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Linear collisionless dynamics of the GAM with kinetic electrons: Comparison simulations/theory
https://repo.qst.go.jp/records/78196
https://repo.qst.go.jp/records/781960d05a32b-80ea-43ac-a8f5-f54cbfdbb1a4
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2019-12-23 | |||||
| タイトル | ||||||
| タイトル | Linear collisionless dynamics of the GAM with kinetic electrons: Comparison simulations/theory | |||||
| 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 |
Grandigrard, V.
× Grandigrard, V.× Garbet, X.× Ehrlacher, Ch.× Biancalani, A.× Bottino, A.× Novikau, I.× Asahi, Y.× Caschera, E.× G., Dif-Pradalier× Donnel, P.× Ghendrih, Ph.× Gillot, C.× Latu, G.× Passeron, Ch.× Sarazin, Y.× Zarzoso, D.× Yuuichi, Asahi |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Barely trapped and passing electrons have been recently predicted to strongly enhance the damping rate of Geodesic Acoustic Modes (GAMs) in tokamak plasmas, while keeping their real frequency almost unchanged as compared to the case with adiabatic electrons. In this paper, dedicated gyrokinetic simulations are successfully compared with these analytical predictions. Specifically, the scaling of the GAM damping rate with respect to the ion to electron mass ratio, to the electron to ion temperature ratio, to the safety factor, and to the aspect ratio is recovered in most regions of the relevant parameter space. |
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| 書誌情報 |
Physics of Plasmas 巻 26, 号 12, p. 122304, 発行日 2019-12 |
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| 出版者 | ||||||
| 出版者 | AIP Publishing | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 1070-664X | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1063/1.5113679 | |||||
| 関連サイト | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | https://aip.scitation.org/doi/10.1063/1.5113679 | |||||
