Achieving temporary divertor plasma detachment with MARFE events by pellet injection in the EAST superconducting tokamak

doi:10.1088/1009-0630/19/1/015101

CORC > 合肥物质科学研究院 > 中国科学院合肥物质科学研究院 > 中科院等离子体物理研究所

	Achieving temporary divertor plasma detachment with MARFE events by pellet injection in the EAST superconducting tokamak
	Deng, Guozhong 1,2; Wang, Liang 1; Liu, Xiaoju 1; Duan, Yanmin 1; Hu, Jiansheng1 ; Li, Changzheng 1; Zhang, Ling 1; Liu, Shaocheng 1; Wang, Huiqian 1; Chen, Liang1
刊名	PLASMA SCIENCE & TECHNOLOGY
	2017
卷号	19 期号:1 页码:1-7
关键词	Divertor Marfe Pellet Injection
DOI	10.1088/1009-0630/19/1/015101
文献子类	Article
英文摘要	A new pellet injection system has been equipped on the experimental advanced superconducting tokamak (EAST) in the 2012 campaign, with a pellet size of phi 2mm. x. 2 mm, a frequency of 1Hz-10 Hz and velocity of 150 m s(-1) -300 m s(-1). The deuterium pellet is well-known for plasma fuelling as well as for. triggering the edge localized mode (ELM). In the 2012 campaign, pellet injection experiments were successfully carried out on EAST. Temporary plasma detachment achieved by deuterium pellets has been observed in a double null (DN) divertor configuration, with multi-pellet injections at a repetition frequency of 2 Hz. The partial detachment of the outer divertors and complete detachment of the inner divertors was achieved after 35 ms of each pellet injection, which have a duration of 30-60 ms with the maximum degree of detachment (DOD) reaching 3.5 and 37, respectively. Meanwhile, the multifaceted asymmetric radiation from the edge (MARFE) phenomena was also observed at the high field side (HFS) near both the lower and upper X-points with radiation loss suddenly increased to about 15%-70%, which may be the main cause of divertor plasma detachment. The temporary detachment induced by pellet injection may act as a new way to study divertor detachment behaviors.
WOS关键词	X-POINT MARFE
WOS研究方向	Physics
语种	英语
WOS记录号	WOS:000394001700004
资助机构	National Natural Science Foundation of China(11575236 ; National Natural Science Foundation of China(11575236 ; National Natural Science Foundation of China(11575236 ; National Natural Science Foundation of China(11575236 ; National Natural Science Foundation of China(11575236 ; National Natural Science Foundation of China(11575236 ; National Natural Science Foundation of China(11575236 ; National Natural Science Foundation of China(11575236 ; National Magnetic Confinement Fusion Science Program of China(2013GB107003 ; National Magnetic Confinement Fusion Science Program of China(2013GB107003 ; National Magnetic Confinement Fusion Science Program of China(2013GB107003 ; National Magnetic Confinement Fusion Science Program of China(2013GB107003 ; National Magnetic Confinement Fusion Science Program of China(2013GB107003 ; National Magnetic Confinement Fusion Science Program of China(2013GB107003 ; National Magnetic Confinement Fusion Science Program of China(2013GB107003 ; National Magnetic Confinement Fusion Science Program of China(2013GB107003 ; 11275231 ; 11275231 ; 11275231 ; 11275231 ; 11275231 ; 11275231 ; 11275231 ; 11275231 ; 2014GB106005 ; 2014GB106005 ; 2014GB106005 ; 2014GB106005 ; 2014GB106005 ; 2014GB106005 ; 2014GB106005 ; 2014GB106005 ; 11305206) ; 11305206) ; 11305206) ; 11305206) ; 11305206) ; 11305206) ; 11305206) ; 11305206) ; 2015GB101000) ; 2015GB101000) ; 2015GB101000) ; 2015GB101000) ; 2015GB101000) ; 2015GB101000) ; 2015GB101000) ; 2015GB101000) ; National Natural Science Foundation of China(11575236 ; National Natural Science Foundation of China(11575236 ; National Natural Science Foundation of China(11575236 ; National Natural Science Foundation of China(11575236 ; National Natural Science Foundation of China(11575236 ; National Natural Science Foundation of China(11575236 ; National Natural Science Foundation of China(11575236 ; National Natural Science Foundation of China(11575236 ; National Magnetic Confinement Fusion Science Program of China(2013GB107003 ; National Magnetic Confinement Fusion Science Program of China(2013GB107003 ; National Magnetic Confinement Fusion Science Program of China(2013GB107003 ; National Magnetic Confinement Fusion Science Program of China(2013GB107003 ; National Magnetic Confinement Fusion Science Program of China(2013GB107003 ; National Magnetic Confinement Fusion Science Program of China(2013GB107003 ; National Magnetic Confinement Fusion Science Program of China(2013GB107003 ; National Magnetic Confinement Fusion Science Program of China(2013GB107003 ; 11275231 ; 11275231 ; 11275231 ; 11275231 ; 11275231 ; 11275231 ; 11275231 ; 11275231 ; 2014GB106005 ; 2014GB106005 ; 2014GB106005 ; 2014GB106005 ; 2014GB106005 ; 2014GB106005 ; 2014GB106005 ; 2014GB106005 ; 11305206) ; 11305206) ; 11305206) ; 11305206) ; 11305206) ; 11305206) ; 11305206) ; 11305206) ; 2015GB101000) ; 2015GB101000) ; 2015GB101000) ; 2015GB101000) ; 2015GB101000) ; 2015GB101000) ; 2015GB101000) ; 2015GB101000)
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/31677]
专题	合肥物质科学研究院_中科院等离子体物理研究所
作者单位	1.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China 2.Univ Sci & Technol China, Hefei 230026, Peoples R China
推荐引用方式 GB/T 7714	Deng, Guozhong,Wang, Liang,Liu, Xiaoju,et al. Achieving temporary divertor plasma detachment with MARFE events by pellet injection in the EAST superconducting tokamak[J]. PLASMA SCIENCE & TECHNOLOGY,2017,19(1):1-7.
APA	Deng, Guozhong.,Wang, Liang.,Liu, Xiaoju.,Duan, Yanmin.,Hu, Jiansheng.,...&EAST Team.(2017).Achieving temporary divertor plasma detachment with MARFE events by pellet injection in the EAST superconducting tokamak.PLASMA SCIENCE & TECHNOLOGY,19(1),1-7.
MLA	Deng, Guozhong,et al."Achieving temporary divertor plasma detachment with MARFE events by pellet injection in the EAST superconducting tokamak".PLASMA SCIENCE & TECHNOLOGY 19.1(2017):1-7.