中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 合肥物质科学研究院
  3. 中国科学院合肥物质科学研究院
Deuterium retention characteristics in Li film by coating and during flowing liquid Li limiter operation in experimental advanced superconducting tokamak

文献类型：期刊论文

作者Li,C L3,4; Zuo,G Z4; Maingi,R2; Cao,Bin4; Xu,W1,4; Meng,X C1,4; Sun,Z2,4; Huang,M4; Tang,Z L4; Zhang,D H4
刊名Plasma Physics and Controlled Fusion
出版日期2020-11-10
卷号63
关键词wall retention particle recycling lithium experimental advanced superconducting tokamak
ISSN号0741-3335
DOI10.1088/1361-6587/abc396
通讯作者Zuo,G Z()
英文摘要AbstractLithium (Li) is a promising low-Z material for particle recycling and impurity control to improve plasma performance in fusion devices. In the experimental advanced superconducting tokamak (EAST), Li coating has become a routine method for wall conditioning, and a flowing liquid Li (FLiLi) limiter has been successfully tested several times. Deuterium retention characteristics in the Li film coated on the international thermonuclear experimental reactor-like tungsten divertor and FLiLi during plasma discharges, which is important for the utilization of Li in future fusion devices, were investigated in EAST. It is found that the absorption of the fuel particles by Li coatings decreases gradually, and recycling gradually increases over a series of discharges. The maximum net amount of deuterium retained reached ～0.8 g, corresponding to 12% deuterium in the Li. This corresponds to a whole day’s worth of shots with a total of 87 plasma discharges and a total of ～640s plasma time after 11.75 g Li was deposited. Compared to the Li coating, it is shown that FLiLi continuously traps fuel particles and achieves a higher deuterium retention ratio over both the short- and long-term, leading to lower recycling. Meanwhile, it is also observed that the fuel particle retention ratio increases when FLiLi is closer to the plasma. This result is likely due to higher plasma heating power and limiter temperature, which cause an increased Li efflux from FLiLi due to a higher limiter temperature, which then redeposits on the other plasma-facing surfaces and increases fuel particle absorption. It is estimated that ?80% of the retained D particles are captured by the continual renewal of the Li redeposition film during the FLiLi operation. This investigation would also be useful for D/T retention in future fusion devices if Li is used as a plasma-facing component.
WOS关键词TRITIUM RETENTION ; LITHIUM LIMITER ; PLASMA ; DISCHARGES ; SURFACE ; BALANCE
资助项目National Key Research and Development Program of China[2017YFA0402500] ; National Key Research and Development Program of China[2017YFE0301100] ; National Nature Science Foundation of China[11625524] ; National Nature Science Foundation of China[11775261] ; National Nature Science Foundation of China[11905138] ; National Nature Science Foundation of China[11905148] ; National Nature Science Foundation of China[11905254]
WOS研究方向Physics
语种英语
WOS记录号IOP:0741-3335-63-1-ABC396
出版者IOP Publishing
资助机构National Key Research and Development Program of China ; National Nature Science Foundation of China
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/104957]  
专题中国科学院合肥物质科学研究院
通讯作者Zuo,G Z
作者单位1.Institute of Energy, Hefei Comprehensive National Science Center, Hefei, Anhui 230026, People’s Republic of China
2.Princeton University Plasma Physics Laboratory Princeton, Princeton, NJ 08543, United States of America
3.University of Science and Technology of China, Hefei, Anhui 230026, People’s Republic of China
4.Institute of Plasma Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui 230031, People’s Republic of China
5.CAS Key Laboratory of Photovoltaic and Energy Conservation Materials, Hefei 230031, People’s Republic of China
6.Johns Hopkins University, Baltimore, MD 21211, United States of America
7.Center for Plasma Material Interactions, Department of Nuclear, Plasma and Radiological Engineering, University of Illinois Urbana-Champaign, Urbana, IL 61801, United States of America
8.Department of Physics, Nanchang University, Nanchang 330031, People’s Republic of China
推荐引用方式
GB/T 7714		 Li,C L,Zuo,G Z,Maingi,R,et al. Deuterium retention characteristics in Li film by coating and during flowing liquid Li limiter operation in experimental advanced superconducting tokamak[J]. Plasma Physics and Controlled Fusion,2020,63.
APA Li,C L.,Zuo,G Z.,Maingi,R.,Cao,Bin.,Xu,W.,...&Hu,J S.(2020).Deuterium retention characteristics in Li film by coating and during flowing liquid Li limiter operation in experimental advanced superconducting tokamak.Plasma Physics and Controlled Fusion,63.
MLA Li,C L,et al."Deuterium retention characteristics in Li film by coating and during flowing liquid Li limiter operation in experimental advanced superconducting tokamak".Plasma Physics and Controlled Fusion 63(2020).

入库方式： OAI收割

来源：合肥物质科学研究院

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。