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| ファイル | 記述 | サイズ | フォーマット | |
|---|---|---|---|---|
| j.nme.2021.100905.pdf | 6.22 MB | Adobe PDF | 見る/開く |
| タイトル: | Toroidal flow measurements of impurity ions in QUEST ECH plasmas using multiple viewing chords emission spectroscopy |
| 著者: | Yoneda, N. Shikama, T. Hanada, K. Mori, S. Onchi, T. Kuroda, K. Hasuo, M. Ejiri, A. Matsuzaki, K. Osawa, Y. Peng, Y. Kawamata, Y. Sakamoto, S. Idei, H. Ido, T. Nakamura, K. Nagashima, Y. Ikezoe, R. Hasegawa, M. Higashijima, A. Nagata, T. Shimabukuro, S. |
| 著者名の別形: | 米田, 奈生 四竃, 泰一 森, 暁 蓮尾, 昌裕 |
| キーワード: | Spherical tokamak ECH Magnetic configuration Toroidal flow Emission spectroscopy Inversion |
| 発行日: | Mar-2021 |
| 出版者: | Elsevier BV |
| 誌名: | Nuclear Materials and Energy |
| 巻: | 26 |
| 論文番号: | 100905 |
| 抄録: | A spectroscopic system with multiple viewing chords was developed for QUEST (Q-shu University Experiment with Steady-State Spherical Tokamak) to measure the spatial distribution of ion toroidal velocities in discharges sustained by electron cyclotron resonance heating (ECH). Twenty-four viewing chords were aligned in the midplane and C III emission line spectra were measured for three types of ECH discharge under different magnetic field configurations. By applying an inversion method to the measured spectra, we evaluated the radial distributions of C2+ ion emissivity, temperature, and toroidal velocity. The error in the evaluated velocity was estimated to be less than 5 km/s. It was found that the velocity depends on the magnetic field configuration. |
| 著作権等: | © 2021 The Author(s). Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license. |
| URI: | http://hdl.handle.net/2433/277795 |
| DOI(出版社版): | 10.1016/j.nme.2021.100905 |
| 出現コレクション: | 学術雑誌掲載論文等 |
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