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Plasma-wall interac...
Plasma-wall interaction on the divertor tiles of JET ITER-like wall from the viewpoint of micro/nanoscopic observations
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- Tokitani, M. (author)
- Natl Inst Fus Sci, 322-6 Oroshi, Toki, Gifu 5095292, Japan.
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- Miyamoto, M. (author)
- Shimane Univ, Matsue, Shimane 6908504, Japan.
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- Masuzaki, S. (author)
- Natl Inst Fus Sci, 322-6 Oroshi, Toki, Gifu 5095292, Japan.
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- Sakamoto, R. (author)
- Natl Inst Fus Sci, 322-6 Oroshi, Toki, Gifu 5095292, Japan.
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- Oya, Y. (author)
- Shizuoka Univ, Shizuoka 4228529, Japan.
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- Hatano, Y. (author)
- Univ Toyama, Toyama 9308555, Japan.
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- Otsuka, T. (author)
- Kindai Univ, Higashiosaka, Osaka 5778502, Japan.
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- Oyaidzu, M. (author)
- QST, Aomori 0393212, Japan.
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- Kurotaki, H. (author)
- QST, Aomori 0393212, Japan.
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- Suzuki, T. (author)
- QST, Aomori 0393212, Japan.
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- Hamaguchi, D. (author)
- QST, Aomori 0393212, Japan.
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- Isobe, K. (author)
- QST, Aomori 0393212, Japan.
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- Asakura, N. (author)
- QST, Aomori 0393212, Japan.
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- Widdowson, A. (author)
- EUROfus Consortium, Culham Sci Ctr, JET, Abingdon OX14 3DB, Oxon, England.
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- Heinola, K. (author)
- Univ Helsinki, POB 64, FI-00560 Helsinki, Finland.
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- Rubel, Marek (author)
- KTH,Royal Inst Technol KTH, S-10044 Stockholm, Sweden.
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- Andersson Sundén, Erik (author)
- Uppsala universitet,Tillämpad kärnfysik
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- Binda, Federico, 1987- (author)
- Uppsala universitet,Tillämpad kärnfysik
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- Cecconello, Marco (author)
- Uppsala universitet,Tillämpad kärnfysik
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- Conroy, Sean (author)
- Uppsala universitet,Tillämpad kärnfysik
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- Dzysiuk, Nataliia (author)
- Uppsala universitet,Tillämpad kärnfysik
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- Ericsson, Göran (author)
- Uppsala universitet,Tillämpad kärnfysik
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- Eriksson, Jacob, Dr, 1985- (author)
- Uppsala universitet,Tillämpad kärnfysik
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- Hellesen, Carl, 1980- (author)
- Uppsala universitet,Tillämpad kärnfysik
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- Hjalmarsson, Anders (author)
- Uppsala universitet,Tillämpad kärnfysik
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- Possnert, Göran, 1951- (author)
- Uppsala universitet,Tillämpad kärnfysik
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- Sjöstrand, Henrik, 1978- (author)
- Uppsala universitet,Tillämpad kärnfysik
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- Skiba, Mateusz, 1985- (author)
- Uppsala universitet,Tillämpad kärnfysik
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- Weiszflog, Matthias (author)
- Uppsala universitet,Tillämpad kärnfysik
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Zychor, I. (author)
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Natl Inst Fus Sci, 322-6 Oroshi, Toki, Gifu 5095292, Japan Shimane Univ, Matsue, Shimane 6908504, Japan. (creator_code:org_t)
- Elsevier, 2018
- 2018
- English.
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In: Fusion engineering and design. - : Elsevier. - 0920-3796 .- 1873-7196. ; 136, s. 199-204
- Related links:
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https://helda.helsin...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Subject headings
Close
- Micro/nanoscopic observations on the surface of the divertor tiles used in the first campaign (2011-2012) of the JET tokamak with ITER-like Wall (JET ILW) have been carried out by means of several material analysis techniques. Previous results from the inner divertor were reported for a single poloidal section of the tile numbers 1, 3 and 4, i.e., upper, vertical and horizontal targets, respectively. The formation of the thick stratified mixed-material deposition layer on tiles 1 and 4, and erosion on tile 3 were identified. This study is mostly focused on the outer divertor: tiles 6, 7 and 8. In contrast to the inner tile, remarkable surface modifications have not been observed on the vertical target (tiles 7 and 8) where sputtering erosion and impurity deposition would have been almost balanced. Only a specific part of tile 6 (horizontal target) located near the exhaust channel was covered with a stratified ("geological-like") mixed-material deposition layer which mainly included Be and Ni with the thickness of similar to 2 mu m. Special feature of this mixed layer was that a certain amount of nitrogen (N) was clearly detected in the layer. Since the concentration of N varied with the depth position, it could be depended on the amount of that gas puffed for plasma edge cooling during the JET experimental campaign. In addition to the outer divertor tiles, a very interesting feature of the local erosion and deposition effects is reported in this paper.
Subject headings
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
- NATURVETENSKAP -- Fysik -- Fusion, plasma och rymdfysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Fusion, Plasma and Space Physics (hsv//eng)
Keyword
- JET-ILW
- Divertor
- Erosion-deposition
- Fuel inventory
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Tokitani, M.
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Miyamoto, M.
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Masuzaki, S.
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Sakamoto, R.
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Oya, Y.
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Hatano, Y.
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Otsuka, T.
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Oyaidzu, M.
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Kurotaki, H.
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Suzuki, T.
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Hamaguchi, D.
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Isobe, K.
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Asakura, N.
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Widdowson, A.
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Heinola, K.
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Rubel, Marek
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Andersson Sundén ...
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Binda, Federico, ...
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Cecconello, Marc ...
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Conroy, Sean
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Dzysiuk, Natalii ...
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Ericsson, Göran
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Eriksson, Jacob, ...
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Hellesen, Carl, ...
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Hjalmarsson, And ...
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Possnert, Göran, ...
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Sjöstrand, Henri ...
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Skiba, Mateusz, ...
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Weiszflog, Matth ...
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Zychor, I.
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Fusion Plasma an ...
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Fusion engineeri ...
- By the university
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Royal Institute of Technology
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Uppsala University