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Study on divertor plasma behavior through sweeping strike point in new lower divertor on EAST

文献类型：期刊论文

作者Tao, Yu-Qiang1,2; Xu, Guo-Sheng1; Meng, Ling-Yi1,2; Liang, Rui-Rong1,2; Yu, Lin1,2; Liu, Xiang1; Yan, Ning1; Yang, Qing-Quan1; Lin, Xin1; Wang, Liang1,3
刊名CHINESE PHYSICS B
出版日期2022-06-01
卷号31
ISSN号1674-1056
关键词EAST tokamak divertor plasma sweeping strike point decay length
DOI10.1088/1674-1056/ac4a65
通讯作者Xu, Guo-Sheng(gsxu@ipp.ac.cn) ; Wang, Liang(lwang@ipp.ac.cn)
英文摘要A series of L-mode discharges have been conducted in the new 'corner slot' divertor on the Experimental Advanced Superconducting Tokamak (EAST) to study the divertor plasma behavior through sweeping strike point. The plasma control system controls the strike point sweeping from the horizontal target to the vertical target through poloidal field coils, with keeping the main plasma stability. The surface temperature of the divertor target cools down as the strike point moves away, indicating that sweeping strike point mitigates the heat load. To avoid the negative effect of probe tip damage, a method based on sweeping strike point is used to get the normalized profile and study the decay length of particle and heat flux on the divertor target lambda (js), lambda (q). In the discharges with high radio-frequency (RF) heating power, electron temperature T (e) is lower and lambda (js) is larger when the strike point locates on the horizontal target compared to the vertical target, probably due to the corner effect. In the Ohmic discharges, lambda (js), lambda (q) are much larger compared to the discharges with high RF heating power, which may be attributed to lower edge T (e).
资助项目National Key Research and Development Program of China[2017YFE0301300] ; National Natural Science Foundation of China[12005257] ; National Natural Science Foundation of China[12005004] ; National Natural Science Foundation of China[11905143] ; National Natural Science Foundation of China[11922513] ; Institute of Energy, Hefei Comprehensive National Science Center[GXXT-2020-004] ; CASHIPS Director's Fund[BJPY2019A01] ; CASHIPS Director's Fund[YZJJ2020QN13] ; Special Research Assistant Funding of CAS ; China Postdoctoral Science Foundation[2020M671913] ; Anhui Provincial Natural Science Foundation[2008085QA38]
WOS研究方向Physics
语种英语
出版者IOP Publishing Ltd
WOS记录号WOS:000813319000001
资助机构National Key Research and Development Program of China ; National Natural Science Foundation of China ; Institute of Energy, Hefei Comprehensive National Science Center ; CASHIPS Director's Fund ; Special Research Assistant Funding of CAS ; China Postdoctoral Science Foundation ; Anhui Provincial Natural Science Foundation
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/131265]  
专题中国科学院合肥物质科学研究院
通讯作者Xu, Guo-Sheng; Wang, Liang
作者单位1.Chinese Acad Sci, Inst Plasma Phys, Hefei Inst Phys Sci, Hefei 230031, Peoples R China
2.Univ Sci & Technol China, Hefei 230026, Peoples R China
3.Hefei Comprehens Natl Sci Ctr, Inst Energy, Hefei 230031, Peoples R China
推荐引用方式
GB/T 7714		 Tao, Yu-Qiang,Xu, Guo-Sheng,Meng, Ling-Yi,et al. Study on divertor plasma behavior through sweeping strike point in new lower divertor on EAST[J]. CHINESE PHYSICS B,2022,31.
APA Tao, Yu-Qiang.,Xu, Guo-Sheng.,Meng, Ling-Yi.,Liang, Rui-Rong.,Yu, Lin.,...&Wang, Liang.(2022).Study on divertor plasma behavior through sweeping strike point in new lower divertor on EAST.CHINESE PHYSICS B,31.
MLA Tao, Yu-Qiang,et al."Study on divertor plasma behavior through sweeping strike point in new lower divertor on EAST".CHINESE PHYSICS B 31(2022).

入库方式： OAI收割

来源：合肥物质科学研究院

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