A tritium permeation 'short cut' for plasma-facing components of fusion reactors
文献类型:期刊论文
作者 | Zhou, Hai-Shan2,3![]() ![]() |
刊名 | NUCLEAR FUSION
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出版日期 | 2019 |
卷号 | 59期号:1页码:5 |
关键词 | tritium deuterium permeation ITER PFC |
ISSN号 | 0029-5515 |
DOI | 10.1088/1741-4326/aaefd0 |
通讯作者 | Luo, Guang-Nan(gnluo@ipp.ac.cn) |
英文摘要 | 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. |
WOS关键词 | DEUTERIUM PERMEATION ; RETENTION BEHAVIOR ; HEAT-FLUX ; HYDROGEN |
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] |
WOS研究方向 | Physics |
语种 | 英语 |
WOS记录号 | WOS:000452440600001 |
出版者 | IOP PUBLISHING LTD |
资助机构 | 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 |
源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/40695] ![]() |
专题 | 合肥物质科学研究院_中科院等离子体物理研究所 |
通讯作者 | Luo, Guang-Nan |
作者单位 | 1.Osaka City Univ, Osaka 5588585, Japan 2.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Anhui, Peoples R China 3.Univ Sci & Technol China, Hefei 230031, Anhui, Peoples R China 4.Shizuoka Univ, Grad Sch Sci, Shizuoka 4228529, Japan |
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. |
入库方式: OAI收割
来源:合肥物质科学研究院
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