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Possible Control Scenario of Radial Electric Field by Loss-Cone-Particle Injection into Helical Device

http://hdl.handle.net/10655/160
http://hdl.handle.net/10655/160
40e2fb52-bf62-4862-baf3-1b0621be2aca
名前 / ファイル ライセンス アクション
NIFS-607.pdf NIFS-607.pdf (914.4 kB)
Item type 研究報告書 / Research Paper(1)
公開日 2009-02-26
タイトル
タイトル Possible Control Scenario of Radial Electric Field by Loss-Cone-Particle Injection into Helical Device
言語 en
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_18ws
資源タイプ research report
著者 Motojima, O.

× Motojima, O.

en Motojima, O.

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Shishkin, A. A.

× Shishkin, A. A.

en Shishkin, A. A.

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Inagaki, S.

× Inagaki, S.

en Inagaki, S.

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Watanabe, K. Y.

× Watanabe, K. Y.

en Watanabe, K. Y.

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抄録
内容記述タイプ Abstract
内容記述 The possibility of controlling the radial electric field of toroidal plasmas by injecting high energy electrons along the reversible loss cone orbit of the helical magnetic traps is investigated. It is well known that the radial electric field plays an important role in the confinement improvement scenario especially in the low collisional regime under the physics picture of neoclassical theory. For this purpose, it is made clear that the most suitable particles are transit particles, which show a transition from helically trapped orbits to blocked ones. It is also found that a parallel AC electric field launched from outside assists this transition and makes it possible for particles to penetrate deeply into the plasma. In addition we clarify that the viscosity of the plasma coupled with the helical field configuration provide a bifurcation of plasma states and its stable solution results in confinement improvement.
書誌情報 en : Research Report NIFS-Series

発行日 1999-08-01
報告書番号
NIFS-607
ISSN
収録物識別子タイプ ISSN
収録物識別子 0915-633X
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