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A mechanism of ion temperature peaking by impurity pellet injection in a heliotron plasma

http://hdl.handle.net/10655/00012891
http://hdl.handle.net/10655/00012891
53da072e-4ad7-4a1a-b4d1-6ffe9e9ec15c
名前 / ファイル ライセンス アクション
Plasma_Phys.Control.Fusion62_pp075008.pdf Plasma_Phys.Control.Fusion62_pp075008 (989.9 kB)
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Item type 学術雑誌論文 / Journal Article(1)
公開日 2022-01-18
タイトル
タイトル A mechanism of ion temperature peaking by impurity pellet injection in a heliotron plasma
言語
言語 eng
キーワード
主題Scheme Other
主題 ion temperature
キーワード
主題Scheme Other
主題 energy transport
キーワード
主題Scheme Other
主題 impurity
キーワード
主題Scheme Other
主題 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 TOKAR, Mikhail

× TOKAR, Mikhail

TOKAR, Mikhail
TOKAR, Mikhail Z.

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OSAKABE, Masaki

× OSAKABE, Masaki

OSAKABE, Masaki

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KOBAYASHI, Masahiro

× KOBAYASHI, Masahiro

KOBAYASHI, Masahiro

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Mukai, Kiyofumi

× Mukai, Kiyofumi

Mukai, Kiyofumi

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NAGAOKA, Kenichi

× NAGAOKA, Kenichi

NAGAOKA, Kenichi
NAGAOKA, Ken-ichi

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TAKAHASHI, Hiromi

× TAKAHASHI, Hiromi

TAKAHASHI, Hiromi

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TANAKA, Kenji

× TANAKA, Kenji

TANAKA, Kenji

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MORISAKI, Tomohiko

× MORISAKI, Tomohiko

MORISAKI, Tomohiko

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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 0000-0002-9536-9841
抄録
内容記述タイプ Abstract
内容記述 Experiments on the Large Helical Device with the injection of carbon pellets into discharges of low density have demonstrated a significant reduction of the ion heat conduction in the plasma core and an increase in the central ion temperature by a factor of up to 2. These results are interpreted in the framework of a transport model elaborated on the basis of those applied previously to explain the improvement in confinement by impurity seeding into the tokamak devices TEXTOR and JET. The calculations performed reproduce well the strong peaking of the ion temperature profile with increasing carbon density nZ and the consequent drop in the confinement as nZ exceeds a certain critical level. The importance of different elements in the model, such as braking of the main ion rotation by friction with impurity ones and the shape of the density profiles, are investigated. A qualitative assessment of the applicability under fusion reactor conditions, e.g. of much higher plasma density and heating power, is performed.
書誌情報 Plasma Physics and Controlled Fusion

巻 62, 号 7, p. 075008, 発行日 2020-06-01
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 07413335
書誌レコードID
収録物識別子タイプ NCID
収録物識別子 AA10643410
DOI
関連タイプ isVersionOf
識別子タイプ DOI
関連識別子 10.1088/1361-6587/ab8ca2
権利
権利情報 This is the Accepted Manuscript version of an article accepted for publication in Plasma Physics and Controlled 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/10.1088/1361-6587/ab8ca2.
権利
権利情報 © 2020 IOP Publishing Ltd
情報源
関連名称 M Z Tokar et al 2020 Plasma Phys. Control. Fusion 62 075008
関連サイト
識別子タイプ DOI
関連識別子 https://doi.org/10.1088/1361-6587/ab8ca2
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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