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

作　　者：徐旵东 王晓洁 刘甫坤 张健 黄懿赟 单家方 吴大俊 胡怀传 李波 李妙辉 杨永 冯建强 徐伟业 汤允迎 韦维 徐立清 刘永 赵海林 J.LOHR Y.A.GORELOV J.P.ANDERSON 马文东 吴则革 王健 张立元 郭斐 孙浩章 闫新胜 EAST Team 

机构地区：[1]Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China [2]General Atomics, San Diego, CA 92186-5608, USA [3]不详

出　　处：《Plasma Science and Technology》2016年第4期442-448,共7页等离子体科学和技术（英文版）

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

摘　　要：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 k W 10 s,800 k W 95 s and650 k W 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.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 k W 10 s,800 k W 95 s and650 k W 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.

关 键 词：gyrotron system ECRH millimeter wave EAST steady-state operation 

分 类 号：TL631.24[核科学技术—核技术及应用] TP274.2[自动化与计算机技术—检测技术与自动化装置]