Development and Preliminary Commissioning Results of a Long Pulse 140 GHz ECRH System on EAST Tokamak（Invited）
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 1...
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| Published in | 等离子体科学与技术：英文版 no. 4; pp. 442 - 448 |
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| Main Author | |
| Format | Journal Article |
| Language | English |
| Published |
2016
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| Subjects | |
| Online Access | Get full text |
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| 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 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. |
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| AbstractList | 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. |
| Author | 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 |
| AuthorAffiliation | Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China General Atomics, San Diego, CA 92186-5608, USA |
| Author_xml | – sequence: 1 fullname: 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 |
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| Notes | gyrotron system ECRH millimeter wave EAST steady-state operation 34-1187/TL 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. |
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| PublicationTitle | 等离子体科学与技术：英文版 |
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| Snippet | A long pulse electron cyclotron resonance heating（ECRH）system has been developed to meet the requirements of steady-state operation for the EAST... |
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| StartPage | 442 |
| SubjectTerms | EAST ECRH系统 GHz 电子回旋共振加热 等离子体加热 调试 超导托卡马克核聚变实验装置 长脉冲 |
| Title | Development and Preliminary Commissioning Results of a Long Pulse 140 GHz ECRH System on EAST Tokamak（Invited） |
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