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タイトル	en Hydrogen Concentration of Co-deposited Carbon Films Produced in the Vicinity of Local Island Divertor in Large Helical Device
作成者	en "Hino, T. en Hirata, T. en Ashikawa, N. en Masusaki, S. en Yamauchi, Y. en Nobuta, Y. en Ohyabu, N. en Sagara, A. en Noda, N. en Komori, A. en Motojima, O. en LHD, experimental group"
アクセス権	metadata only access
内容注記	Abstract "It is quite important to evaluate hydrogen concentration of co-deposited carbon film/dust to estimate in-vessel tritium inventory in ITER. The co-deposited carbon films were prepared at the wall of pumping duct in Local Island Divertor experiments of LHD. The hydrogen concentration of the co-deposited carbon film at the wall not facing to the plasma with a low temperature was extremely high, 1.3 in the atomic ratio of H/C. This value is triple times higher than the previous value obtained by hydrogen ion irradiation to graphite. The crystal structure of the co-deposited carbon film observed by Raman spectroscopy showed very unique structure (polymeric a-C:H), which is well consistent with the high hydrogen concentration. The accumulation of in-vessel tritium inventory is also discussed."
日付	Issued2008-10-01
言語	eng
資源タイプ	research report
資源識別子	HDL http://hdl.handle.net/10655/2588 , URI https://nifs-repository.repo.nii.ac.jp/records/9619
収録誌情報	ISSN 0915-633X en Research Report NIFS-Series
コンテンツ更新日時	2023-08-19