期刊：
Fusion Engineering and Design,2021年172:112897 ISSN：0920-3796
通讯作者：
Li, Xinxia
作者机构：
[Li, Xinxia; Li, Guozhuang; Liu, Hongbo] Univ South China, Dept Nucl Phys, Hengyang 421001, Peoples R China.;[Li, Xinxia] Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China.;[Liu, Hongbo] HengYang Normal Univ, Coll Phys & Elect Engn, Hengyang 421008, Peoples R China.
通讯机构：
[Li, Xinxia] U;Univ South China, Dept Nucl Phys, Hengyang 421001, Peoples R China.
关键词：
CFETR;Helicon wave;Plasma current drive;Tokamak
摘要：
The China Fusion Engineering Testing Reactor (CFETR) is a tokamak reactor and aims to eventually reach DEMO relevant fusion power level of 1 GW. A lower single null configuration of the divertor design is proposed for the machine. To obtain the high performance operation of the plasma, both the hybrid and steady-state operating scenarios are suggested. In these scenarios, the plasma beta of <beta(e)> similar to 1.6% has been generally reached. In the paper, helicon wave propagation and current drive in CFETR are studied through GENRAY/CQL3D code. An analysis of the wave damping factor in CFETR plasma indicates that the electron Landau damping is dominant for the core plasma. According to the dimensionless parameter xi(e) and beta(e), a strong wave damping region is found. Based on the GENRAY simulation, the single pass power absorptions are generally obtained in both scenarios. Scanning of generated current on the launched poloidal angle indicates that high current drive efficiency is produced at theta similar to 30 degrees. For helicon wave with frequency f = 700 MHz, calculations of the current drive show that off-axis current drive about 30 kA/MW and 50 kA/MW are obtained in the hybrid and steady-state scenarios respectively. Simultaneously, the lower plasma density and high temperature promote the high current generation. Moreover, the obtained current drive and its peak position are shown to be sensitive to the launched n(//) similar to Finally, the helicon wave with frequency f = 700 MHz and launched n(//) similar to 2.0-3.0 is proposed to be a promising scheme for effective off-axis current drive in CFETR.
摘要：
The lower hybrid wave current drive (LHCD) in the presence of magnetic islands in Tokamak plasma with the circular cross section is studied numerically. The emergence of magnetic island is considered as a perturbation characterized by the perturbed magnetic flux near the resonant surface. By taking the perturbed magnetic field into account in the lower hybrid simulation code, the wave propagation, power deposition, and current drive are investigated using typical Experimental Advanced Superconductor Tokamak (EAST) L-and H-modes discharge parameters. The simulation results show that the wave propagation, power deposition, and current drive are significantly affected by the existence of magnetic island. Due to the H-mode pedestal, the effect of magnetic islands on the LHCD in EAST H-mode discharge is more significant than that in the L-mode discharge. (C) 2014 AIP Publishing LLC.
期刊：
BioTechnology: An Indian Journal,2013年8(4):543-550 ISSN：0974-7435
通讯作者：
Liao, D.-F.(dfliao66@aliyun.com)
作者机构：
[Tuo, Qin-Hui; Liao, Duan-Fang; Gong, Yong-Zhen; Sun, Shao-Wei] Hunan University of Chinese Medicine, Hanpu Science and Education District, 1# Xiangzui Road, Changsha 410208, Hunan, China;[Ke-Tang, Chao] Institute of Cardiovascular Disease, Life Science Research Center, University of South China, 28# Changsheng Western Road, Hengyang 421001, Hunan, China;[Tuo, Qin-Hui; Ke-Tang, Chao; Liao, Duan-Fang; Gong, Yong-Zhen; Zhang, Xiao-Ying; Sun, Shao-Wei] Division of biochemistry, School of pharmacy and Life Science, University of South China, 28# Changsheng West Road, Hengyang 421001, Hunan, China;[Zhang, Xiao-Ying] Division of Pharmacoproteomics, School of pharmacy and Life Science, University of South China, 28# Changsheng Western Road, Hengyang 421001, Hunan, China
通讯机构：
[Liao, D.-F.] H;Hunan University of Chinese Medicine, 1# Xiangzui Road, Changsha 410208, Hunan, China
作者机构：
[Xiong, Ping; He, Ji-Shan] School of Info-Physics and Geomatics Engineering, Central South University, Changsha 410083, China;[Li, Xin-Xia] Department of Nuclear Physics, University of South China, Hengyang 421001, China;[Guo, Ping] School of Info-Physics and Geomatics Engineering, Central South University, Changsha 410083, China<&wdkj&>Department of Nuclear Physics, University of South China, Hengyang 421001, China
通讯机构：
[Guo, P.] S;School of Info-Physics and Geomatics Engineering, , Changsha 410083, China
