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Nonresonant Current Drive by RF Helicity Injection
http://hdl.handle.net/10655/2805
http://hdl.handle.net/10655/2805bb286c5a-6b43-4878-aef1-951f4ee968f4
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 | Nonresonant Current Drive by RF Helicity Injection | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | helicity injection | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | current-drive | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | rf helicity | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | nonresonant force | |||||
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 |
"Fukuyama, A.
× "Fukuyama, A.× Itoh, S.-I.× Itoh, K.× Hamamatsu, K.× Chan, V. S.× Chiu, S. C.× Miller, R. L.× Ohkawa, T." |
|||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | "Current drive via nonresonant interaction between RF waves and plasma is studied by using the kinetic wave analysis and computation in a stationary state. The nonresonant interaction generates a force, in addition to the usual ponderomotive force. The force of our concern mainly acts as an internal force among plasma species; the net momentum input from the wave to the plasma is small in this process. The current driven by this process is not included in the conventional current drive scheme (i.e. resonant absorption of the parallel wave momentum or wave energy), and appears associated with the change of the RF wave helicity l<tilde{A} >tilde{B}. The analysis is applied to ICRF waves in large tokamaks. The one dimensional wave analysis code (TASK/W1) shows that the conversion ratio of the RF wave helicity to the DC helicity becomes close to one in the case of hot plasmas . The current drive efficiency by the RF helicity injection is not necessarily bounded by the conventional RF current drive efficiency. Preliminary study suggests that it scales strongly with electron temperature and toroidal magnetic field but only weakly with plasma density." | |||||
書誌情報 |
en : Research Report NIFS-Series 発行日 1990-10-01 |
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報告書番号 | ||||||
NIFS-059 | ||||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0915-633X |