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Finite Larmor radius effects on Alfvén wave current drive in low-aspect ratio tokamaks

K Komoshvili, S Cuperman, C Bruma1998年Plasma Physics and Controlled FusionIF 2.2出版社

Alfvén wave current drive (AWCD) in low-aspect ratio tokamaks (LARTs) is studied numerically. For this, the full-wave equation with a Vlasov-based dielectric tensor is solved by relaxation techniques, subject to appropriate boundary conditions at the plasma centre and at the plasma-vacuum interface, as well as the concentric antenna current sheet and at the external metallic wall. A systematic investigation of the physical characteristics of the AWCD generated in LARTs when kinetic effects are considered is carried out and illustrative results are presented and discussed.

日本語訳

低アスペクト比トカマク(LART)におけるアルヴェン波電流駆動(AWCD)を数値的に研究する。このため、フル波動方程式をヴラソフに基づく誘電テンソルを用いて緩和法により解き、プラズマ中心およびプラズマ・真空境界、さらに同心円状のアンテナ電流シートおよび外部金属壁における適切な境界条件を課す。運動論的効果を考慮した場合にLARTにおいて生成されるAWCDの物理的特性について系統的な調査を行い、例示的な結果を示し考察する。

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Alfvén waveCurrent driveLarmor radiusWave current driveFinite Larmor radius
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