Operational Characteristics of a Helium Microwave-Induced Plasma at Atmospheric Pressure.

Abstract

The microwave-induced helium plasma generated at atmospheric pressure in the TM010 resonant cavity is attractive as an excitation source for emission spectrometry. The efficiency of the cavity produces an extremely high energy-density plasma and its short longitudinal dimension permits close spatial and photometric monitoring system proximity between the plasma and different types of sampling devices. Examination of the electron density, excitation temperature and rotational temperature in this microwave plasma reveals its unusual character and suggests certain mechanisms of operation. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Jan 26, 1981
Accession Number
ADA094343

Entities

People

  • Andrew T. Zander
  • Gary M. Hieftje

Organizations

  • Indiana University

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Barometric Pressure
  • California
  • Cavity Resonators
  • Chemistry
  • Civil Engineering
  • Electron Density
  • Electrons
  • Emission Spectroscopy
  • Energy
  • Energy Levels
  • Flow Rate
  • Materials
  • Military Research
  • New York
  • Power Levels
  • United States
  • Universities

Fields of Study

  • Physics

Readers

  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Pulsed Power and Plasma Physics.
  • Spectroscopy.

Technology Areas

  • Microelectronics