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Density Regimes of Complete Detachment and Serpens Mode in LHD
http://hdl.handle.net/10655/5370
http://hdl.handle.net/10655/5370b0832332-cfa0-4b6f-961b-1f545fbaf1a4
名前 / ファイル | ライセンス | アクション |
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1130.pdf (1.7 MB)
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Item type | 学術雑誌論文 / Journal Article_02(1) | |||||
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公開日 | 2011-01-31 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Density Regimes of Complete Detachment and Serpens Mode in LHD | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | high-density plasma | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | detachment | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Serpens mode | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | serpent | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | volume recombination | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | density limit | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
著者 |
MIYAZAWA, Junichi
× MIYAZAWA, Junichi× MASUZAKI, Suguru× GOTO, Motoshi× TAMURA, Naoki× SAKAMOTO, Ryuichi× PETERSON, Byron J.× YAMADA, Ichihiro× NARIHARA, Kazumichi× TANAKA, Kenji× TOKUZAWA, Tokihiko× SHOJI, Mamoru× FUNABA, Hisamichi× SAKAKIBARA, Satoru× KOBAYASHI, Masahiro× OSAKABE, Masaki× MORITA, Shigeru× ARIMOTO, Hajime× KONDOH, Katsumi× MURAKAMI, Sadayoshi× NISHIURA, Masaki× ASHIKAWA, Naoko× MORISAKI, Tomohiro× NISHIMURA, Kiyohiko× YAMADA, Hiroshi× OHYABU, Nobuyoshi× KOMORI, Akio× MOTOJIMA, Osamu× the, LHD Experimental Group |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | In the Large Helical Device (LHD), the hot plasma column shrinks at the high-density regime and complete detachment takes place. Hydrogen volume recombination is observed at complete detachment. This phase is self-sustained under specific experimental conditions and called the Serpens mode (self-regulated plasma edge ‘neath the last-closed-flux-surface). The Serpens mode is achieved after either rapid or slow density ramp up, and either by hydrogen or helium gas puffing. The threshold conditions for complete detachment and the Serpens mode are experimentally documented in the parameter space of heating power and density. The threshold density for the Serpens mode transition increases with ? 0.4 power of the heating power. The total radiation is shown to be not adequate to describe the threshold conditions, since it mainly includes the information of very edge region outside the hot plasma column. The operational density limit in LHD, which is sustainable in steady state, has been extended to 1.7 times as high as the Sudo density limit, by applying pellet injection to the Serpens plasmas. |
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書誌情報 |
en : Plasma and Fusion Research 巻 Vol.1, p. 026-1~026-8, 発行日 2006-01-01 |
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出版者 | ||||||
出版者 | プラズマ・核融合学会 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1585/pfr.1.026 | |||||
権利 | ||||||
権利情報 | ? 2006 The Japan Society of Plasma Science and Nuclear Fusion Research |