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Effects of non-thermal electron distributions on parallel electron cyclotron emission and absorption for energetic electrons in mirror devices

C J Lasnier, R F Ellis1988年Plasma Physics and Controlled FusionIF 2.2出版社

Calculations are presented of the effects of nonthermal features on electron cyclotron emission parallel to the magnetic field from energetic electrons in a mirror geometry. The calculations were performed using a one-dimensional radiation transport model with fully relativistic emission and absorption coefficients and generic axial profiles, which allow comparison of the results to a variety of experiments. Where necessary, specific parameters were chosen to be representative of present-day large mirror devices. Primary focus is on the conditions for which the emission is optically thick and the relationship between the radiation temperature (intensity) and the temperature of a primary hot component. It is demonstrated that for many (but not all) conditions the radiation temperature is a useful measure of the hot electron temperature. In particular, dilute super hot tails on the distribution do not adversely affect the radiation temperature to any great degree.

日本語訳

計算結果は、ミラー形状における高エネルギー電子からの電子サイクロトロン放射に平行な磁場成分に対する非熱的特徴の影響について示されている。計算は、完全な相対論的吸収・放射係数を備えた一次元放射輸送モデルを用いて行われ、その結果は様々な実験と比較できるようになっている。必要に応じて、パラメータは現在の大型ミラー装置を代表する値に設定された。主な焦点は、放射が光学的に厚くなる条件と、放射温度(強度)と主要な高温成分の温度との関係にある。多くの(ただし全てではない)条件下で、放射温度は高温電子温度の有効な指標となることが示された。特に、希薄な超高温テール成分が存在しても、放射温度は大きな影響を受けない。

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Electron cyclotron emission
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