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Methods of determining the density and temperature distribution of a plasma using electromagnetic waves

V.V. Nemov, V.L. Sizonenko, K.N. Stepanov, J. Teichmann1969年被引用 6Nuclear FusionIF 3出版社

The authors consider a number of methods of determining the density and temperature distributions along the radius of a plasma cylinder. Determination of the electron density and temperature distributions by measuring the electron cyclotron damping or the phase of an electromagnetic wave passing in a straight line through a plasma cylinder as a function of the "sighting" distance. If the electron velocity distribution is not Maxwellian, additional measurements of the absorption or the phase as a function of the magnetic field or of the angle between the direction of the ray and the magnetic field enable one to find the electron velocity distribution function along the magnetic field at each point in the plasma cylinder. Determination of the plasma density distribution from the fraction of a microwave ray passing through a plasma in a direction perpendicular to the magnetic field, and determination of the effective collision frequency distribution from damping of the intensity of the refracted ray. Determination of the temperature of a plasma in a strong magnetic field from the measured frequency-dependence of the absorption of low-frequency electromagnetic waves under conditions of acoustic resonance.

日本語訳

著者らは、プラズマ円柱の半径に沿った密度分布と温度分布を決定するいくつかの方法を考察する。電子サイクロトロン減衰、またはプラズマ円柱を直線的に通過する電磁波の位相を「視線」距離の関数として測定することによる、電子密度分布と温度分布の決定。電子速度分布がマックスウェル分布ではない場合、吸収または位相の、磁場の関数として、あるいは光線の方向と磁場との間の角度の関数としての追加測定により、プラズマ円柱内の各点における磁場に沿った電子速度分布関数を見いだすことができる。磁場に垂直な方向にプラズマを通過するマイクロ波光線の割合からのプラズマ密度分布の決定、および屈折光線の強度の減衰からの実効衝突周波数分布の決定。音響共鳴条件下での低周波電磁波の吸収の測定された周波数依存性からの、強磁場中のプラズマの温度の決定。

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Electromagnetic waves
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