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Electron Cyclotron Emission Imaging on the EAST Tokamak

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【作者】徐明；徐小圆；闻一之；马锦秀；谢锦林；高炳西；兰涛；刘阿棣；余羿；何迎花；万宝年；胡立群；高翔；

【Author】 XU Ming~(1,2), XU Xiaoyuan~1, WEN Yizhi~1, MA Jinxiu~1, XIE Jinlin~1, GAO Bingxi~1, LAN Tao~1, LIU Adi~1, YU Yi~1, HE Yinghua~1, WAN Baonian~2, HU Liqun~2, GAO Xiang~2 1CAS Key Laboratory of Plasma Physics, University of Science and Technology of China, Hefei 230026, China 2Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China

【机构】 CAS Key Laboratory of Plasma Physics, University of Science and Technology of China； Institute of Plasma Physics, Chinese Academy of Sciences；

【摘要】 <正> An upgraded electron cyclotron emission imaging (ECEI) system consisting of newoptics lenses with necessary electronics for receiving and processing signals for two dimension(2D) ECEI diagnostics was installed on EAST. Hyperboloid lens were adopted in the new systemto optimize the spatial resolutions. The mixers array of sixteen elements measured the plasmaelectron cyclotron emission at eight frequencies simultaneously, and the profiles of the electrontemperature and its fluctuation in an area of 20 cm (vertical) × 6 cm (horizontal) could then beanalyzed. Evolution of sawtooth precursor and crash in EAST was observed.更多还原

【Abstract】 An upgraded electron cyclotron emission imaging (ECEI) system consisting of new optics lenses with necessary electronics for receiving and processing signals for two dimension (2D) ECEI diagnostics was installed on EAST. Hyperboloid lens were adopted in the new system to optimize the spatial resolutions. The mixers array of sixteen elements measured the plasma electron cyclotron emission at eight frequencies simultaneously, and the profiles of the electron temperature and its fluctuation in an area of 20 cm (vertical) × 6 cm (horizontal) could then be analyzed. Evolution of sawtooth precursor and crash in EAST was observed.更多还原

【关键词】 electron cyclotron emission imaging； hyperboloid lens； sawtooth precursor evolution； EAST tokamak；
【Key words】 electron cyclotron emission imaging； hyperboloid lens； sawtooth precursor evolution； EAST tokamak；

【基金】 supported by the National Basic Research Program of China (No. 2008CB717800);National Natural Science Foundation of China (No. 10335060);Grants from the Ministry of Education and the Chinese Academy of Sciences;CAS-JSPS Core University Program in Plasma and Nuclear Fusion;by the PRC-US Fusion Cooperation Program (Plasma Physics, Project A-5)

【文献出处】 Plasma Science and Technology ,等离子体科学和技术(英文版) , 编辑部邮箱 ,2011年02期

【分类号】TL631.24
【被引频次】9

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