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Observation of W IV–W VII line emissions in wavelength range of 495–1475 Å in the large helical device
http://hdl.handle.net/10655/00012593
http://hdl.handle.net/10655/000125935a08acf7-69c8-430a-bd4f-c52610a3c408
名前 / ファイル | ライセンス | アクション |
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Phys.Scr.91_pp025602 (3.5 MB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2021-07-21 | |||||
タイトル | ||||||
タイトル | Observation of W IV–W VII line emissions in wavelength range of 495–1475 Å in the large helical device | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | plasma spectroscopy | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | vasuum ultraviolet | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | magnetically confined fusion | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | impurity transport | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | tungsten ions in lower ionization stages | |||||
キーワード | ||||||
主題Scheme | Other | |||||
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 |
OISHI, Tetsutarou
× OISHI, Tetsutarou× MORITA, Shigeru× Huang, Xianli× Zhang, Hongming× GOTO, Motoshi× LHD, Experiment Group |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Vacuum ultraviolet spectra of line emissions from tungsten ions at lower ionization stages have been measured in the large helical device (LHD) using a high-resolution 3 m normal incidence spectrometer in the wavelength range of 495–1475 Å. Tungsten was introduced in the LHD plasma by injecting a coaxial tungsten impurity pellet. Many tungsten lines of W IV–W VII were successfully observed in low-temperature plasmas just after the tungsten pellet injection. It is found that some W VI lines are emitted with extremely high intensity and entirely isolated from other intrinsic impurity lines, in particular, W VI at 605.926 Å (5d–6p), 639.683 Å (5d–6p), 677.722 Å (5d–6p), 1168.151 Å (6s–6p) and 1467.959 Å (6s–6p). The result strongly suggests that those lines may be useful for the spectroscopic study in ITER and other magnetic fusion devices with tungsten materials as the plasma facing component. The ion temperature was also measured from Doppler broadening of W V and W VI lines. The result indicates that the measured ion temperature is clearly higher than the ionization energy of such ions. The reason is discussed with regarding to the pellet injection. | |||||
書誌情報 |
Physica Scripta 巻 91, 号 2, p. 025602, 発行日 2016-01-22 |
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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 | 0031-8949 | |||||
書誌レコードID | ||||||
識別子タイプ | NCID | |||||
関連識別子 | BA07552687 | |||||
DOI | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1088/0031-8949/91/2/025602 | |||||
権利 | ||||||
権利情報 | This is the Accepted Manuscript version of an article accepted for publication in Physica Scripta. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at https://doi.org/10.1088/0031-8949/91/2/025602 | |||||
権利 | ||||||
権利情報 | © 2016 The Royal Swedish Academy of Sciences | |||||
情報源 | ||||||
関連名称 | Tetsutarou Oishi et al 2016 Phys. Scr. 91 025602 | |||||
関連サイト | ||||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1088/0031-8949/91/2/025602 | |||||
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 | ||||||
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