Short lived afterglow of nitrogen microwave discharge revisited

N. Sadeghi, A. Campargue, C. Foissac, P. Supiot, S. Mazouffre, R.A.H. Engeln, D.C. Schram

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademic

Abstract

In an effort to obtain a better understanding of the neutral-neutral reactions responsible for the formation of the short lived afterglow (SLA), several diagnostic techniques have been implemented in the same flow tube to probe the axial dependence of the density of neutral species N and N/sub 2/ but also of the electrons resulting from ionisation processes in the afterglow. The absolute ground state nitrogen atom N density is determined by means of an original calibration method based on two-photon absorption laser induced fluorescence spectroscopy. The intra-cavity laser absorption spectroscopy was shown as a powerful approach to directly determine the N/sub 2/ absolute density and also the gas temperature, with a very high sensitivity. Additionally, a first determination of the absolute electron density by microwave interferometry was completed. Supported by the set of data obtained under the same experimental conditions, a simple kinetic model is proposed and discussed to account for the observed behaviors of the different species density
Original languageEnglish
Title of host publicationProceedings of the 25th International Conference on Phenomena in Ionised Gases (XXV ICPIG 2001) 17-22 July 2001, Nagoya, Japan
EditorsT. Goto
Place of PublicationNagoya
PublisherNagoya University
Pages279-280
ISBN (Print)4-9900915-2-3
Publication statusPublished - 2001
Event25th International Conference on Phenomena in Ionized Gases (ICPIG 2001), July 17-22, 2001, Nagoya, Japan - Nagoya, Japan
Duration: 17 Jul 200122 Jul 2001

Conference

Conference25th International Conference on Phenomena in Ionized Gases (ICPIG 2001), July 17-22, 2001, Nagoya, Japan
Abbreviated titleICPIG 2001
CountryJapan
CityNagoya
Period17/07/0122/07/01

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