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Real-time wall conditioning and recycling modification utilizing boron and boron nitride powder injections into the Large Helical Device

http://hdl.handle.net/10655/00013564
http://hdl.handle.net/10655/00013564
94a31cc5-7ebd-44eb-8dcf-32bbb987ce77
名前 / ファイル ライセンス アクション
Nucl._Fusion_62_086021.pdf Nucl._Fusion_62_086021 (2.8 MB)
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Item type 学術雑誌論文 / Journal Article(1)
公開日 2023-03-03
タイトル
タイトル Real-time wall conditioning and recycling modification utilizing boron and boron nitride powder injections into the Large Helical Device
言語 en
言語
言語 eng
キーワード
主題Scheme Other
主題 boronization
キーワード
主題Scheme Other
主題 recycling control
キーワード
主題Scheme Other
主題 wall conditioning
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 LUNSFORD, Robert

× LUNSFORD, Robert

LUNSFORD, Robert

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MASUZAKI, Suguru

× MASUZAKI, Suguru

MASUZAKI, Suguru

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NESPOLI, Federico

× NESPOLI, Federico

NESPOLI, Federico

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ASHIKAWA, Naoko

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ASHIKAWA, Naoko

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GILSON, Eric

× GILSON, Eric

GILSON, Eric

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GATES, David A.

× GATES, David A.

GATES, David A.

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IDA, Katsumi

× IDA, Katsumi

IDA, Katsumi

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KAWAMURA, Gakushi

× KAWAMURA, Gakushi

KAWAMURA, Gakushi

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MORISAKI, Tomohiro

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MORISAKI, Tomohiro

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NAGY, Alex

× NAGY, Alex

NAGY, Alex

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OISHI, Tetsutarou

× OISHI, Tetsutarou

OISHI, Tetsutarou
OISHI, Tetsutaro

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SHOJI, Mamoru

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SHOJI, Mamoru

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SUZUKI, Chihiro

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SUZUKI, Chihiro

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YOSHINUMA, Mikirou

× YOSHINUMA, Mikirou

YOSHINUMA, Mikirou

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著者ID
内容記述タイプ Other
内容記述 0000-0003-3588-6801
抄録
内容記述タイプ Abstract
内容記述 Controlled particulate injections from the PPPL impurity powder dropper (IPD) into the Large Helical Device have demonstrated positive effects on the wall conditions on both an intra and inter-shot basis. Injections over a range of densities, input powers, pulse lengths, heating schemes, injection quantities and main ion species show conclusive evidence of improvement to plasma wall conditions. Successful injections are confirmed by both spectroscopic measurements as well as real-time visible camera signals. In 7 s long plasmas the responses include a reduction in wall recycling as well as a reduction in native impurity content as observed over the course of several discharges. For plasmas longer than 40 s, improvements to the recycling rate and increased impurity control are observed in real time as a consequence of the extended particulate injections. These experiments demonstrate the extended applicability of this solid particulate conditioning technique to the control and maintenance of the plasma wall conditions. In addition they are an important initial step in the development of the real-time boronization technique as a supplement to standard conditioning scenarios.
書誌情報 Nuclear Fusion

巻 62, 号 8, p. 086021, 発行日 2022-06-16
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 0029-5515
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 isIdenticalTo
識別子タイプ DOI
関連識別子 10.1088/1741-4326/ac6ff5
権利
権利情報 This is the Accepted Manuscript version of an article accepted for publication in Nuclear Fusion.
権利
権利情報 IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it.
権利
権利情報 The Version of Record is available online at https://doi.org/10.1088/1741-4326/ac6ff5.
情報源
関連名称 R. Lunsford et al 2022 Nucl. Fusion 62 086021
関連サイト
識別子タイプ URI
関連識別子 http://doi.org/10.1088/1741-4326/ac6ff5
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
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