In situ measurements of low energy D plasma-driven permeation through He pre-damaged W

doi:10.1088/1741-4326/ac4716

	In situ measurements of low energy D plasma-driven permeation through He pre-damaged W
	Li, Xue-Chun 1,2; Zhou, Hai-Shan 1,2; Liu, Hao-Dong 1; Wang, Lu 1,2; Luo, Guang-Nan 1,2
刊名	NUCLEAR FUSION
	2022-06-01
卷号	62
关键词	deuterium permeation tungsten helium retention fusion reactor
ISSN号	0029-5515
DOI	10.1088/1741-4326/ac4716
通讯作者	Zhou, Hai-Shan(haishanzhou@ipp.ac.cn)
英文摘要	Experiments concerning the effect of helium (He) plasma exposure on deuterium (D) plasma-driven permeation through tungsten (W) foils in a linear plasma facility have been performed. 0.05 mm thick W foils were exposed to similar to 2 x 10(20) m(-2) s(-1) He plasma with various fluences at 883 K. After He irradiating, D permeation tests were performed for the samples and retention was also measured by high-resolution thermal desorption spectroscopy. It was observed that He pre-irradiation resulted in a significant reduction of D permeation and retention in W. Microstructure observation indicated that the surfaces of the samples after He irradiation turned rough and He nanobubbles were formed near the surface. Defective structures including He nanobubbles likely enhance D reemission and accordingly reduce the permeation and retention in He pre-irradiated W.
资助项目	National Magnetic Confinement Fusion Science Program of China[2019YFE03130004] ; National Natural Science Foundation of China[11875288] ; National Natural Science Foundation of China[11975260] ; Youth Innovation Promotion Association of the Chinese Academy of Sciences[2018484] ; Science Foundation of Institute of Plasma Physics, Chinese Academy of Sciences[DSJJ-2020-06]
WOS关键词	DEUTERIUM-RETENTION BEHAVIOR ; TUNGSTEN ; HELIUM ; IRRADIATION ; MECHANISM
WOS研究方向	Physics
语种	英语
出版者	IOP Publishing Ltd
WOS记录号	WOS:000775651800001
资助机构	National Magnetic Confinement Fusion Science Program of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Science Foundation of Institute of Plasma Physics, Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/128231]
专题	中国科学院合肥物质科学研究院
通讯作者	Zhou, Hai-Shan
作者单位	1.Chinese Acad Sci, Inst Plasma Phys, HFIPS, Hefei 230031, Peoples R China 2.Univ Sci & Technol China, Hefei 230026, Peoples R China
推荐引用方式 GB/T 7714	Li, Xue-Chun,Zhou, Hai-Shan,Liu, Hao-Dong,et al. In situ measurements of low energy D plasma-driven permeation through He pre-damaged W[J]. NUCLEAR FUSION,2022,62.
APA	Li, Xue-Chun,Zhou, Hai-Shan,Liu, Hao-Dong,Wang, Lu,&Luo, Guang-Nan.(2022).In situ measurements of low energy D plasma-driven permeation through He pre-damaged W.NUCLEAR FUSION,62.
MLA	Li, Xue-Chun,et al."In situ measurements of low energy D plasma-driven permeation through He pre-damaged W".NUCLEAR FUSION 62(2022).