Bragg scattering measurement of atmospheric plasma decay

Y. S. Zhang, Spencer Kuo

Research output: Contribution to journalArticle

Abstract

The decay processes of the plasma layers generated by two intersecting microwave pulses in 1 torr dry air are investigated by Bragg scattering method. The results of measurement show that the electrons decay initially at the three-body attachment rate. However, when enough negative molecule ions are produced through the electron attachment process, the regeneration of electrons via detachment process is increased and eventually balances out the electron attachment loss. The net electron loss is then dominated by the recombination process. The temporal evolution of electron density has also been reproduced by the numerical result of a system of three modal equations for a best fit detachment rate vd=2×103sec-1.

Original languageEnglish (US)
Pages (from-to)335-343
Number of pages9
JournalInternational Journal of Infrared and Millimeter Waves
Volume12
Issue number4
DOIs
StatePublished - Apr 1991

Fingerprint

plasma decay
electron attachment
Scattering
Plasmas
detachment
Electrons
scattering
plasma layers
electrons
decay
regeneration
attachment
microwaves
air
Carrier concentration
pulses
Microwaves
molecules
ions
Molecules

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Physics and Astronomy (miscellaneous)
  • Electrical and Electronic Engineering

Cite this

Bragg scattering measurement of atmospheric plasma decay. / Zhang, Y. S.; Kuo, Spencer.

In: International Journal of Infrared and Millimeter Waves, Vol. 12, No. 4, 04.1991, p. 335-343.

Research output: Contribution to journalArticle

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