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A comprehensive study on impurity behavior in LHD long pulse discharges
http://hdl.handle.net/10655/00013075
http://hdl.handle.net/10655/00013075718a79fd-d8e2-4071-b557-8802bf1536c1
名前 / ファイル | ライセンス | アクション |
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Nucl.Mater.Energy12_124 (1.7 MB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||||||
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公開日 | 2022-03-23 | |||||||||
タイトル | ||||||||||
タイトル | A comprehensive study on impurity behavior in LHD long pulse discharges | |||||||||
言語 | ||||||||||
言語 | eng | |||||||||
キーワード | ||||||||||
主題Scheme | Other | |||||||||
主題 | Long pulse discharge | |||||||||
キーワード | ||||||||||
主題Scheme | Other | |||||||||
主題 | Impurity accumulation window | |||||||||
キーワード | ||||||||||
主題Scheme | Other | |||||||||
主題 | Radial electric filed | |||||||||
キーワード | ||||||||||
主題Scheme | Other | |||||||||
主題 | Impurity screening | |||||||||
キーワード | ||||||||||
主題Scheme | Other | |||||||||
主題 | Turbulent impurity transport | |||||||||
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 |
NAKAMURA, Yukio
× NAKAMURA, Yukio× TAMURA, Naoki× KOBAYASHI, Masahiro× YOSHIMURA, Shinji× SUZUKI, Chihiro× YOSHINUMA, Mikiro× GOTO, Motoshi× MOTOJIMA, Gen× NAGAOKA, Kenichi× TANAKA, Kenji× SAKAMOTO, Ryuichi× PETERSON, Byron× IDA, Katsumi× OSAKABE, Masaki× MORISAKI, Tomohiko× LHD Experimental Group,
WEKO
66319
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抄録 | ||||||||||
内容記述タイプ | Abstract | |||||||||
内容記述 | Impurity behavior is studied in a variety of LHD (Large Helical Device) long pulse discharges, i.e. standard hydrogen plasmas, super dense core plasmas, helium plasmas with ICH (Ion Cyclotron Frequency Heating), multi-species plasmas mixed with H and He. Density scan experiments show a specific density range of impurity accumulation for only hydrogen discharges. Strong suppression of impurity accumulative behavior is observed in high temperature plasmas with high power heating. The main contributions to impurity transport are extracted by a comprehensive study on impurity behavior, i.e. investigating the critical conditions for impurity accumulation and the parameter dependences. It is found that the impurity behavior is determined by three dominant contributions, i.e. neoclassical transport mainly depending on radial electric field, turbulent transport increasing with heating power and impurity screening at high edge collisionality in the ergodic layer. The mapping of impurity behavior on n-T (electron density and temperature) space at the plasma edge shows a clear indication of the domain without impurity accumulation and provides operation scenarios to build up fusion-relevant plasmas. | |||||||||
書誌情報 |
Nuclear Materials and Energy 巻 12, p. 124-132, 発行日 2016-11 |
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出版者 | ||||||||||
出版者 | ELESEVIER | |||||||||
ISSN | ||||||||||
収録物識別子タイプ | ISSN | |||||||||
収録物識別子 | 2352-1791 | |||||||||
DOI | ||||||||||
関連タイプ | isIdenticalTo | |||||||||
識別子タイプ | DOI | |||||||||
関連識別子 | 10.1016/j.nme.2016.11.005 | |||||||||
権利 | ||||||||||
権利情報 | © 2016 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license. (http://creativecommons.org/licenses/by-nc-nd/4.0/) | |||||||||
情報源 | ||||||||||
関連名称 | Y. Nakamura, N. Tamura, M. Kobayashi, S. Yoshimura, C. Suzuki, M. Yoshinuma, M. Goto, G. Motojima, K. Nagaoka, K. Tanaka, R. Sakamoto, B.J. Peterson, K. Ida, M. Osakabe, T. Morisaki, A comprehensive study on impurity behavior in LHD long pulse discharges, Nuclear Materials and Energy, Volume 12, 2017, Pages 124-132. | |||||||||
関連サイト | ||||||||||
識別子タイプ | DOI | |||||||||
関連識別子 | https://doi.org/10.1016/j.nme.2016.11.005 | |||||||||
関連名称 | Publisher version | |||||||||
著者版フラグ | ||||||||||
出版タイプ | VoR | |||||||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 |