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  1. Published Papers
  2. Published Papers

Collisionality dependence and ion species effects on heat transport in He and H plasma, and the role of ion scale turbulence in LHD

http://hdl.handle.net/10655/00012633
http://hdl.handle.net/10655/00012633
aea675a8-f781-4fc7-ad83-f0532e30fea2
名前 / ファイル ライセンス アクション
Nucl.Fusion57_pp116005.pdf Nucl.Fusion57_pp116005 (2.8 MB)
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Item type 学術雑誌論文 / Journal Article(1)
公開日 2021-08-12
タイトル
タイトル Collisionality dependence and ion species effects on heat transport in He and H plasma, and the role of ion scale turbulence in LHD
言語
言語 eng
キーワード
主題Scheme Other
主題 ITB
キーワード
主題Scheme Other
主題 heat transport
キーワード
主題Scheme Other
主題 helical
キーワード
主題Scheme Other
主題 stellarator
キーワード
主題Scheme Other
主題 ion species
キーワード
主題Scheme Other
主題 isotope effect
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 TANAKA, Kenji

× TANAKA, Kenji

TANAKA, Kenji

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NAGAOKA, Kenichi

× NAGAOKA, Kenichi

NAGAOKA, Kenichi
NAGAOKA, Ken-ichi

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MURAKAMI, Sadayoshi

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MURAKAMI, Sadayoshi

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TAKAHASHI, Hiromi

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TAKAHASHI, Hiromi

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OSAKABE, Masaki

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OSAKABE, Masaki

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YOKOYAMA, Masayuki

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YOKOYAMA, Masayuki

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SEKI, Ryosuke

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SEKI, Ryosuke

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MICHAEL, Clive A.

× MICHAEL, Clive A.

MICHAEL, Clive A.

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Yamaguchi, Hiroyuki

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Yamaguchi, Hiroyuki

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SUZUKI, Chihiro

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SUZUKI, Chihiro

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SHIMIZU, Akihiro

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SHIMIZU, Akihiro

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TOKUZAWA, Tokihiko

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TOKUZAWA, Tokihiko

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YOSHINUMA, Mikiro

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YOSHINUMA, Mikiro
YOSHINUMA, Mikirou

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AKIYAMA, Tsuyoshi

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AKIYAMA, Tsuyoshi

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IDA, Katsumi

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IDA, Katsumi

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YAMADA, Ichihiro

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YAMADA, Ichihiro

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YASUHARA, Ryo

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YASUHARA, Ryo

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FUNABA, Hisamichi

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FUNABA, Hisamichi

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Kobayashi, Tatsuya

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Kobayashi, Tatsuya

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YAMADA, Hiroshi

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YAMADA, Hiroshi

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Du, X.D.

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Du, X.D.

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VYACHESLAVOV, Leonid

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VYACHESLAVOV, Leonid

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MIKKELSEN, David R.

× MIKKELSEN, David R.

MIKKELSEN, David R.

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YUN, G.S.

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YUN, G.S.

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LHD Experimental Group,

× LHD Experimental Group,

LHD Experimental Group,
LHD Experimental Groups,
the LHD Experimental Groups,
the LHD Experimental Group,

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著者ID
内容記述タイプ Other
内容記述 https://orcid.org/0000-0002-1606-3204
抄録
内容記述タイプ Abstract
内容記述 Surveys of the ion and electron heat transports of neutral beam (NB) heating plasma were carried out by power balance analysis in He and H rich plasma at LHD. Collisionality was scanned by changing density and heating power. The characteristics of the transport vary depending on collisionality. In low collisionality, with low density and high heating power, an ion internal transport barrier (ITB) was formed. The ion heat conductivity (χi) is lower than electron heat conductivity (χe) in the core region at ρ  <  0.7. On the other hand, in high collisionality, with high density and low heating power, χi is higher than χe across the entire range of plasma. These different confinement regimes are associated with different fluctuation characteristics. In ion ITB, fluctuation has a peak at ρ  =  0.7, and in normal confinement, fluctuation has a peak at ρ  =  1.0. The two confinement modes change gradually depending on the collisionality. Scans of concentration ratio between He and H were also performed. The ion confinement improvements were investigated using gyro-Bohm normalization, taking account of the effective mass and charge. The concentration ratio affected the normalized χi only in the edge region (ρ ~ 1.0). This indicates ion species effects vary depending on collisionality. Turbulence was modulated by the fast ion loss instability. The modulation of turbulence is higher in H rich than in He rich plasma.
書誌情報 Nuclear Fusion

巻 57, 号 11, p. 116005, 発行日 2017-08-01
出版者
出版者 IOP Publishing
出版者
出版者 International Atomic Energy Agency
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/aa79c6
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/aa79c6.
情報源
関連名称 K. Tanaka et al 2017 Nucl. Fusion 57 116005
関連サイト
識別子タイプ DOI
関連識別子 https://doi.org/10.1088/1741-4326/aa79c6
関連名称 Publisher version
著者版フラグ
出版タイプ AM
出版タイプResource http://purl.org/coar/version/c_ab4af688f83e57aa
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Cite as

TANAKA, Kenji, NAGAOKA, Ken-ichi, MURAKAMI, Sadayoshi, TAKAHASHI, Hiromi, OSAKABE, Masaki, YOKOYAMA, Masayuki, SEKI, Ryosuke, MICHAEL, Clive A., Yamaguchi, Hiroyuki, SUZUKI, Chihiro, SHIMIZU, Akihiro, TOKUZAWA, Tokihiko, YOSHINUMA, Mikirou, AKIYAMA, Tsuyoshi, IDA, Katsumi, YAMADA, Ichihiro, YASUHARA, Ryo, FUNABA, Hisamichi, Kobayashi, Tatsuya, YAMADA, Hiroshi, Du, X.D., VYACHESLAVOV, Leonid, MIKKELSEN, David R., YUN, G.S., the LHD Experimental Group, , 2017, Collisionality dependence and ion species effects on heat transport in He and H plasma, and the role of ion scale turbulence in LHD: International Atomic Energy Agency, 116005– p.

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