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Scaling study for positive magnetic shear ELMy H-mode plasmas in JT-60U
https://repo.qst.go.jp/records/78242
https://repo.qst.go.jp/records/7824214331368-0590-4c3c-bb27-8c2da79da4e9
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2019-12-26 | |||||
| タイトル | ||||||
| タイトル | Scaling study for positive magnetic shear ELMy H-mode plasmas in JT-60U | |||||
| 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 |
Ohtani, Yoshiaki
× Ohtani, Yoshiaki× Yoshida, Maiko× Honda, Mitsuru× Narita, Emi× Urano, Hajime× Oyama, Naoyuki× Takenaga, Hidenobu× Yoshiaki, Ohtani× Maiko, Yoshida× Mitsuru, Honda× Emi, Narita× Hajime, Urano× Naoyuki, Oyama× Hidenobu, Takenaga |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Scaling of the density peaking for positive magnetic shear ELMy H-mode plasmas in JT-60U has been developed. Although the density peaking generally depends on collisionality, a variation of the density peaking factor for the same collisionality exists, and the variation is different between plasmas with co-directed and ctr-directed toroidal rotation(co-V T plasmas and ctr-V T plasmas). The variation of the co-V T plasmas can be explained by particle source profile. As a result of scaling, the peaking factor of the co-V T plasmas depends on the particle source rate profile from neutral beams (NBs) as much as collisionality. The dataset of the ctr-V T plasmas has a larger variation of the peaking factor compared to that of the co-V T plasmas. The larger variation stems from that the peaking factor of the ctr-V T plasmas also depends on the normalized ion temperature gradient at the edge region. As a result of scaling, the normalized ion temperature gradient influences the peaking factor as much as or a little larger than collisionality. The parameter regime of the ctr-V T plasmas ranges from the trapped electron mode (TEM) to the ion temperature gradient mode (ITG mode). The plasmas with the positive correlation between the normalized density gradient and the normalized ion temperature gradient are dominated by the TEM. On the other hand, the plasmas with the negative correlation are dominated by the ITG mode. | |||||
| 書誌情報 |
Plasma Physics and Controlled Fusion 巻 61, 号 12, p. 125011, 発行日 2019-12 |
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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 | 0741-3335 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1088/1361-6587/ab4ee3 | |||||
| 関連サイト | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | https://iopscience.iop.org/article/10.1088/1361-6587/ab4ee3/meta | |||||
