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Linear analysis of cross-field dynamics with feedback instability on detached divertor plasmas

http://hdl.handle.net/10655/00012669
http://hdl.handle.net/10655/00012669
3a49a40d-ca7c-48d0-91b1-cd1a7d8c3a81
名前 / ファイル ライセンス アクション
Nucl.Fusion61_pp126005.pdf Nucl.Fusion61_pp126005 (4.3 MB)
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Item type 学術雑誌論文 / Journal Article(1)
公開日 2021-11-04
タイトル
タイトル Linear analysis of cross-field dynamics with feedback instability on detached divertor plasmas
言語
言語 eng
キーワード
主題Scheme Other
主題 detached divertor plasma
キーワード
主題Scheme Other
主題 cross-field transport
キーワード
主題Scheme Other
主題 feedback instability
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 HASEGAWA, Hiroki

× HASEGAWA, Hiroki

HASEGAWA, Hiroki

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TANAKA, Hirohiko

× TANAKA, Hirohiko

TANAKA, Hirohiko

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ISHIGURO, Seiji

× ISHIGURO, Seiji

ISHIGURO, Seiji

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著者ID
内容記述タイプ Other
内容記述 0000-0001-7641-6908
抄録
内容記述タイプ Abstract
内容記述 A theoretical model of feedback instability is proposed to explain the mechanism of correlation between the detachment and the cross-field plasma transport. It is shown that the feedback instability on the detached divertor plasma can be induced in a certain condition in which the volume recombination frequency is larger than the ion cyclotron frequency in the recombination region. Further, the density gradient and the electric field in the direction perpendicular to the magnetic flux surface are not zero in the condition. The feedback instability can provide the cross-field plasma transport in the boundary layer of magnetic fusion torus devices. Furthermore, the properties of the radial transport observed in the NAGDIS-II linear device experiment are compared with the estimation by the feedback instability model. The dependence of the feedback instability mode on the total collision frequency and the recombination coefficient and the density gradient has been also investigated. Although the dependency on the total collision frequency and the recombination coefficient for the typical fusion torus device case is opposite to that for the NAGDIS-II case, the represented dependencies show the reasonable tendency in each case.
書誌情報 Nuclear Fusion

巻 61, 号 12, p. 126006, 発行日 2021-10-20
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 00295515
書誌レコードID
収録物識別子タイプ NCID
収録物識別子 AA00759871
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/ac2a88
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 doi.org/10.1088/1741-4326/ac2a88
情報源
関連名称 Citation Hiroki Hasegawa et al 2021 Nucl. Fusion 61 126005
関連サイト
識別子タイプ DOI
関連識別子 https://doi.org/10.1088/1741-4326/ac2a88
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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