A tritium permeation 'short cut' for plasma-facing components of fusion reactors

doi:10.1088/1741-4326/aaefd0

	A tritium permeation 'short cut' for plasma-facing components of fusion reactors
	Zhou, Hai-Shan1,2 ; Liu, Hao-Dong 1,2; Wang, Lu 1,2; Yang, Xin 1; Oya, Yasuhisa 3; Zhao, Ming-Zhong 3; Tanabe, Tetsuo 4; Xu, Yu-Ping 1; Yuan, Xiao-Gang 1; Li, Bo1 ; Ding, Fang1,2 ; Luo, Guang-Nan1,2
	2019
发表期刊	NUCLEAR FUSION
ISSN	0029-5515
通讯作者	Luo, Guang-Nan(gnluo@ipp.ac.cn)
摘要	In ITER and other fusion reactors, plasma-facing components (PFCs) will be subjected to intense plasma/neutral fluxes and tritium (T) permeation issue will be raised. In the present work, first-of-a-kind experiments on hydrogen isotope (D) transport through ITER-like PFC mock-ups have been demonstrated in a linear plasma facility. 8mm thick W tiles with 0.5 mm gaps are installed on structural materials and exposed to D plasmas. The angle between the gaps and the magnetic field line is set to be 5 degrees to ensure the structural materials behind W are not exposed to charged D ions from plasma. When plasma is started up, the sample mock- ups are found to be penetrated by D within tens of seconds, suggesting that D can penetrate through heat sink of PFCs without passing through the thick W armor, i.e. the gaps act as a hydrogen isotope leakage 'short cut'. To make a straightforward comparison of permeation flux for these materials, direct D plasma-driven permeation (PDP) experiments through W and structural materials are performed as well. The measured permeated D fluxes through structural materials are found to be orders of magnitude higher than that of W, indicating T transport from the gaps of PFCs may contribute a remarkable fraction of total leakage in reactors. In the latter part of this paper, a solution to address the permeation issue is proposed.
关键词	tritium deuterium permeation ITER PFC
DOI	10.1088/1741-4326/aaefd0
关键词[WOS]	DEUTERIUM PERMEATION ; RETENTION BEHAVIOR ; HEAT-FLUX ; HYDROGEN
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[11505232] ; National Magnetic Confinement Fusion Science Program of China[2015GB109001] ; Youth Innovation Promotion Association CAS ; Science Foundation of Institute of Plasma Physics, Chinese Academy of Sciences[DSJJ-16-JC01] ; National Natural Science Foundation of China[11505232] ; National Magnetic Confinement Fusion Science Program of China[2015GB109001] ; Youth Innovation Promotion Association CAS ; Science Foundation of Institute of Plasma Physics, Chinese Academy of Sciences[DSJJ-16-JC01]
项目资助者	National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Science Foundation of Institute of Plasma Physics, Chinese Academy of Sciences ; Science Foundation of Institute of Plasma Physics, Chinese Academy of Sciences ; Science Foundation of Institute of Plasma Physics, Chinese Academy of Sciences ; Science Foundation of Institute of Plasma Physics, Chinese Academy of Sciences ; Science Foundation of Institute of Plasma Physics, Chinese Academy of Sciences ; Science Foundation of Institute of Plasma Physics, Chinese Academy of Sciences ; Science Foundation of Institute of Plasma Physics, Chinese Academy of Sciences ; Science Foundation of Institute of Plasma Physics, Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Science Foundation of Institute of Plasma Physics, Chinese Academy of Sciences ; Science Foundation of Institute of Plasma Physics, Chinese Academy of Sciences ; Science Foundation of Institute of Plasma Physics, Chinese Academy of Sciences ; Science Foundation of Institute of Plasma Physics, Chinese Academy of Sciences ; Science Foundation of Institute of Plasma Physics, Chinese Academy of Sciences ; Science Foundation of Institute of Plasma Physics, Chinese Academy of Sciences ; Science Foundation of Institute of Plasma Physics, Chinese Academy of Sciences ; Science Foundation of Institute of Plasma Physics, Chinese Academy of Sciences
WOS研究方向	Physics
WOS类目	Physics, Fluids & Plasmas
WOS记录号	WOS:000452440600001
出版者	IOP PUBLISHING LTD
引用统计	被引频次：16[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.hfcas.ac.cn:8080/handle/334002/40695
专题	中科院等离子体物理研究所
通讯作者	Luo, Guang-Nan
作者单位	1.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Anhui, Peoples R China 2.Univ Sci & Technol China, Hefei 230031, Anhui, Peoples R China 3.Shizuoka Univ, Grad Sch Sci, Shizuoka 4228529, Japan 4.Osaka City Univ, Osaka 5588585, Japan
第一作者单位	中科院等离子体物理研究所
通讯作者单位	中科院等离子体物理研究所
推荐引用方式 GB/T 7714	Zhou, Hai-Shan,Liu, Hao-Dong,Wang, Lu,et al. A tritium permeation 'short cut' for plasma-facing components of fusion reactors[J]. NUCLEAR FUSION,2019,59(1):5.
APA	Zhou, Hai-Shan.,Liu, Hao-Dong.,Wang, Lu.,Yang, Xin.,Oya, Yasuhisa.,...&Luo, Guang-Nan.(2019).A tritium permeation 'short cut' for plasma-facing components of fusion reactors.NUCLEAR FUSION,59(1),5.
MLA	Zhou, Hai-Shan,et al."A tritium permeation 'short cut' for plasma-facing components of fusion reactors".NUCLEAR FUSION 59.1(2019):5.