Neutral Gas Compression in the Helical Divertor with a Baffle Structure in the LHD Heliotron
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概要
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The helical divertor in the Large Helical Device (LHD) was partially modified before the experimental campaign in 2010 to demonstrate the ability of particle control by installing a baffle structure. The baffle structure consists of water cooled divertor plates combined with baffle plates and a dome in the private region. The neutral pressures in the modified and an existing unmodified helical divertors have been measured by using fast ion gauges during the campaign. The recycled neutral gas was successfully compressed in the modified divertor during discharges, and more than ten times higher pressure was observed there than in the unmodified divertor as expected from the neutral transport calculations.
著者
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KOMORI Akio
National Insitute for Fusion Science
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YAMADA Hiroshi
National Insitute for Fusion Science
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MASUZAKI Suguru
National Insitute for Fusion Science
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MORISAKI Tomohiro
National Insitute for Fusion Science
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OSAKABE Masaki
National Insitute for Fusion Science
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SAKAMOTO Ryuichi
National Insitute for Fusion Science
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SHOJI Mamoru
National Insitute for Fusion Science
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TAKEIRI Yasuhiko
National Insitute for Fusion Science
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KOBAYASHI Masahiro
National Institute for Fusion Science, 322-6 Oroshi, Toki, Gifu 509-5292, Japan
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TOKITANI Masayuki
National Institute for Fusion Science, 322-6 Oroshi-cho, Toki 509-5292, Japan
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MURASE Takanori
National Institute for Fusion Science, 322-6 Oroshi-cho, Toki 509-5292, Japan
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TAKEIRI Yasuhiko
National Institute for Fusion Science, Oroshi 322-6, Toki 509-5292, Japan
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KOBUCHI Takashi
National Institute for Fusion Science, Oroshi 322-6, Toki 509-5292, Japan
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YONEZU Hiroaki
National Institute for Fusion Science, Oroshi 322-6, Toki 509-5292, Japan
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TOKITANI Masayuki
National Institute for Fusion Science
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KOBAYASHI Masahiro
National Institute for Fusion Science
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SHOJI Mamoru
National Institute for Fusion Science, Oroshi 322-6, Toki 509-5292, Japan
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MURASE Takanori
National Institute for Fusion Science, Oroshi 322-6, Toki 509-5292, Japan
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SAKAMOTO Ryuichi
National Institute for Fusion Science, Oroshi 322-6, Toki 509-5292, Japan
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