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  1. Published Papers
  2. Published Papers

Spatial Profiles of NeVI-NeX Emission in ECR-Heated Discharges of the Large Helical Device with Divertor Detachment Induced by RMP Application and Ne Impurity Seeding

http://hdl.handle.net/10655/00013103
http://hdl.handle.net/10655/00013103
39b00d0a-b828-4321-af64-55befe4d19d1
名前 / ファイル ライセンス アクション
pfr2022_17-2402022.pdf pfr2022_17-2402022 (9.0 MB)
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Item type 学術雑誌論文 / Journal Article(1)
公開日 2022-04-27
タイトル
タイトル Spatial Profiles of NeVI-NeX Emission in ECR-Heated Discharges of the Large Helical Device with Divertor Detachment Induced by RMP Application and Ne Impurity Seeding
言語
言語 eng
キーワード
主題Scheme Other
主題 plasma spectroscopy
キーワード
主題Scheme Other
主題 extreme ultraviolet
キーワード
主題Scheme Other
主題 vacuum ultraviolet
キーワード
主題Scheme Other
主題 magnetically confined fusion
キーワード
主題Scheme Other
主題 impurity seeding
キーワード
主題Scheme Other
主題 resonant magnetic perturbation
キーワード
主題Scheme Other
主題 divertor detachment
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 OISHI, Tetsutarou

× OISHI, Tetsutarou

OISHI, Tetsutarou
OISHI, Tetsutaro

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KOBAYASHI, Masahiro

× KOBAYASHI, Masahiro

KOBAYASHI, Masahiro

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TAKAHASHI, Hiromi

× TAKAHASHI, Hiromi

TAKAHASHI, Hiromi

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HAYASHI, Yuki

× HAYASHI, Yuki

HAYASHI, Yuki

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MUKAI, Kiyofumi

× MUKAI, Kiyofumi

MUKAI, Kiyofumi

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MORITA, Shigeru

× MORITA, Shigeru

MORITA, Shigeru

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GOTO, Motoshi

× GOTO, Motoshi

GOTO, Motoshi

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KAWAMOTO, Yasuko

× KAWAMOTO, Yasuko

KAWAMOTO, Yasuko

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KAWATE, Tomoko

× KAWATE, Tomoko

KAWATE, Tomoko

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MASUZAKI, Suguru

× MASUZAKI, Suguru

MASUZAKI, Suguru

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SUZUKI, Chihiro

× SUZUKI, Chihiro

SUZUKI, Chihiro

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KAWAMURA, Gakushi

× KAWAMURA, Gakushi

KAWAMURA, Gakushi

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MOTOJIMA, Gen

× MOTOJIMA, Gen

MOTOJIMA, Gen

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SEKI, Ryosuke

× SEKI, Ryosuke

SEKI, Ryosuke

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著者ID
内容記述タイプ Other
内容記述 0000-0002-1171-8603
抄録
内容記述タイプ Abstract
内容記述 In the Large Helical Device, the divertor detachment has been attempted by application of resonant magnetic perturbation (RMP) field and Ne gas puffing in electron cyclotron resonance- heated discharges for compatibility of high central electron temperature and low divertor heat load. Two kinds of divertor detachment phases were observed. The first one appeared transiently just after the Ne gas puffing (1st detachment), and the second one appeared steadily in the latter half of the discharge (2nd detachment). Space-resolved extreme ultraviolet spectroscopy revealed that NeVI-NeVIII emissions increased slightly outside the last closed flux surface (LCFS), while NeIX and NeX emissions increased inside the LCFS in the 1st detachment phase. Although in the 1st detachment the divertor heat load was significantly reduced, the central electron temperature also decreased because the Ne ions were penetrated inside the LCFS as a radiation source. In the 2nd detachment phase, NeVI-NeVIII emissions increased outside the LCFS while NeIX and NeX emissions kept low intensity inside the LCFS. In this phase, low divertor heat load and high central electron temperature were obtained simultaneously because the Ne ions were localized outside the LCFS as a radiation source. The profile measurements of Ne emission show that the edge island structure created by the RMP application impacts on the impurity emission distribution, where the peak of the emission shifts radially stepwise as the detachment proceeds.
書誌情報 Plasma and Fusion Research

巻 17, 号 Special Issue 1, p. 2402022, 発行日 2022-04-22
書誌的事項
the 30th International Toki Conference on Plasma and Fusion Research (ITC30)
出版者
出版者 The Japan Society of Plasma Science and Nuclear Fusion Research
ISSN
収録物識別子タイプ ISSN
収録物識別子 1880-6821
書誌レコードID
収録物識別子タイプ NCID
収録物識別子 AA12346675
DOI
関連タイプ isIdenticalTo
識別子タイプ DOI
関連識別子 10.1585/pfr.17.2402022
権利
権利情報 (c) 2022 The Japan Society of Plasma Science and Nuclear Fusion Research
関連サイト
識別子タイプ DOI
関連識別子 https://doi.org/10.1585/pfr.17.2402022
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
NAIS
13201
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Cite as

OISHI, Tetsutaro, KOBAYASHI, Masahiro, TAKAHASHI, Hiromi, HAYASHI, Yuki, MUKAI, Kiyofumi, MORITA, Shigeru, GOTO, Motoshi, KAWAMOTO, Yasuko, KAWATE, Tomoko, MASUZAKI, Suguru, SUZUKI, Chihiro, KAWAMURA, Gakushi, MOTOJIMA, Gen, SEKI, Ryosuke, 2022, Spatial Profiles of NeVI-NeX Emission in ECR-Heated Discharges of the Large Helical Device with Divertor Detachment Induced by RMP Application and Ne Impurity Seeding: The Japan Society of Plasma Science and Nuclear Fusion Research , 2402022– p.

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