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Comparison of MHD stability between positive- and negative- triangularity tokamak plasmas with internal transport barriers
https://repo.qst.go.jp/records/85397
https://repo.qst.go.jp/records/8539757a33688-44ff-4290-8056-5b206cfaf5f8
Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2022-03-18 | |||||
タイトル | ||||||
タイトル | Comparison of MHD stability between positive- and negative- triangularity tokamak plasmas with internal transport barriers | |||||
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 |
Yusai, Masamoto
× Yusai, Masamoto× Nobuyuki, Aiba× Masaru, Furukawa× Nobuyuki, Aiba |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Ideal magnetohydrodynamics (MHD) stability of tokamak plasmas is compared between positive and negative triangularity cross sections. The bootstrap current is included that is determined from the density and temperature profiles. This is crucial for a DEMO reactor design. The density and temperature profiles are chosen to have internal transport barriers (ITBs), which are necessary if an H-mode edge cannot be expected. The ideal MHD stability is examined in a wide range of the ITB position and the central temperature. We confirmed that ballooning modes are prone to be unstable when the ITB is located near the plasma edge for negative triangularity. Internal kink modes become dominant instability when the ITB is located inner side of the plasma for both positive and negative triangularities. We have succeeded to stabilize both ballooning and internal kink modes by introducing additional currents to control the safety factor profiles in a favorable manner. | |||||
書誌情報 |
Plasma and Fusion Research 巻 17, p. 2403038, 発行日 2022-03 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 1880-6821 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1585/pfr.17.2403038 | |||||
関連サイト | ||||||
識別子タイプ | URI | |||||
関連識別子 | http://www.jspf.or.jp/PFR/PFR_articles/pfr2022/pfr2022_17-2403038.html |