Simulations of Ar seeding by SOLPS-ITER for a slot-type divertor concept

doi:10.1063/1.5133832

	Simulations of Ar seeding by SOLPS-ITER for a slot-type divertor concept
	Jia, Guozhang 3; Liu, Xiaoju 3; Xu, Guosheng 1,3; Wang, Liang 3; Zhu, Sizheng 3; Xie, Hai 3,4; Si, Hang 3; Sang, Chaofeng 2; Yang, Zhongshi 3; Xu, Jichan 3
刊名	PHYSICS OF PLASMAS
	2020-06-01
卷号	27
ISSN号	1070-664X
DOI	10.1063/1.5133832
通讯作者	Jia, Guozhang(gzjia@ipp.ac.cn)
英文摘要	In order to fulfill the requirements for future high-power and long-pulse discharges in the Experimental Advanced Superconducting Tokamak, the present lower graphite divertor will be upgraded with tungsten (W) materials. For one of the new divertor options obtained during the physics design phase, simulations of argon (Ar) seeding are performed by using the SOLPS-ITER code suite. Besides the deuterium and Ar species, all the ionization states of W species generated through physical sputtering have been included in the simulations. As the seeding rate increases, the total power dissipation dominated by Ar radiation increases gradually. Obvious Ar radiation loss in the divertor region is observed. Meanwhile, a high pressure area in the scrape-off layer side of the outer strike point is formed near the corner due to the closed structure. As a result, the outer divertor detaches before the inner divertor, and the maximum T-e at the outer target reduces to 5eV at a puffing rate of 4.0x10(19) atoms/s. The total heat flux onto the inner and outer target plates, dominated by the charged particles, can be reduced simultaneously. The sputtering rate of W atoms along the divertor plates and the distribution of W impurities in the poloidal cross section are given. The W concentration inside the last closed magnetic flux surface can be controlled to the order of 10(-5).
资助项目	National Key R&D Program of China[2017YFE0300400] ; National Key R&D Program of China[2017YFE0300402] ; National Key R&D Program of China[2017YFE0300501] ; National Key R&D Program of China[2018YFE0303103] ; CAS Key Research Program of Frontier Science[QYZDB-SSW-SLH001] ; National Magnetic Confinement Fusion Science Program of China[2015GB101003] ; NSFC[11505227] ; NSFC[11875287]
WOS关键词	ASDEX-UPGRADE
WOS研究方向	Physics
语种	英语
出版者	AMER INST PHYSICS
WOS记录号	WOS:000541898100001
资助机构	National Key R&D Program of China ; CAS Key Research Program of Frontier Science ; National Magnetic Confinement Fusion Science Program of China ; NSFC
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/43166]
专题	中国科学院合肥物质科学研究院
通讯作者	Jia, Guozhang
作者单位	1.Univ Sci & Technol China, Hefei 230029, Peoples R China 2.Dalian Univ Technol, Sch Phys, Minist Educ, Key Lab Mat Modificat Laser Ion & Electron Beams, Dalian 116024, Peoples R China 3.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China 4.Shenzhen Univ, Adv Energy Res Ctr, Shenzhen 518060, Peoples R China
推荐引用方式 GB/T 7714	Jia, Guozhang,Liu, Xiaoju,Xu, Guosheng,et al. Simulations of Ar seeding by SOLPS-ITER for a slot-type divertor concept[J]. PHYSICS OF PLASMAS,2020,27.
APA	Jia, Guozhang.,Liu, Xiaoju.,Xu, Guosheng.,Wang, Liang.,Zhu, Sizheng.,...&Li, Hang.(2020).Simulations of Ar seeding by SOLPS-ITER for a slot-type divertor concept.PHYSICS OF PLASMAS,27.
MLA	Jia, Guozhang,et al."Simulations of Ar seeding by SOLPS-ITER for a slot-type divertor concept".PHYSICS OF PLASMAS 27(2020).