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A simulation environment to simulate lower-hybrid-wave-driven plasmas efficiently
https://repo.qst.go.jp/records/49618
https://repo.qst.go.jp/records/49618278b6680-3079-4aaa-a693-854e24071da2
Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2019-02-13 | |||||
タイトル | ||||||
タイトル | A simulation environment to simulate lower-hybrid-wave-driven plasmas efficiently | |||||
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 |
Roidl, Benedikt
× Roidl, Benedikt× Todo, Yasushi× Takase, Yuichi× Tsujii, Naoto× Ejiri, Akira× Yoshida, Yusuke× Yajima, Satoru× 新屋, 貴浩× 新屋 貴浩 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | In this study a hybrid simulation environment to investigate the lower-hybrid-wave-driven tokamak plasmas is presented, and its application to the spherical tokamak TST-2 is described. These plasma are formed and driven by radio-frequency waves without the use of the central solenoid, and are characterized by low density and low magnetic field. A hybrid simulation environment which is divided into two groups, one using magneto-hydrodynamic (MHD) as well as particle-in-cell (PIC) approaches, and the second group using ray-tracing and Fokker–Planck solvers, is applied to describe the behavior of energetic electrons, bulk plasma, wave propagation, and the wave-particle interaction. Both groups of solvers can be coupled via the energetic-particle velocity distribution function and the equilibrium conditions of magnetic field, pressure, and density profiles to obtain a self-consistent solution. First results show the impact of a selfconsistent equilibrium on ray trajectories and current density profiles. Therefore, new insights in lowerhybrid-wave-driven plasmas of TST-2 can be obtained using the proposed hybrid simulation environment. | |||||
書誌情報 |
Computer Physics Communications 巻 230, p. 38-49, 発行日 2019-02 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0010-4655 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1016/j.cpc.2018.04.018 |