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Experimental characterization and modelling of the particle source in an Electron-Cyclotron wave driven toroidal plasma

M Podestà, A Fasoli, B Labit, M McGrath, S H Müller, F M Poli2006年Plasma Physics and Controlled FusionIF 2.2出版社

The plasma particle source resulting from ionization by microwaves in the electron-cyclotron range of frequencies is investigated in the simple magnetized torus TORPEX (Fasoli A et al 2006 Phys. Plasmas13 055902), together with its dependence upon experimental parameters, such as the absorbed microwave power, the magnetic field configuration and the neutral gas pressure. The relative contributions to the ionization rate from thermal electrons and from suprathermal electrons accelerated at the plasma resonances are quantified through a global particle balance. An expression for the spatial profile of the particle source is derived from the experimental results and a simple numerical code.

日本語訳

電子サイクロトロン周波数帯のマイクロ波による電離に起因するプラズマ粒子源を、単純磁化トーラスTORPEX(Fasoli Aら 2006 Phys. Plasmas 13 055902)において、吸収マイクロ波パワー、磁場配位、中性ガス圧などの実験パラメータへの依存性とともに調査する。熱電子およびプラズマ共鳴で加速された超熱電子による電離率への寄与を、グローバル粒子バランスを通じて定量化する。粒子源の空間プロファイルの式を、実験結果と簡易数値コードから導出する。

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