Experimental Investigation on Temporal Evolution of Beam Plasma Discharge

Taro Dodo, Yukio Abe, Seiji Kamata, Ji Han-Tao, Masao Sugawa, Kuniaki Takahashi, Nobuki Kawashima

Research output: Contribution to journalArticle

4 Scopus citations

Abstract

A pulse (∼200 µs) of electron beam (0.3∼1.5 kV, 2∼20 mA) is injected into Argon gas (10-5∼10-4Torr) in a magnetic field (50∼300 G). A two-stream instability develops from low frequency (∼MHz) to high frequency (∼100 MHz) in proportion to the increase of the plasma frequency. When the instability frequency reaches the cyclotron frequency, the wave energy is rapidly transferred by cyclotron damping to the plasma and an ionization avalanche (beam plasma discharge) occurs.

Original languageEnglish (US)
Pages (from-to)173-176
Number of pages4
JournalJapanese Journal of Applied Physics
Volume29
Issue number1 R
DOIs
StatePublished - Jan 1990
Externally publishedYes

All Science Journal Classification (ASJC) codes

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

Keywords

  • Beam plasma discharge
  • Cyclotron damping
  • Electron heating
  • Two stream instability

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  • Cite this

    Dodo, T., Abe, Y., Kamata, S., Han-Tao, J., Sugawa, M., Takahashi, K., & Kawashima, N. (1990). Experimental Investigation on Temporal Evolution of Beam Plasma Discharge. Japanese Journal of Applied Physics, 29(1 R), 173-176. https://doi.org/10.1143/JJAP.29.173