Observation of balmer-alpha line profile of hydrogen atoms in plasmas by rapid-frequency-scan laser spectroscopy

Chikahisa Honda, Mitsuo Maeda, Kiichiro Uchino, Katsunori Muraoka, Masanori Akazaki

研究成果: ジャーナルへの寄稿記事

1 引用 (Scopus)

抜粋

The possibility of an instantaneous determination of the Balmer alpha (Hα) line profile of hydrogen atoms in large plasma devices by rapid-frequency-scan (RAFS) laser spectroscopy is discussed. A detailed analysis of the SN ratio shows that, although the SN ratio in Hαline profile measurements by RAFS is smaller than those in neutral hydrogen density measurements, a remarkable improvement can be obtained by the choice of the optimum saturation parameter and the long-pulse operation. Based on the experiment of the Hαprofile measurement in a hydrogen DC glow discharge plasma by RAFS, the profile distortion in saturated excitation is evaluated. The SN ratio in the profile measurement by RAFS for Heliotron E plasma is estimated from the data on the neutral density measurement.

元の言語英語
ページ(範囲)635-641
ページ数7
ジャーナルJapanese Journal of Applied Physics
27
発行部数4R
DOI
出版物ステータス出版済み - 4 1988

    フィンガープリント

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Physics and Astronomy(all)

これを引用