Laser resonance scattering studies of the development of a potential step in a low-density dc discharge in hydrogen

Kiichiro Uchino, Kazuyuki Koga, Yoshito Sonoda, Katsunori Muraoka, Masanori Akazaki

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

The populations of hydrogen atoms in the excited states (In=2 and 3) across the potential step in a DC discharge at low pressure have been measured bylaser resonance scattering, with the laser tuned to the Balmer alpha transition (Hα, wavelength 656.3 nm). The results were used first to deduce the amplitude of the ion-acoustic turbulence, which was excited by the electron-ion streaming instability at the step. The amplitude was high enough to explain the anomalously high electrical resistivity there. Second, the results were used to discuss the cause of the luminosity jump, due to the behavior of electrons distributed in the potential of the ion-acoustic turbulence.

Original languageEnglish
Pages (from-to)906-911
Number of pages6
JournalJapanese Journal of Applied Physics
Volume21
Issue number6R
DOIs
Publication statusPublished - Jan 1 1982

Fingerprint

resonance scattering
Scattering
Hydrogen
Lasers
Ions
Turbulence
hydrogen
Acoustics
turbulence
lasers
ions
acoustics
Electrons
Excited states
Luminance
hydrogen atoms
electrons
low pressure
direct current
luminosity

All Science Journal Classification (ASJC) codes

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

Cite this

Laser resonance scattering studies of the development of a potential step in a low-density dc discharge in hydrogen. / Uchino, Kiichiro; Koga, Kazuyuki; Sonoda, Yoshito; Muraoka, Katsunori; Akazaki, Masanori.

In: Japanese Journal of Applied Physics, Vol. 21, No. 6R, 01.01.1982, p. 906-911.

Research output: Contribution to journalArticle

Uchino, Kiichiro ; Koga, Kazuyuki ; Sonoda, Yoshito ; Muraoka, Katsunori ; Akazaki, Masanori. / Laser resonance scattering studies of the development of a potential step in a low-density dc discharge in hydrogen. In: Japanese Journal of Applied Physics. 1982 ; Vol. 21, No. 6R. pp. 906-911.
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