论文标题

LHD中高电荷钨离子的可见发射光谱:II。钨离子温度的评估

Visible emission spectroscopy of highly charged tungsten ions in LHD: II. Evaluation of tungsten ion temperature

论文作者

Fujii, K, Takahashi, Y, Nakai, Y, Kato, D, Goto, M, Morita, S, Hasuo, M, Group, LHD Experiment

论文摘要

我们展示了对高电荷钨离子(λ0= 668.899 nm,Shinohara等人Phys。Scr。90125402)的可见发射线的极化高分辨率光谱。它的光谱曲线显示出扩展和极化依赖性,分别归因于多普勒和Zeeman效应。首次从可见的发射线扩展中评估了钨离子温度,其发射位置由用多个和弦观察到的和弦集成发射强度的亚伯反转确定。发现钨离子温度接近氦气状的氩离子温度,该温度被用作LHD中的离子温度监测器

We demonstrated a polarization-resolved high resolution spectroscopy of a visible emission line of highly charged tungsten ions (λ0 = 668.899 nm, Shinohara et al Phys. Scr. 90 125402) for the large helical device (LHD) plasma, where the tungsten ions were introduced by a pellet injection. Its spectral profile shows broadening and polarization dependence, which are attributed to the Doppler and Zeeman effects, respectively. The tungsten ion temperature was evaluated for the first time from the broadening of visible the emission line, with its emission location determined by the Abel inversion of the chord-integrated emission intensities observed with multiple chords. The tungsten ion temperature was found to be close to the helium-like argon ion temperature, which is used as an ion temperature monitor in LHD

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