Investigation of impurity confinement in lower hybrid wave heated plasma on EAST tokamak
文献类型:期刊论文
作者 | Xu, Z.4,5; Wu, Z. W.5; Zhang, L.5; Gao, W.5; Ye, Y.4,5; Chen, K. Y.5; Yuan, Y.5; Zhang, W.5; Yang, X. D.5; Chen, Y. J.5 |
刊名 | NUCLEAR FUSION |
出版日期 | 2018 |
卷号 | 58期号:1页码:10 |
ISSN号 | 0029-5515 |
关键词 | impurity confinement time LHW EAST HER H-mode |
DOI | 10.1088/1741-4326/aa8e06 |
英文摘要 | The transient perturbation method with metallic impurities such as iron (Fe, Z = 26) and copper (Cu, Z = 29) induced in plasma-material interaction (PMI) procedure is used to investigate the impurity confinement characters in lower hybrid wave (LHW) heated EAST sawtooth-free plasma. The dependence of metallic impurities confinement time on plasma parameters (e.g. plasma current, toroidal magnetic field, electron density and heating power) are investigated in ohmic and LHW heated plasma. It is shown that LHW heating plays an important role in the reduction of the impurity confinement time in L-mode discharges on EAST. The impurity confinement time scaling is given as 42I(P)(0.32)B(t)(0.2)n(e)(-0.43)P(total)(-0.4) on EAST, which is close to the observed scaling on Tore Supra and JET. Furthermore, the LHW heated high-enhanced-recycling (HER) H-mode discharges with similar to 25 kHz edge coherent modes (ECM), which have lower impurity confinement time and higher energy confinement time, provide promising candidates for high performance and steady state operation on EAST. |
WOS关键词 | ALCATOR-C TOKAMAK ; PARTICLE CONFINEMENT ; ASDEX UPGRADE ; TRANSPORT ; ACCUMULATION ; DISRUPTIONS ; DISCHARGES ; TRANSITION |
资助项目 | National Natural Science Foundation of China[11575249] ; National Magnetic Confinement Fusion Science Program of China[2015GB103003] ; National Magnetic Confinement Fusion Science Program of China[2015GB110005] ; National Magnetic Confinement Fusion Science Program of China[2015GB101000] ; National Natural Science Foundation of China[11575235] ; National Natural Science Foundation of China[11422546] ; National Magnetic Confinement Fusion Science Program of China[2013GB107004] ; National Magnetic Confinement Fusion Science Program of China[2014GB124006] ; National Natural Science Foundation of China[11275231] ; National Natural Science Foundation of China[11575244] ; National Natural Science Foundation of China[11321092] |
WOS研究方向 | Physics |
语种 | 英语 |
出版者 | IOP PUBLISHING LTD |
WOS记录号 | WOS:000414270300001 |
源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/36043] |
专题 | 合肥物质科学研究院_中科院等离子体物理研究所 |
通讯作者 | Wu, Z. W. |
作者单位 | 1.Gen Atom, San Diego, CA 92186 USA 2.Natl Inst Fus Sci, Toki, Gifu 5095259, Japan 3.Grad Univ Adv Studies, Dept Fus Sci, Toki, Gifu 5095259, Japan 4.Univ Sci & Technol China, Hefei 230031, Anhui, Peoples R China 5.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Anhui, Peoples R China |
推荐引用方式 GB/T 7714 | Xu, Z.,Wu, Z. W.,Zhang, L.,et al. Investigation of impurity confinement in lower hybrid wave heated plasma on EAST tokamak[J]. NUCLEAR FUSION,2018,58(1):10. |
APA | Xu, Z..,Wu, Z. W..,Zhang, L..,Gao, W..,Ye, Y..,...&Guo, H. Y..(2018).Investigation of impurity confinement in lower hybrid wave heated plasma on EAST tokamak.NUCLEAR FUSION,58(1),10. |
MLA | Xu, Z.,et al."Investigation of impurity confinement in lower hybrid wave heated plasma on EAST tokamak".NUCLEAR FUSION 58.1(2018):10. |
入库方式: OAI收割
来源:合肥物质科学研究院
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