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Comparison of Hydrogen Isotope Retention in Divertor Tiles of JET with the ITER-Like Wall Following Campaigns in 2011–2012 and 2015–2016
https://repo.qst.go.jp/records/80287
https://repo.qst.go.jp/records/802873e791650-03a0-488c-94d1-3e0f6ec58f97
Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2020-08-04 | |||||
タイトル | ||||||
タイトル | Comparison of Hydrogen Isotope Retention in Divertor Tiles of JET with the ITER-Like Wall Following Campaigns in 2011–2012 and 2015–2016 | |||||
言語 | ||||||
言語 | eng | |||||
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 | |||||
アクセス権 | ||||||
アクセス権 | metadata only access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
著者 |
Oya, Yasuhisa
× Oya, Yasuhisa× Masuzaki , Suguru× Tokitani, Masayuki× Nakata, Moeko× Sun, Fei× Oyaidzu, Makoto× Isobe, Kanetsuku× Asakura, Nobuyuki× Otsuka, Teppei× Widdowson, Anna× Likonen, Jari× Rubel, Marek× Contributors, JET× Masuzaki , Suguru× Asakura, Nobuyuki× Otsuka, Teppei |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Hydrogen isotope retention and chemical state for the tiles exposed to plasma in the JET–ITER-like wall (ILW) during two campaigns in 2011–2012 (first campaign, ILW-1) and 2015–2016 (third campaign, ILW-3) were studied and compared by means of X-ray photoelectron spectroscopy and thermal desorption spectroscopy. In both campaigns the upper part of the inner divertor tiles was the deposition-dominated area, while erosion was observed on the outer divertor tiles. Therefore, higher deuterium retention was found on the inner divertor tiles. The major D desorption peak for the inner divertor tiles from ILW-3 was located at the temperature range of 470°C to 520°C, which was higher than measured after ILW-1: 370°C to 430°C. The XPS analyses showed the formation of a BeO layer on the ILW-3 inner divertor tiles, while after ILW-1 the layers also contained a significant amount of carbon. Deuterium retention was reduced toward the outer divertor tiles. The differences could be related to the difference in the power level in the two campaigns. | |||||
書誌情報 |
Fusion Science and Technology 巻 76, 号 4, p. 439-445, 発行日 2020-08 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 1536-1055 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1080/15361055.2020.1716455 | |||||
関連サイト | ||||||
識別子タイプ | URI | |||||
関連識別子 | https://www.tandfonline.com/doi/full/10.1080/15361055.2020.1716455 |