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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/10655/000134823a9401ed-cd7a-46c9-93fe-4e7843a58cc5
名前 / ファイル | ライセンス | アクション |
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13592_Nucl.Fusion (3.7 MB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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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× MASUZAKI, Suguru× MOTOJIMA, Gen× TOKITANI, Masayuki× YAJIMA, Miyuki× GAO, Yu× JAKUBOWSKI, Marcin× SITJES, A. Puig× PISANO, F.× DHARD, C.P.× NAUJOKS, D.× 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 |
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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 |