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Distributions of deposits and hydrogen on the upper and lower TDUs3 target elements of Wendelstein 7-X

http://hdl.handle.net/10655/00013482
http://hdl.handle.net/10655/00013482
3a9401ed-cd7a-46c9-93fe-4e7843a58cc5
名前 / ファイル ライセンス アクション
13592_Nucl.Fusion.pdf 13592_Nucl.Fusion (3.7 MB)
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Item type 学術雑誌論文 / Journal Article(1)
公開日 2022-09-28
タイトル
タイトル Distributions of deposits and hydrogen on the upper and lower TDUs3 target elements of Wendelstein 7-X
言語
言語 eng
キーワード
主題Scheme Other
主題 distribution pattern of deposits
キーワード
主題Scheme Other
主題 hydrogen retention
キーワード
主題Scheme Other
主題 up-down asymmetry
キーワード
主題Scheme Other
主題 Wendelstein 7-X
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 ZHAO, Mingzhong

× ZHAO, Mingzhong

ZHAO, Mingzhong

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MASUZAKI, Suguru

× MASUZAKI, Suguru

MASUZAKI, Suguru

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MOTOJIMA, Gen

× MOTOJIMA, Gen

MOTOJIMA, Gen

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TOKITANI, Masayuki

× TOKITANI, Masayuki

TOKITANI, Masayuki

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YAJIMA, Miyuki

× YAJIMA, Miyuki

YAJIMA, Miyuki

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GAO, Yu

× GAO, Yu

GAO, Yu

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JAKUBOWSKI, Marcin

× JAKUBOWSKI, Marcin

JAKUBOWSKI, Marcin

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SITJES, A. Puig

× SITJES, A. Puig

SITJES, A. Puig

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PISANO, F.

× PISANO, F.

PISANO, F.

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DHARD, C.P.

× DHARD, C.P.

DHARD, C.P.

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NAUJOKS, Dirk

× NAUJOKS, Dirk

NAUJOKS, Dirk

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ROMAZANOV, Juri

× ROMAZANOV, Juri

ROMAZANOV, Juri

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著者ID
内容記述タイプ Other
内容記述 0000-0001-5089-3642
抄録
内容記述タイプ Abstract
内容記述 Distributions of deposits and hydrogen (H) on the graphite divertor target elements TM4h4 and TM3v5 in the test divertor units 3 (TDUs3) of Wendelstein 7-X (W7-X) are studied. The TM4h4 and TM3v5 are located at the magnetically symmetric positions in the upper and lower divertor. The microstructure of the deposition layer is characterized by a transmission electron microscope (TEM) combined with a focused ion beam (FIB). Metallic deposits such as iron (Fe), molybdenum (Mo), chromium (Cr) are detected in the deposition layer by energy-dispersive x-ray spectroscopy (EDS). The depth-resolved distribution patterns of boron (B) and metallic deposits on upper and lower horizontal (h) divertor target elements TDUs3-TM4h4 as well as upper and lower vertical (v) divertor target elements TDUs3-TM3v5 are clarified by glow discharge optical emission spectrometry (GDOES). Results for both TDUs3-TM4h4 and TDUs3-TM3v5 show that the B deposition regions exhibit higher H retention due to the co-deposition with deposits. On the other hand, up-down asymmetries in B deposition caused by particle drift exist on both TDUs3-TM4h4 and TDUs3-TM3v5. The B deposition amount on upper TDUs3-TM4h4 is 40% smaller than that on lower TDUs3-TM4h4. While for the vertical target elements, the B deposition amount on upper TDUs3-TM3v5 is 35% larger than that on lower TDUs3-TM3v5. Meanwhile, a shift of around 3 cm in B deposition peaks is observed on upper and lower TDUs3-TM4h4 and TDUs3-TM3v5. Results of numerical simulation of carbon deposition/erosion profiles on the target elements using ERO2.0 code and power flux measured by infrared cameras are shown and compared with the above mentioned B profiles.
書誌情報 Nuclear Fusion

巻 62, 号 10, p. 106023, 発行日 2022-09-13
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 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 isVersionOf
識別子タイプ DOI
関連識別子 https://doi.org/10.1088/1741-4326/ac8c56
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/ac8c56.
情報源
関連名称 Mingzhong Zhao et al 2022 Nucl. Fusion 62 106023
関連サイト
識別子タイプ DOI
関連識別子 https://doi.org/10.1088/1741-4326/ac8c56
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
NAIS
13592
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Cite as

ZHAO, Mingzhong, MASUZAKI, Suguru, MOTOJIMA, Gen, TOKITANI, Masayuki, YAJIMA, Miyuki, GAO, Yu, JAKUBOWSKI, Marcin, SITJES, A. Puig, PISANO, F., DHARD, C.P., NAUJOKS, Dirk, ROMAZANOV, Juri, 2022, Distributions of deposits and hydrogen on the upper and lower TDUs3 target elements of Wendelstein 7-X: International Atomic Energy Agency , 106023– p.

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