Investigation of Carbon Films on Material Probes in the Vicinity of Local Island Divertor in the Large Helical Device
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概要
- 論文の詳細を見る
Two sets of material probes were installed in LHD in the vicinity of the Local Island Divertor (LID) head made of carbon fiber composite. One set of the material probes faced the LID head, while the other set was placed in a shallow line of sight to the head. Carbon films on the former and the later sets of probes are expected to be formed by the deposition of physically sputtered carbon atoms and chemically sputtered hydrocarbon, respectively, during the LID discharges. Surface morphology and thickness of the films, and the amount of retained hydrogen in the films were investigated, and hydrogen concentration in the probes was estimated. The hydrogen concentration in the carbon films on the probes placed in a shallow line of sight of the head was significantly large with the atomic ratio of H/C = 0.6-1.1.
- 社団法人 プラズマ・核融合学会の論文
著者
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OHYABU Nobuyoshi
National Insitute for Fusion Science
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KOMORI Akio
National Insitute for Fusion Science
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MASUZAKI Suguru
National Insitute for Fusion Science
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NODA Nobuaki
National Insitute for Fusion Science
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SAGARA Akio
National Insitute for Fusion Science
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MOTOJIMA Osamu
National Insitute for Fusion Science
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ASHIKAWA Naoko
National Institute for Fusion Science
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Hino Tomoaki
Laboratory Of Plasma Physics And Engineering Hokkaido University
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NOBUTA Yuji
Laboratory of Plasma Physics and Engineering, Hokkaido University
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Nobuta Yuji
Laboratory Of Plasma Physics And Engineering Hokkaido University
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HIRATA Tomoya
Laboratory of Plasma Physics and Engineering, Hokkaido University
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