Development and Preliminary Commissioning Results of a Long Pulse 140 GHz ECRH System on EAST Tokamak (Invited)

XU Handong (徐旵东); WANG Xiaojie (王晓洁); LIU Fukun (刘甫坤); ZHANG Jian (张健); HUANG Yiyun (黄懿赟); SHAN Jiafang (单家方); WU Dajun (吴大俊); HU Huaichuan (胡怀传); LI Bo (李波); LI Miaohui (李妙辉); YANG Yong (杨永); FENG Jianqiang (冯建强); XU Weiye (徐伟业); TANG Yunying (汤允迎); WEI Wei (韦维); XU Liqing (徐立清); LIU Yong (刘永); ZHAO Hailin (赵海林); J. LOHR; Y. A. GORELOV; J. P. ANDERSON; MA Wendong (马文东); WU Zege (吴则革); WANG Jian (王健); ZHANG Liyuan (张立元); GUO Fei(郭斐); SUN Haozhang (孙浩章); YAN Xinsheng (闫新胜); EAST Team

doi:10.1088/1009-0630/18/4/19

Plasma Science and Technology > 2016 > 18(4): 442-448. > DOI: 10.1088/1009-0630/18/4/19

XU Handong (徐旵东), WANG Xiaojie (王晓洁), LIU Fukun (刘甫坤), ZHANG Jian (张健), HUANG Yiyun (黄懿赟), SHAN Jiafang (单家方), WU Dajun (吴大俊), HU Huaichuan (胡怀传), LI Bo (李波), LI Miaohui (李妙辉), YANG Yong (杨永), FENG Jianqiang (冯建强), XU Weiye (徐伟业), TANG Yunying (汤允迎), WEI Wei (韦维), XU Liqing (徐立清), LIU Yong (刘永), ZHAO Hailin (赵海林), J. LOHR, Y. A. GORELOV, J. P. ANDERSON, MA Wendong (马文东), WU Zege (吴则革), WANG Jian (王健), ZHANG Liyuan (张立元), GUO Fei(郭斐), SUN Haozhang (孙浩章), YAN Xinsheng (闫新胜), EAST Team. Development and Preliminary Commissioning Results of a Long Pulse 140 GHz ECRH System on EAST Tokamak (Invited)[J]. Plasma Science and Technology, 2016, 18(4): 442-448. DOI: 10.1088/1009-0630/18/4/19

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Development and Preliminary Commissioning Results of a Long Pulse 140 GHz ECRH System on EAST Tokamak (Invited)

1Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China 2General Atomics, San Diego, CA 92186-5608, USA

Funds: supported by the National Magnetic Confinement Fusion Science Program of China (Nos. 2011GB102000, 2012GB103000 and 2015GB103000)

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Received Date: October 09, 2015

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Abstract

Abstract

A long pulse electron cyclotron resonance heating (ECRH) system has been developed to meet the requirements of steady-state operation for the EAST superconducting tokamak, and the first EC wave was successfully injected into plasma during the 2015 spring campaign. The system is mainly composed of four 140 GHz gyrotron systems, 4 ITER-Like transmission lines, 4 independent channel launchers and corresponding power supplies, a water cooling, control & inter-lock system etc. Each gyrotron is expected to deliver a maximum power of 1 MW and be operated at 100-1000 s pulse lengths. The No.1 and No.2 gyrotron systems have been installed. In the initial commissioning, a series of parameters of 1 MW 1 s, 900 kW 10 s, 800 kW 95s and 650 kW 753 s have been demonstrated successfully on the No.1 gyrotron system based on calorimetric dummy load measurements. Significant plasma heating and MHD instability suppression effects were observed in EAST experiments. In addition, high confinement (H-mode) discharges triggered by ECRH were obtained.
- gyrotron system,
- ECRH,
- millimeter wave,
- EAST,
- steady-state operation

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References (1)

References

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