Abstract In this paper, we demonstrate the use of hydrogen Balmer Hα spectral line for plasma electron density determination with a similar accuracy as is obtained by using the hydrogen Balmer Hβ spectral line. The reason for this is that Hβ often cannot be used for plasma electron density determination in many experiments. Theories that treat Hα line give different relation between halfwidth and electron density. The corresponding numerical procedure for the correction of electron density obtained from Hα line is established in this paper. For that purpose, experimental line profiles emitted from an electric wall stabilized dc and pulsed arc and laser produced plasma were used, as well as the experimental data available in the literature.

中文翻译：

---

使用氢气 BALMER Hα 谱线测定等离子体密度，提高精度

摘要 在本文中，我们展示了使用氢 Balmer Hα 谱线进行等离子体电子密度测定，其精度与使用氢 Balmer Hβ 谱线获得的精度相似。这样做的原因是在许多实验中，Hβ通常不能用于等离子体电子密度的测定。处理 Hα 线的理论给出了半宽度和电子密度之间的不同关系。本文建立了相应的修正由Hα线得到的电子密度的数值程序。为此，使用了从电壁稳定直流和脉冲电弧和激光产生的等离子体发射的实验线轮廓，以及文献中可用的实验数据。