Upgrade of the magnetic diagnostic system for restart of HT-6M operation

doi:10.1088/1674-1056/ac7f93

	Upgrade of the magnetic diagnostic system for restart of HT-6M operation
	Chen, Li-Xing 1,2; Shen, Biao 2; Chen, Da-Long 2; Luo, Zheng-Ping 2; Zhang, Zu-Chao 2; Chen, Ying 2; Wang, Yong 2; Qian, Jin-Ping 2
刊名	CHINESE PHYSICS B
	2022-11-01
卷号	31
关键词	HT-6M null field magnetic measurement high frequency calibration
ISSN号	1674-1056
DOI	10.1088/1674-1056/ac7f93
通讯作者	Chen, Da-Long(cdalong@ipp.ac.cn) ; Luo, Zheng-Ping(zhpluo@ipp.ac.cn)
英文摘要	The HT-6M tokamak at the Thailand Institute of Nuclear Technology has been restarted. In order to ensure the smooth breakdown of plasma and obtain plasma discharge parameters, optimization of the poloidal field coils and upgrade of the magnetic diagnostics are described in this article. A perfect null field (stray field in the main chamber < 10 G) is obtained using an ohmic heating field. To obtain important information about the plasma, an external magnetic diagnostics system is designed and calibrated, including a Rogowski coil (measuring plasma current), a magnetic probe (measuring external field), diamagnetic loops (measuring beta (p)) and so on. In order to realize high-frequency signal measurement and transmission, a series of frequency responses with the magnetic probe and transmission line are tested. Later, to verify the null field, a fitting code is developed to reconstruct the stray field in the vacuum chamber based on magnetic probe measurements and flux loops. The results show that the error is within 1.5%. This indicates the accuracy of the magnetic measurement system and ensures the preparation for the breakdown of plasma.
资助项目	National MCF Energy Research and Development Program of China ; National Natural Science Foundation of China ; Comprehensive Research Facility for Fusion Technology Program of China ; [2018YFE0302100] ; [2018YFE0301105] ; [11875291] ; [2018-000052-73-01-001228]
WOS关键词	RECONSTRUCTION ; EQUILIBRIUM
WOS研究方向	Physics
语种	英语
出版者	IOP Publishing Ltd
WOS记录号	WOS:000889806700001
资助机构	National MCF Energy Research and Development Program of China ; National Natural Science Foundation of China ; Comprehensive Research Facility for Fusion Technology Program of China
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/131640]
专题	中国科学院合肥物质科学研究院
通讯作者	Chen, Da-Long; Luo, Zheng-Ping
作者单位	1.Univ Sci & Technol China, Hefei 230026, Peoples R China 2.Chinese Acad Sci, Inst Plasma Phys, Hefei Inst Phys Sci, Hefei 230026, Peoples R China
推荐引用方式 GB/T 7714	Chen, Li-Xing,Shen, Biao,Chen, Da-Long,et al. Upgrade of the magnetic diagnostic system for restart of HT-6M operation[J]. CHINESE PHYSICS B,2022,31.
APA	Chen, Li-Xing.,Shen, Biao.,Chen, Da-Long.,Luo, Zheng-Ping.,Zhang, Zu-Chao.,...&Qian, Jin-Ping.(2022).Upgrade of the magnetic diagnostic system for restart of HT-6M operation.CHINESE PHYSICS B,31.
MLA	Chen, Li-Xing,et al."Upgrade of the magnetic diagnostic system for restart of HT-6M operation".CHINESE PHYSICS B 31(2022).