Plasma cleaning of ITER first mirrors
文献类型:期刊论文
作者 | Moser, L.1; Marot, L.1; Steiner, R.1; Reichle, R.2; Leipold, F.2; Vorpahl, C.2; Le Guern, F.3; Walach, U.3; Alberti, S.4; Furno, I.4 |
刊名 | PHYSICA SCRIPTA |
出版日期 | 2017-12-01 |
卷号 | T170期号:无页码:7 |
ISSN号 | 0031-8949 |
关键词 | first mirror ITER plasma cleaning repetitive cleaning |
DOI | 10.1088/1402-4896/aa8f30 |
英文摘要 | Nuclear fusion is an extremely attractive option for future generations to compete with the strong increase in energy consumption. Proper control of the fusion plasma is mandatory to reach the ambitious objectives set while preserving the machine's integrity, which requests a large number of plasma diagnostic systems. Due to the large neutron flux expected in the International Thermonuclear Experimental Reactor (ITER), regular windows or fibre optics are unusable and were replaced by so-called metallic first mirrors (FMs) embedded in the neutron shielding, forming an optical labyrinth. Materials eroded from the first wall reactor through physical or chemical sputtering will migrate and will be deposited onto mirrors. Mirrors subject to net deposition will suffer from reflectivity losses due to the deposition of impurities. Cleaning systems of metallic FMs are required in more than 20 optical diagnostic systems in ITER. Plasma cleaning using radio frequency (RF) generated plasmas is currently being considered the most promising in situ cleaning technique. An update of recent results obtained with this technique will be presented. These include the demonstration of cleaning of several deposit types (beryllium, tungsten and beryllium proxy, i.e. aluminium) at 13.56 or 60 MHz as well as large scale cleaning (mirror size: 200 x 300 mm(2)). Tests under a strong magnetic field up to 3.5 T in laboratory and first experiments of RF plasma cleaning in EAST tokamak will also be discussed. A specific focus will be given on repetitive cleaning experiments performed on several FM material candidates. |
WOS关键词 | DIAGNOSTICS |
资助项目 | Swiss Federal Office of Energy ; Federal Office for Education and Science ; Swiss National Foundation (SNF) ; Swiss Nanoscience Institute (SNI) ; Fusion for Energy[F4E-OPE-0649] |
WOS研究方向 | Physics |
语种 | 英语 |
出版者 | IOP PUBLISHING LTD |
WOS记录号 | WOS:000414120500047 |
源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/35690] |
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 | Marot, L. |
作者单位 | 1.Univ Basel, Dept Phys, Klingelbergstr 82, CH-4056 Basel, Switzerland 2.ITER Org, Route Vinon Sur Verdon, F-13115 St Paul Les Durance, France 3.F4E, C Josep Pla 2, E-08019 Barcelona, Spain 4.Ecole Polytech Fed Lausanne, SPC, CH-1015 Lausanne, Switzerland 5.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Anhui, Peoples R China |
推荐引用方式 GB/T 7714 | Moser, L.,Marot, L.,Steiner, R.,et al. Plasma cleaning of ITER first mirrors[J]. PHYSICA SCRIPTA,2017,T170(无):7. |
APA | Moser, L..,Marot, L..,Steiner, R..,Reichle, R..,Leipold, F..,...&Meyer, E..(2017).Plasma cleaning of ITER first mirrors.PHYSICA SCRIPTA,T170(无),7. |
MLA | Moser, L.,et al."Plasma cleaning of ITER first mirrors".PHYSICA SCRIPTA T170.无(2017):7. |
入库方式: OAI收割
来源:合肥物质科学研究院
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