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Effects of Electric Field on Particle Drift Orbits in a l =2 Torsatron
http://hdl.handle.net/10655/3115
http://hdl.handle.net/10655/311507201238-5821-435a-9c69-edd286d01dc8
Item type | 研究報告書 / Research Paper(1) | |||||
---|---|---|---|---|---|---|
公開日 | 2010-02-05 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Effects of Electric Field on Particle Drift Orbits in a l =2 Torsatron | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | "Drift equations,torsatrons,numerical calculations | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | particle orbits,loss regions,ripple modulation | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | radial electric field" | |||||
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 | |||||
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 |
"Sanuki, H.
× "Sanuki, H.× Kamimura, T.× Hanatani, K.× Itoh, K.× Todoroki, J." |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | "Particle orbits and loss regions in both real and velocity spaces are studied on the basis of the guiding center drift equations in magnetic coordinares. The boundary of loss region in pitch angle-radius (chi-rho) plane is determined from the condition whether the drift surfaces for helically trapped and transition particles reach the outermost magnetic surface or not. The loss boundaries for the absolute particle confinement, within of which boundary no particles are lost, is evaluated. Effects of the radial electric field, E_gamma on drift orbits and loss regions are discussed in detail. When ion motion is considered, the poloidal rotation modified by a positive E_gamma reduces a number of trapped particles and consequently it leads the improvement of particle confinement. For a small negative E_gamma there is a possible particle loss caused by the helical resonance. The loss rate of ions caused by loss cone in collisionless limit is evaluated in the presence of E_gamma . Effect of ripple modulation on the loss region is also discussed briefly." | |||||
書誌情報 |
en : Research Report NIFS-Series 発行日 1990-05-01 |
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報告書番号 | ||||||
NIFS-031 | ||||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0915-633X |