Abstract

A noninvasive diagnostic technique relying on optical emission spectroscopy is used for studying plasma confined in a purely toroidal magnetic field. Visible emission lines of molecular hydrogen were specifically targeted. Bi-dimensional structures and poloidal plasma profiles were reconstructed from the emissivity distribution of hydrogen Fulcher system using a tomographic method. A few details concerning the methods employed to capture different emission viewlines, data reduction and tomographic reconstruction techniques are also addressed. We report also the first measurement of the excitation temperature of the \(\text {H}_2\) [3c] level in the center of the plasma column, \(T_{\mathrm{exc}}=0.67 \pm 0.11\) eV.

Graphic Abstract

中文翻译：

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在简单磁化的环形等离子体中发射H $$ _ {2} $$ 2的光谱研究

摘要

依靠光发射光谱学的非侵入性诊断技术被用于研究局限于纯环形磁场的等离子体。分子氢的可见发射线是专门针对的。使用层析成像方法根据氢福尔歇系统的发射率分布重建二维结构和多倍体等离子体轮廓。还介绍了一些有关捕获不同发射视线的方法，数据缩减和层析成像重建技术的细节。我们还报告了等离子柱中心\（\ text {H} _2 \） [3c]能级的激发温度的第一次测量，\（T _ {\ mathrm {exc}} = 0.67 \ pm 0.11 \ ） eV。

图形摘要