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Dependence of the Pickup-Like Ion Effective Heating on the Poloidal and Toroidal Magnetic Fields during Magnetic Reconnection
http://hdl.handle.net/10655/00012647
http://hdl.handle.net/10655/00012647b36fe80a-f1b1-4009-95ef-7203ae771f36
名前 / ファイル | ライセンス | アクション |
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Phys.Plasmas26_102103 (2.1 MB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2021-09-22 | |||||
タイトル | ||||||
タイトル | Dependence of the Pickup-Like Ion Effective Heating on the Poloidal and Toroidal Magnetic Fields during Magnetic Reconnection | |||||
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 | |||||
著者 |
USAMI, Shunsuke
× USAMI, Shunsuke× HORIUCHI, Ritoku× OHTANI, Hiroaki× Ono, Yasushi× INOMOTO, Michiaki× TANABE, Hiroshi |
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著者ID | ||||||
内容記述タイプ | Other | |||||
内容記述 | 0000-0003-2605-5600 | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | The dependence of the ion effective heating on the poloidal (reconnection) and toroidal (guide) magnetic fields during magnetic reconnection in the presence of a guide magnetic field is investigated by means of particle simulations, which mimic merging plasmas in a spherical tokamak. In previous works, our simulations demonstrated that the ion temperature perpendicular to the magnetic field grows mainly in the downstream, in which ring-shaped velocity distributions are formed. This means that ions are effectively heated. The basic theory explains that the ring-shaped distribution is formed by the ions which rotate around the guide magnetic field while E × B drifting. In this work, the basic theory is extended to a more general theory including not only a ring-shaped distribution, but also a circular-arc-shaped distribution. The generalized theory explains that the effective temperature changes by the radius and the central angle of the arc-shaped velocity distribution and conjectures the dependence of the ion effective heating on the poloidal and toroidal magnetic fields. The simulations show that the ion heating energy is proportional to the square of the poloidal magnetic field, whereas the ion temperature decreases as the toroidal field is larger, but the toroidal field dependence becomes small for the regime of high toroidal field. These tendencies are consistent with those observed in experiments. | |||||
書誌情報 |
Physics of Plasmas 巻 26, p. 102103, 発行日 2019-10-02 |
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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 | 1070664X | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA10987555 | |||||
DOI | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1063/1.5099423 | |||||
権利 | ||||||
権利情報 | This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in Physics of Plasmas 26, 102103 (2019) and may be found at https://aip.scitation.org/doi/abs/10.1063/1.5099423. | |||||
情報源 | ||||||
関連名称 | Physics of Plasmas 26, 102103 (2019) | |||||
関連サイト | ||||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1063/1.5099423 | |||||
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 | ||||||
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