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Doppler Spectroscopy System for the Plasma Velocity Measurements in SMOLA Helical Mirror

机译:用于SMOLA螺旋镜中等离子体速度测量的多普勒光谱系统

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The measurements of the plasma velocity in the SMOLA helical mirror by observation of the Doppler shift of the Hα spectral lines emission were done by high spatial resolution spectrometer. A set of experiments was carried out with the different configuration and amplitude of the magnetic field. Potential is driven by plasma gun potentials. The radial distribution of the Doppler shift of the Hα line is used to calculate the velocity of neutral hydrogen, which gives the estimate of the plasma rotation velocity ω ≈ 10sup6 /supssup?1/sup. The indicated velocity corresponds to the presence of the radial electric field E ~ 70 V/cm. The dependence of the plasma rotation velocity on the radial profile of the electrostatic potential is discussed.
机译:通过观察Hα谱线发射的多普勒频移来测量SMOLA螺旋镜中的等离子体速度是通过高空间分辨率光谱仪完成的。使用不同的磁场配置和振幅进行了一组实验。电位由等离子枪电位驱动。 Hα线的多普勒频移的径向分布用于计算中性氢的速度,从而估算出等离子体旋转速度ω≈10 6 s ?1 。显示的速度对应于径向电场E〜70 V / cm的存在。讨论了等离子体旋转速度对静电势的径向分布的依赖性。

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