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The isotope effect on impurities and bulk ion particle transport in the Large Helical Device
http://hdl.handle.net/10655/00012548
http://hdl.handle.net/10655/00012548e3d67d4f-d8e1-4e5d-a7be-8d8785c9439d
名前 / ファイル | ライセンス | アクション |
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Nucl.Fusion59(5)_pp056029 (469.7 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2019-04-15 | |||||
タイトル | ||||||
タイトル | The isotope effect on impurities and bulk ion particle transport in the Large Helical Device | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | isotope effect | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | impurity transport | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | ion particle transport | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | large helical device | |||||
キーワード | ||||||
主題Scheme | Other | |||||
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 |
IDA, Katsumi
× IDA, Katsumi× SAKAMOTO, Ryuichi× YAMADA, Hiroshi× Yamasaki, kotaro× Kobayashi, Tatsuya× Fujiwara, Yutaka× SUZUKI, Chihiro× FUJII, Keisuke× Chen, Jun× MURAKAMI, Izumi× EMOTO, Masahiko× Mackenbach, R.× Yamada, H.× MOTOJIMA, Gen× MASUZAKI, Suguru× Mukai, Kiyofumi× NAGAOKA, Kenichi× TAKAHASHI, Hiromi× OISHI, Tetsutaro× GOTO, Motoshi× MORITA, Shigeru× TAMURA, Naoki× NAKANO, Haruhisa× KAMIO, Shuji× SEKI, Ryosuke× YOKOYAMA, Masayuki× MURAKAMI, Sadayoshi× NUNAMI, Masanori× Nakata, Motoki× MORISAKI, Tomohiko× OSAKABE, Masaki× LHD, Experiment Group |
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著者ID | ||||||
内容記述タイプ | Other | |||||
内容記述 | 0000-0002-0585-4561 | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | The isotope effect on impurities and bulk ion particle transport is investigated by using the deuterium, hydrogen, and isotope mixture plasma in the Large Helical Device (LHD). A clear isotope effect is observed in the impurity transport but not the bulk ion transport. The isotope effects on impurity transport and ion heat transport are observed as a primary and a secondary effect, respectively, in the plasma with an internal transport barrier (ITB). In the LHD, an ion ITB is always transient because the impurity hole triggered by the increase of ion temperature gradient causes the enhancement of ion heat transport and gradually terminates the ion ITB. The formation of an impurity hole becomes slower in the deuterium (D) plasma than the hydrogen (H) plasma. This primary isotope effect on impurity transport contributes the longer sustainment of the ion ITB state because the low ion thermal diffusivity can be sustained as long as the normalized carbon impurity gradient R/Ln,c, where , is above the critical value (~−5). Therefore, the longer sustainment of the ITB state in the deuterium plasma is considered to be a secondary isotope effect due to the mitigation of the impurity hole. The radial profile of H and D ion density is measured using bulk charge exchange spectroscopy inside the isotope mixture plasma. The decay time of H ion density after the H-pellet injection and the decay time of D ion density after D-pellet injection are almost identical, which demonstrates that there is no significant isotope effect on ion particle transport. | |||||
書誌情報 |
Nuclear Fusion 巻 59, 号 5, p. 056029, 発行日 2019-04-15 |
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出版者 | ||||||
出版者 | IOP Publishing | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 17414326 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA12472385 | |||||
DOI | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1088/1741-4326/ab0e41 | |||||
権利 | ||||||
権利情報 | This is the Accepted Manuscript version of an article accepted for publication in Nuclear Fusion. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at https://doi.org/10.1088/1741-4326/ab0e41. | |||||
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関連名称 | K. Ida et al 2019 Nucl. Fusion 59 056029 | |||||
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識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1088/1741-4326/ab0e41 | |||||
関連名称 | Publisher version | |||||
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出版タイプ | AM | |||||
出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||
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