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Hybrid simulation of NBI fast-ion losses due to the Alfvén eigenmode bursts in the Large Helical Device and the comparison with the fast-ion loss detector measurements
http://hdl.handle.net/10655/00012890
http://hdl.handle.net/10655/00012890c2b93942-969d-4e13-a8cb-684e1abc010b
名前 / ファイル | ライセンス | アクション |
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J.Phys.Plasmas86_pp905860520 (17.6 MB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2022-01-18 | |||||
タイトル | ||||||
タイトル | Hybrid simulation of NBI fast-ion losses due to the Alfvén eigenmode bursts in the Large Helical Device and the comparison with the fast-ion loss detector measurements | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | fusion plasma | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | plasma simulation | |||||
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 |
SEKI, Ryosuke
× SEKI, Ryosuke× TODO, Yasushi× SUZUKI, Yasuhiro× OGAWA, Kunihoro× ISOBE, Mitsutaka× SPONG, Donald A.× OSAKABE, Masaki |
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著者ID | ||||||
内容記述タイプ | Other | |||||
内容記述 | 0000-0002-5364-805X | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | The multiphase simulations are conducted with the kinetic-magnetohydrodynamics hybrid code MEGA to investigate the spatial and the velocity distributions of lost fast ions due to the Alfvén eigenmode (AE) bursts in the Large Helical Device plasmas. It is found that fast ions are lost along the divertor region with helical symmetry both before and during the AE burst except for the promptly lost particles. On the other hand, several peaks are present in the spatial distribution of lost fast ions along the divertor region. These peaks along the divertor region can be attributed to the deviation of the fast-ion orbits from the magnetic surfaces due to the grad-B and the curvature drifts. For comparison with the velocity distribution of lost fast ions measured by the fast-ion loss detector (FILD), the ‘numerical FILD’ which solves the Newton–Lorentz equation is constructed in the MEGA code. The velocity distribution of lost fast ions detected by the numerical FILD during AE burst is in good qualitative agreement with the experimental FILD measurements. During the AE burst, fast ions with high energy (100–180 keV) are detected by the numerical FILD, while co-going fast ions lost to the divertor region are the particles with energy lower than 50 keV. | |||||
書誌情報 |
Journal of Plasma Physics 巻 86, 号 5, p. 905860520, 発行日 2020-10 |
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出版者 | ||||||
出版者 | Cambridge University Press | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 00223778 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA00705205 | |||||
DOI | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1017/S0022377820000987 | |||||
権利 | ||||||
権利情報 | Copyright © The Author(s), 2020. Published by Cambridge University Press | |||||
情報源 | ||||||
関連名称 | Seki, R., Todo, Y., Suzuki, Y., Ogawa, K., Isobe, M., Spong, D., & Osakabe, M. (2020). Hybrid simulation of NBI fast-ion losses due to the Alfvén eigenmode bursts in the Large Helical Device and the comparison with the fast-ion loss detector measurements. Journal of Plasma Physics, 86(5), 905860520. doi:10.1017/S0022377820000987 | |||||
関連サイト | ||||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1017/S0022377820000987 | |||||
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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