Preliminary experimental research on RF coupling efficiency of CRAFT NNBI prototype ion source

doi:10.1088/1402-4896/acfe5c

	Preliminary experimental research on RF coupling efficiency of CRAFT NNBI prototype ion source
	Wang, Na 1,2; Liu, Zhimin 1,2; Wei, Jianglong 1,2; Xie, Yahong 1,2; Yang, Yuwen 1,2; Jiang, Caichao 1,2; Gu, Yuming 2; Su, Guojian 2; Peng, Xufeng 1,2; Xie, Junwei 1,2
刊名	PHYSICA SCRIPTA
	2023-11-01
卷号	98
关键词	CRAFT NNBI RF ion source coupling efficiency
ISSN号	0031-8949
DOI	10.1088/1402-4896/acfe5c
通讯作者	Xie, Yahong(xieyh@ipp.ac.cn)
英文摘要	A radio frequency inductively coupled plasma source was chose as the prototype ion source for CRFAT NNBI system. The RF coupling efficiency of this negative ion(H-) source is researched by experiment. The effect of the RF ion source's multi-cusp confinement magnet on the RF coupling efficiency is focused on. It is found that the RF ion source, equipped with a linear type cusp magnet array on the expansion chamber walls, exhibits a higher efficiency of 2% to 6.6% compared to the checkerboard type. Furthermore, the RF coupling efficiency improves by approximately 9% when a confinement magnet is used, as opposed to not having one. The variations in bias voltage have no impact on the RF coupling efficiency. Nonetheless, variations in the magnetic field within the driver region caused by changes in the PG current induce an impact on the plasma in that region. When the PG current was raised from 800 A to 2500 A, it led to a minor reduction in RF coupling efficiency of approximately 2%.
资助项目	This work was supported by the Comprehensive Research Facility for Fusion Technology Program of China (No. 2018-000052-73-01-001228), National Natural Science Foundation of China (No. 11975263) and the National Key Ramp;D Program of China (No. 2017YFE0300[2018-000052-73-01-001228] ; Comprehensive Research Facility for Fusion Technology Program of China[11975263] ; National Natural Science Foundation of China[2017YFE0300101] ; National Key Ramp;D Program of China
WOS关键词	DESIGN ; NBI
WOS研究方向	Physics
语种	英语
出版者	IOP Publishing Ltd
WOS记录号	WOS:001082547500001
资助机构	This work was supported by the Comprehensive Research Facility for Fusion Technology Program of China (No. 2018-000052-73-01-001228), National Natural Science Foundation of China (No. 11975263) and the National Key Ramp;D Program of China (No. 2017YFE0300 ; Comprehensive Research Facility for Fusion Technology Program of China ; National Natural Science Foundation of China ; National Key Ramp;D Program of China
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/133394]
专题	中国科学院合肥物质科学研究院
通讯作者	Xie, Yahong
作者单位	1.Univ Sci & Technol China, Hefei 230026, Peoples R China 2.Hefei Inst Phys Sci, Inst Phys Sci, Hefei 230031, Peoples R China
推荐引用方式 GB/T 7714	Wang, Na,Liu, Zhimin,Wei, Jianglong,et al. Preliminary experimental research on RF coupling efficiency of CRAFT NNBI prototype ion source[J]. PHYSICA SCRIPTA,2023,98.
APA	Wang, Na.,Liu, Zhimin.,Wei, Jianglong.,Xie, Yahong.,Yang, Yuwen.,...&Xie, Yuanlai.(2023).Preliminary experimental research on RF coupling efficiency of CRAFT NNBI prototype ion source.PHYSICA SCRIPTA,98.
MLA	Wang, Na,et al."Preliminary experimental research on RF coupling efficiency of CRAFT NNBI prototype ion source".PHYSICA SCRIPTA 98(2023).