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Positive biasing of plasma in front of LH antennae

F Zacek, V Petrzilka, M Goniche2005年Plasma Physics and Controlled FusionIF 2.2出版社

It has been shown on tokamak CASTOR by using an emissive Langmuir probe that positive plasma 'biasing' takes place in a radially very narrow layer just at the grill mouth. The effect scales linearly with the power applied. Apparently, this positive biasing results from the charge separation due to the escaping electrons, accelerated by the near field lower hybrid wave effects in this region, along the magnetic field lines (Fuchs V et al 1996 Phys. Plasmas3 4023).

日本語訳

トカマクCASTORにおいて、発光性ラングミュアプローブを用いることにより、正のプラズマバイアスがグリル口直近の非常に狭い動径層で生じることが示された。この効果は印加電力に線形に比例する。明らかに、この正のバイアスは、この領域における近接場の低混成波効果によって加速された電子が磁力線に沿って逃散することによる電荷分離に起因する(Fuchs V et al 1996 Phys. Plasmas 3 4023)。

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