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Control of sawtooth via ECRH on EAST tokamak

文献类型：期刊论文

作者Yuan, Yi1,2; Hu, Liqun1; Xu, Liqing1; Wang, Xiaoguang3; Wang, Xiaojie1; Xu, Handong1; Luo, Zhengping1; Chen, Kaiyun1; Lin, Shiyao1; Duan, Yanmin1
刊名PHYSICS OF PLASMAS
出版日期2016-06-01
卷号23期号:6页码:062503
DOI10.1063/1.4953605
文献子类Article
英文摘要Localized electron heating produced by electron cyclotron resonant heating (ECRH) system has been proven to be powerful tools for controlling sawtooth instabilities, because such system allows to directly modify the local plasma parameters that determine the evolution of sawtooth periods. In this paper, we present the experimental results carried out on experimental advanced superconducting tokamak (EAST) with regard to sawtooth period control via ECRH. The electron cyclotron heating system on EAST was capable of inject electron cyclotron wave toward certain locations inside or outside q = 1 magnetic surface on the poloidal cross section, which renders us able to investigate the evolution of sawtooth period against the ECRH deposition position. It is found that when ECRH deposition position is inside the q = 1 surface, the sawtooth oscillation is destabilized (characterized by reduced sawtooth period). So far, inside the q = 1 surface, there are not enough EAST experiment data that can reveal more detailed information about the relation between ECRH deposition position and sawtooth period. When ECRH deposition is outside the q = 1 surface, the sawtooth oscillation is stabilized (characterized by prolonged sawtooth period), and the sawtooth periods gradually decrease as ECRH deposition position sweeps away from q = 1 surface. The sawtooth periods reach maximum when ECRH deposition position falls around q = 1 surface. The magnetic shear at q = 1 surface is calculated to offer insights for the temporal evolution of sawtooth. The result has been found consistent with the Porcelli model. Published by AIP Publishing.
WOS关键词PERIOD
WOS研究方向Physics
语种英语
WOS记录号WOS:000379172200054
资助机构JSPS-NRF-NSFCA3 Foresight Program in the field of Plasma Physics (NSFC)(11261140328) ; JSPS-NRF-NSFCA3 Foresight Program in the field of Plasma Physics (NSFC)(11261140328) ; JSPS-NRF-NSFCA3 Foresight Program in the field of Plasma Physics (NSFC)(11261140328) ; JSPS-NRF-NSFCA3 Foresight Program in the field of Plasma Physics (NSFC)(11261140328) ; JSPS-NRF-NSFCA3 Foresight Program in the field of Plasma Physics (NSFC)(11261140328) ; JSPS-NRF-NSFCA3 Foresight Program in the field of Plasma Physics (NSFC)(11261140328) ; JSPS-NRF-NSFCA3 Foresight Program in the field of Plasma Physics (NSFC)(11261140328) ; JSPS-NRF-NSFCA3 Foresight Program in the field of Plasma Physics (NSFC)(11261140328) ; JSPS-NRF-NSFCA3 Foresight Program in the field of Plasma Physics (NSFC)(11261140328) ; JSPS-NRF-NSFCA3 Foresight Program in the field of Plasma Physics (NSFC)(11261140328) ; JSPS-NRF-NSFCA3 Foresight Program in the field of Plasma Physics (NSFC)(11261140328) ; JSPS-NRF-NSFCA3 Foresight Program in the field of Plasma Physics (NSFC)(11261140328) ; JSPS-NRF-NSFCA3 Foresight Program in the field of Plasma Physics (NSFC)(11261140328) ; JSPS-NRF-NSFCA3 Foresight Program in the field of Plasma Physics (NSFC)(11261140328) ; JSPS-NRF-NSFCA3 Foresight Program in the field of Plasma Physics (NSFC)(11261140328) ; JSPS-NRF-NSFCA3 Foresight Program in the field of Plasma Physics (NSFC)(11261140328) ; National Magnetic Confinement Fusion Science Program of China(2013GB106003B ; National Magnetic Confinement Fusion Science Program of China(2013GB106003B ; National Magnetic Confinement Fusion Science Program of China(2013GB106003B ; National Magnetic Confinement Fusion Science Program of China(2013GB106003B ; National Magnetic Confinement Fusion Science Program of China(2013GB106003B ; National Magnetic Confinement Fusion Science Program of China(2013GB106003B ; National Magnetic Confinement Fusion Science Program of China(2013GB106003B ; National Magnetic Confinement Fusion Science Program of China(2013GB106003B ; National Magnetic Confinement Fusion Science Program of China(2013GB106003B ; 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2012GB103000) ; 2012GB103000) ; JSPS-NRF-NSFCA3 Foresight Program in the field of Plasma Physics (NSFC)(11261140328) ; JSPS-NRF-NSFCA3 Foresight Program in the field of Plasma Physics (NSFC)(11261140328) ; JSPS-NRF-NSFCA3 Foresight Program in the field of Plasma Physics (NSFC)(11261140328) ; JSPS-NRF-NSFCA3 Foresight Program in the field of Plasma Physics (NSFC)(11261140328) ; JSPS-NRF-NSFCA3 Foresight Program in the field of Plasma Physics (NSFC)(11261140328) ; JSPS-NRF-NSFCA3 Foresight Program in the field of Plasma Physics (NSFC)(11261140328) ; JSPS-NRF-NSFCA3 Foresight Program in the field of Plasma Physics (NSFC)(11261140328) ; JSPS-NRF-NSFCA3 Foresight Program in the field of Plasma Physics (NSFC)(11261140328) ; JSPS-NRF-NSFCA3 Foresight Program in the field of Plasma Physics (NSFC)(11261140328) ; JSPS-NRF-NSFCA3 Foresight Program in the field of Plasma Physics (NSFC)(11261140328) ; JSPS-NRF-NSFCA3 Foresight Program in the field of Plasma Physics (NSFC)(11261140328) ; JSPS-NRF-NSFCA3 Foresight Program in the field of Plasma Physics (NSFC)(11261140328) ; 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源URL[http://ir.hfcas.ac.cn:8080/handle/334002/21705]  
专题合肥物质科学研究院_中科院等离子体物理研究所
作者单位1.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China
2.Univ Sci & Technol China, Hefei 230031, Peoples R China
3.China Acad Engn Phys, Ctr Fus Energy Sci & Technol, Beijing 100000, Peoples R China
推荐引用方式
GB/T 7714		 Yuan, Yi,Hu, Liqun,Xu, Liqing,et al. Control of sawtooth via ECRH on EAST tokamak[J]. PHYSICS OF PLASMAS,2016,23(6):062503.
APA Yuan, Yi.,Hu, Liqun.,Xu, Liqing.,Wang, Xiaoguang.,Wang, Xiaojie.,...&Liang, Yunfeng.(2016).Control of sawtooth via ECRH on EAST tokamak.PHYSICS OF PLASMAS,23(6),062503.
MLA Yuan, Yi,et al."Control of sawtooth via ECRH on EAST tokamak".PHYSICS OF PLASMAS 23.6(2016):062503.

入库方式： OAI收割

来源：合肥物质科学研究院

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