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Absorption Analysis of Electron Cyclotron Waves in the Magnetospheric Plasma Device RT-1
http://hdl.handle.net/10655/00013475
http://hdl.handle.net/10655/00013475479a40b0-c305-4274-b361-ccf295a0c72d
名前 / ファイル | ライセンス | アクション |
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2022-09-13 | |||||
タイトル | ||||||
タイトル | Absorption Analysis of Electron Cyclotron Waves in the Magnetospheric Plasma Device RT-1 | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | magnetospheric plasma | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | electron cyclotron heating | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | electron cyclotron wave | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | overdense plasma | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | electromagnetic wave propagation | |||||
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 | |||||
著者 |
MORI, Takahiro
× MORI, Takahiro× NISHIURA, Masaki× KENMOCHI, Naoki× UEDA, Kenji× NAKAZAWA, Takuya× YOSHIDA, Zensho |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | The absorption efficiency of electron cyclotron heating is investigated theoretically and experimentally to understand the wave heating mechanisms under the overdense state and the density limit. The features of self-organizing mechanisms have been observed in the dipole confinement system [M. Nishiura et al., Nucl. Fusion 55, 053019 (2015)]. The modulated 2.45 GHz electromagnetic (EM) wave is applied to the RT-1 plasmas to evaluate the EM wave's absorption efficiency from the diamagnetic signals' response. The absorption efficiency maintains a constant 100% beyond the O-mode's cutoff density. However, it decreases rapidly near the 1.6 × 1017 m−3 line-averaged density, which is twice higher than the 2.45 GHz O-mode cutoff. At less than 0.6 × 1017 m−3, the absorption efficiency simulated by a ray-tracing code in a two-dimensional model explains the experimental absorption efficiency. However, it deviates from the experimental value near the cutoff density and is more significant at the density limit. We discuss the difference between the experimental and numerical results. | |||||
書誌情報 |
Plasma and Fusion Research 巻 17, 号 Special Issue 1, p. 2405090, 発行日 2022-08-24 |
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書誌的事項 | ||||||
値 | the 30th International Toki Conference on Plasma and Fusion Research (ITC30) | |||||
出版者 | ||||||
出版者 | The Japan Society of Plasma Science and Nuclear Fusion Research | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 1880-6821 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA12346675 | |||||
DOI | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1585/pfr.17.2405090 | |||||
権利 | ||||||
権利情報 | (c) 2022 The Japan Society of Plasma Science and Nuclear Fusion Research | |||||
関連サイト | ||||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1585/pfr.17.2405090 | |||||
関連名称 | Publisher version | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
NAIS | ||||||
値 | 13573 |