Author: XianCheng
Tutor: ZhuangGe
School: Huazhong University of Science and Technology
Course: Pulsed Power and Plasma
Keywords: Data Systems Data acquisition Data storage J-TEXT Interference suppression
CLC: TL631.24
Type: Master's thesis
Year: 2011
Downloads: 17
Quote: 0
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Abstract


Fusion experiment data system is a powerful tool for comprehensive access to diagnostic measurement data , storage and management of experimental data in fusion experiments is an important part of the tokamak . According to the J - TEXT tokamak device status and actual demand , EAST, KSTAR, LHD tokamak research and analysis of the data system and the original system of data acquisition and data services on the basis of data acquisition, data system data storage , data backup , data analysis of four subsystems design and improvement . In order to meet the demand of the soft X-ray and other diagnostic array of high sampling rate data acquisition , we established a data acquisition system based on the ACQ196 data collection terminals , sampling rate 500Ksps/ch of multi-channel , 16 - bit sampling precision synchronous data acquisition ; analysis based on J-TEXT experimental data storage needs , RAID6 mode redundant disk array fault tolerance mechanisms the 9TB experimental data storage systems ; established based the automatic timing tape library backup system to achieve the J-TEXT the experimental data of the large -capacity backup; automatic data analysis system structure and to establish a preliminary result data tree . This article also analyzed J-TEXT tokamak discharge run under the influence of electromagnetic interference on the data transmission line and the data system implemented including electromagnetic shielding, filtering, electromagnetic pulse protection , isolation , optical fiber transmission and processing aspects of processing measures . By the actual running test , these suppression measures reduce the electromagnetic interference on the impact of the experimental signal and the data having a good effect of suppressing electromagnetic interference , so that the data system is more stable and reliable operation . The final design perfect J - TEXT data system , and take the appropriate electromagnetic interference suppression measures to improve the stability and reliability of the experimental data of J-TEXT running . The end of this article , the analysis pointed out the direction and vision of the J - TEXT data systems to further research and development .

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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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