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Suprathermal effects in ECRH experiments on Thor Tokamak

A Airoldi, L Argenti, G Cima, S Cirant, F De Luca, A Jacchia, P Mantica, G Ramponi, U Tartari1988年Plasma Physics and Controlled FusionIF 2.2出版社

ECRH experiments on the Thor Tokamak aimed at the investigation of r.f. absorption by suprathermal electrons are discussed. At the lowest densities (ne=3*1012 cm-3) the damping of the injected wave is shown to be dominated by a r.f. enhanced suprathermal population in the presence of a bulk with very low optical thickness, so that a rather pure suprathermal interaction regime occurs. At higher density, localization of heating is lost due to refractive effects and multiple reflections. No evidence is found of conversion into electrostatic electron Bernstein waves of the extraordinary mode propagating quasiperpendicularly from the inner side of the torus.

日本語訳

ThorトカマクにおけるECRH実験は、超熱的電子によるr.f.吸収の調査を目的としたものである。最低密度(ne=3×10¹² cm⁻³)では、注入波の減衰は、光学的厚さが非常に小さいバルクプラズマの存在下で、r.f.により増強された超熱的電子集団によって支配されることが示され、これによりほぼ純粋な超熱的相互作用領域が生じる。より高密度では、屈折効果と多重反射により加熱の局在性が失われる。トーラス内側から準垂直伝播する異常波の静電的電子バーンスタイン波への変換の証拠は見いだされなかった。

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Electron cyclotron heating
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