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Impact of hydrogen isotope species on microinstabilities in helical plasmas
http://hdl.handle.net/10655/00012924
http://hdl.handle.net/10655/000129247fc2cbb4-53b8-42e4-80b4-c4cef67f4801
名前 / ファイル | ライセンス | アクション |
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Plasma.Phys.Contr.Fusion_58_pp074008 (343.0 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2022-01-19 | |||||
タイトル | ||||||
タイトル | Impact of hydrogen isotope species on microinstabilities in helical plasmas | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | helical plasmas | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | gyrokinetic simulation | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | isotope effects | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | microinstabilities | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | turbulent transport | |||||
キーワード | ||||||
主題Scheme | Other | |||||
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 |
NAKATA, Motoki
× NAKATA, Motoki× NUNAMI, Masanori× SUGAMA, Hideo× WATANABE, Tomo-Hiko |
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著者ID | ||||||
内容記述タイプ | Other | |||||
内容記述 | 0000-0003-2693-4859 | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | The impact of isotope ion mass on ion-scale and electron-scale microinstabilities such as ion temperature gradient (ITG) mode, trapped electron mode (TEM), and electron temperature gradient (ETG) mode in helical plasmas are investigated by using gyrokinetic Vlasov simulations with a hydrogen isotope and real-mass kinetic electrons. Comprehensive scans for the equilibrium parameters and magnetic configurations clarify the transition from ITG mode to TEM instability, where a significant TEM enhancement is revealed in the case of inward-shifted plasma compared to that in the standard configuration. It is elucidated that the ion-mass dependence on the ratio of the electron–ion collision frequency to the ion transit one, i.e. ${{\nu}_{\text{ei}}}/{{\omega}_{\text{ti}}}\propto {{\left({{m}_{\text{i}}}/{{m}_{\text{e}}}\right)}^{1/2}}$ , leads to a stabilization of the TEM for heavier isotope ions. The ITG growth rate indicates a gyro-Bohm-like ion-mass dependence, where the mixing-length estimate of diffusivity yields $\gamma /k_{\bot}^{2}\propto m_{\text{i}}^{1/2}$ . On the other hand, a weak isotope dependence of the ETG growth rate is identified. A collisionality scan also reveals that the TEM stabilization by the isotope ions becomes more significant for relatively higher collisionality in a banana regime. | |||||
書誌情報 |
Plasma Physics and Controlled Fusion 巻 58, 号 7, p. 074008, 発行日 2016-06-03 |
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書誌的事項 | ||||||
Special Issue on the 20th International Stellarator-Heliotron Workshop | ||||||
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 | 07413335 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA10643410 | |||||
DOI | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1088/0741-3335/58/7/074008 | |||||
権利 | ||||||
権利情報 | This is the Accepted Manuscript version of an article accepted for publication in Plasma Physics and Controlled Fusion. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at https://doi.org/10.1088/0741-3335/58/7/074008. | |||||
情報源 | ||||||
関連名称 | Motoki Nakata et al 2016 Plasma Phys. Control. Fusion 58 074008 | |||||
関連サイト | ||||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1088/0741-3335/58/7/074008 | |||||
関連名称 | Publisher version | |||||
著者版フラグ | ||||||
出版タイプ | AM | |||||
出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||
NAIS | ||||||
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