| Item type |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2021-10-13 |
| タイトル |
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タイトル |
Line identification of boron and nitrogen emissions in extreme- and vacuum-ultraviolet wavelength ranges in the impurity powder dropping experiments of the Large Helical Device and its application to spectroscopic diagnostics |
| 言語 |
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言語 |
eng |
| キーワード |
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|
言語 |
en |
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主題Scheme |
Other |
|
主題 |
plasma spectroscop |
| キーワード |
|
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言語 |
en |
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主題Scheme |
Other |
|
主題 |
extreme ultraviolet |
| キーワード |
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言語 |
en |
|
主題Scheme |
Other |
|
主題 |
vacuum ultraviolet |
| キーワード |
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|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
magnetically confined fusion |
| キーワード |
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|
言語 |
en |
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主題Scheme |
Other |
|
主題 |
impurity seeding |
| キーワード |
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|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
wall conditioning |
| キーワード |
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|
言語 |
en |
|
主題Scheme |
Other |
| 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 |
OISHI, Tetsutaro
ASHIKAWA, Naoko
NESPOLI, Federico
MASUZAKI, Suguru
SHOJI, Mamoru
GILSON, Eric P
LUNSFORD, Robert
MORITA, Shigeru
GOTO, Motoshi
KAWAMOTO, Yasuko
SUZUKI, Chihiro
SUN, Zhen
NAGY, Alex
GATES, David A
MORISAKI, Tomohiro
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| 抄録 |
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内容記述タイプ |
Abstract |
|
内容記述 |
An impurity powder dropper was installed in the 21st campaign of the Large Helical Device experiment (Oct. 2019–Feb. 2020) under a collaboration between the National Institute for Fusion Science and the Princeton Plasma Physics Laboratory for the purposes of real-time wall conditioning and edge plasma control. In order to assess the effective injection of the impurity powders, spectroscopic diagnostics were applied to observe line emission from the injected impurity. Thus, extreme-ultraviolet (EUV) and vacuum-ultraviolet (VUV) emission spectra were analyzed to summarize observable impurity lines with B and BN powder injection. Emission lines released from B and N ions were identified in the EUV wavelength range of 5–300 Å measured using two grazing incidence flat-field EUV spectrometers and in the VUV wavelength range of 300–2400 Å measured using three normal incidence 20 cm VUV spectrometers. BI–BV and NIII–NVII emission lines were identified in the discharges with the B and BN powder injection, respectively. Useful B and N emission lines which have large intensities and are isolated from other lines were successfully identified as follows: BI (1825.89, 1826.40) Å (blended), BII 1362.46 Å, BIII (677.00, 677.14, 677.16) Å (blended), BIV 60.31 Å, BV 48.59 Å, NIII (989.79, 991.51, 991.58) Å (blended), NIV 765.15 Å, NV (209.27, 209.31) Å (blended), NVI 1896.80 Å, and NVII 24.78 Å. Applications of the line identifications to the advanced spectroscopic diagnostics were demonstrated, such as the vertical profile measurements for the BV and NVII lines using a space-resolved EUV spectrometer and the ion temperature measurement for the BII line using a normal incidence 3 m VUV spectrometer. |
| 書誌情報 |
Plasma Science and Technology
巻 23,
号 8,
p. 084002,
発行日 2021-06-30
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| 出版者 |
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出版者 |
IOP Publishing |
| 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 |
1009-0630 |
| 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 |
AA11584951 |
| 権利 |
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権利情報 |
This is the Accepted Manuscript version of an article accepted for publication in [NAME OF JOURNAL]. 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/10.1088/2058-6272/abfd88. |
| 情報源 |
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関連名称 |
Citation Tetsutarou OISHI et al 2021 Plasma Sci. Technol. 23 084002 |
| 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/10.1088/2058-6272/abfd88 |
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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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Plasma.Sci.Technol.23_pp084002 (2.6 MB)
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