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Radio frequency wave interactions with a plasma sheath: The role of wave and plasma sheath impedances
http://hdl.handle.net/10228/00007255
http://hdl.handle.net/10228/000072556d0ee0aa-a253-454a-8047-b00070cc368a
名前 / ファイル | ライセンス | アクション |
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10342452.pdf (1.2 MB)
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Item type | 学術雑誌論文 = Journal Article(1) | |||||||||||
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公開日 | 2019-06-27 | |||||||||||
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 | |||||||||||
タイトル | ||||||||||||
言語 | en | |||||||||||
タイトル | Radio frequency wave interactions with a plasma sheath: The role of wave and plasma sheath impedances | |||||||||||
言語 | ||||||||||||
言語 | eng | |||||||||||
著者 |
Myra, J. R.
× Myra, J. R.× 河野, 晴彦
WEKO
28490
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抄録 | ||||||||||||
内容記述タイプ | Abstract | |||||||||||
内容記述 | Radio frequency (RF) sheaths form near surfaces where plasma and strong RF fields coexist. The effect of these RF sheaths on wave propagation near the boundary can be characterized by an effective sheath impedance that includes both resistive and capacitive contributions describing RF sheath rectification and RF power absorption in the sheath [J. R. Myra and D. A. D'Ippolito, Phys. Plasmas 22, 062507 (2015)]. Here, we define a dimensionless parameter, the ratio of incoming wave impedance to the sheath impedance, which determines the characteristics of the interaction, ranging from quasi-conducting to quasi-insulating, or in the case of matched impedances, to either perfect absorption or a sheath-plasma resonance. A semi-analytical analysis is carried out for electrostatic slow waves in the ion cyclotron range of frequencies. For the propagating slow wave case, where the incident wave is partially reflected, the fraction of power dissipated in the sheath is calculated. For the evanescent slow wave case, which admits a sheath-plasma resonance, an amplification factor is calculated. Using the impedance ratio approach, RF sheath interactions are characterized for a range of RF wave and plasma parameters including plasma density, magnetic field angle with respect to the surface, wave frequency, and wave-vector components tangent to the surface. For a particularly interesting example case, results are compared with the rfSOL code [H. Kohno and J. R. Myra, Comput. Phys. Commun. 220, 129 (2017)]. Finally, electromagnetic effects, absent from the semi-analytical analysis, are assessed. | |||||||||||
書誌情報 |
Physics of Plasmas 巻 26, 号 5, p. 052503-1-052503-14, 発行日 2019-05-08 |
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出版社 | ||||||||||||
出版者 | AIP Publishing | |||||||||||
DOI | ||||||||||||
関連タイプ | isVersionOf | |||||||||||
識別子タイプ | DOI | |||||||||||
関連識別子 | https://doi.org/10.1063/1.5088343 | |||||||||||
日本十進分類法 | ||||||||||||
主題Scheme | NDC | |||||||||||
主題 | 427 | |||||||||||
NCID | ||||||||||||
収録物識別子タイプ | NCID | |||||||||||
収録物識別子 | AA10987555 | |||||||||||
ISSN | ||||||||||||
収録物識別子タイプ | PISSN | |||||||||||
収録物識別子 | 1070-664X | |||||||||||
ISSN | ||||||||||||
収録物識別子タイプ | EISSN | |||||||||||
収録物識別子 | 1089-7674 | |||||||||||
著作権関連情報 | ||||||||||||
権利情報 | Published under license by AIP Publishing. The following article has been submitted to/accepted by Physics of Plasmas. After it is published, it will be found at https://aip.scitation.org/journal/php. | |||||||||||
キーワード | ||||||||||||
主題Scheme | Other | |||||||||||
主題 | radio frequency | |||||||||||
キーワード | ||||||||||||
主題Scheme | Other | |||||||||||
主題 | ICRF | |||||||||||
キーワード | ||||||||||||
主題Scheme | Other | |||||||||||
主題 | sheath | |||||||||||
キーワード | ||||||||||||
主題Scheme | Other | |||||||||||
主題 | impedance | |||||||||||
キーワード | ||||||||||||
主題Scheme | Other | |||||||||||
主題 | tokamak | |||||||||||
出版タイプ | ||||||||||||
出版タイプ | AM | |||||||||||
出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||||||||
査読の有無 | ||||||||||||
値 | yes | |||||||||||
研究者情報 | ||||||||||||
https://hyokadb02.jimu.kyutech.ac.jp/html/100000658_ja.html | ||||||||||||
論文ID(連携) | ||||||||||||
10342452 | ||||||||||||
連携ID | ||||||||||||
7785 |