PLASMA OSCILLATIONS IN LOW PRESSURE GASEOUS DISCHARGES

Abstract

Druyvesteyn analysis (using electonic methods for obtaining first and second derivatives of probe current versus probe potential) and Langmuir probe techniques, are utilized for the investigation of discharges in neon, argon, and krypton at ten microns pressure. Plasma densitieb as determined from the positive ion section of the probe current curves, from Druyvesteyn analysis, and from observed electron oscillation frequencies, are compared with oscillation amplitudes. Electron oscillations were not detected throughout the discharge; however, at some positions multiple frequencies were detected. Ion oscillations, detected throughout the discharge, corresponded in magnitude to Langmuir electrostatic sound waves, and peaked in amplitude with the electron oscillations.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1963
Accession Number
AD0481429

Entities

People

  • Robert J. Ketchel
  • William M. Zobel

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Acoustic Propagation
  • Amplitude
  • Discharge Tubes
  • Electron Density
  • Electron Energy
  • Electron Tubes
  • Electronic Equipment
  • Electrons
  • Frequency
  • Langmuir Probes
  • Measurement
  • Oscillation
  • Pressure Measurement
  • Resonant Frequency
  • Sound Waves
  • Two Dimensional
  • Waves

Fields of Study

  • Physics

Readers

  • Plasma Physics.

Technology Areas

  • Microelectronics