Item type |
学術雑誌論文 / Journal Article(1) |
公開日 |
2022-09-28 |
タイトル |
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タイトル |
Distributions of deposits and hydrogen on the upper and lower TDUs3 target elements of Wendelstein 7-X |
言語 |
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言語 |
eng |
キーワード |
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主題Scheme |
Other |
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主題 |
distribution pattern of deposits |
キーワード |
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主題Scheme |
Other |
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主題 |
hydrogen retention |
キーワード |
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主題Scheme |
Other |
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主題 |
up-down asymmetry |
キーワード |
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主題Scheme |
Other |
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主題 |
Wendelstein 7-X |
資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
journal article |
著者 |
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 |
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内容記述タイプ |
Other |
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内容記述 |
0000-0001-5089-3642 |
抄録 |
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内容記述タイプ |
Abstract |
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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 |
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出版者 |
IOP Publishing |
出版者 |
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出版者 |
International Atomic Energy Agency |
ISSN |
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収録物識別子タイプ |
ISSN |
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収録物識別子 |
0029-5515 |
書誌レコードID |
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収録物識別子タイプ |
NCID |
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収録物識別子 |
AA00759871 |
DOI |
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関連タイプ |
isVersionOf |
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識別子タイプ |
DOI |
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関連識別子 |
https://doi.org/10.1088/1741-4326/ac8c56 |
権利 |
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権利情報 |
This is the Accepted Manuscript version of an article accepted for publication in Nuclear Fusion. |
権利 |
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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 |
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権利情報 |
The Version of Record is available online at https://doi.org/10.1088/1741-4326/ac8c56. |
情報源 |
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関連名称 |
Mingzhong Zhao et al 2022 Nucl. Fusion 62 106023 |
関連サイト |
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識別子タイプ |
DOI |
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関連識別子 |
https://doi.org/10.1088/1741-4326/ac8c56 |
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関連名称 |
Publisher version |
著者版フラグ |
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出版タイプ |
AM |
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出版タイプResource |
http://purl.org/coar/version/c_ab4af688f83e57aa |
NAIS |
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13592 |