Toroidal Distributions of Amounts of Retained Gases and Deposited Impurities during 13th Experimental Campaign in the LHD
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概要
- 論文の詳細を見る
The gas desorption behavior, and the amounts of retained gases and deposited impurities in the first wall during the 13th experimental campaign in the Large Helical Device (LHD) have been evaluated using a material probes technique. The desorption behavior of hydrogen and helium depended on the atomic composition of deposited impurities. The amount of retained hydrogen was large in the vicinity of the anodes used for the glow discharge conditioning (GDC). The amount of retained helium was small near the anodes in this campaign. The toroidal dependence on the amount of retained gas corresponded to the total time for the GDC and the gas species used for glow discharge in the final stage.
著者
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MASUZAKI Suguru
National Insitute for Fusion Science
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SAGARA Akio
National Insitute for Fusion Science
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ASHIKAWA Naoko
National Institute for Fusion Science
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YAMAUCHI Yuji
Hokkaido University, Kita-8, Nishi-5, Kita-ku, Sapporo 060-0808, Japan
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HINO Tomoaki
Hokkaido University, Kita-8, Nishi-5, Kita-ku, Sapporo 060-0808, Japan
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NOBUTA Yuji
Hokkaido University
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SHINODA Naoyuki
Hokkaido University
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YAMAUCHI Yuji
Hokkaido University
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HINO Tomoaki
Hokkaido University
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