A 2-photon LIF study on the expansion behaviour of a plasma beam generated from a mixture of Ar and H/sub 2/

S. Mazouffre, M.G.H. Boogaarts, I.S.J. Bakker, J.J.A.M. Mullen, van der, D.C. Schram

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

Abstract

In an expanding plasma created by a cascaded arc from a Ar-H/sub 2/ mixture, spatially resolved densities, temperatures, and velocities of ground state atomic hydrogen are obtained by applying two-photon excitation laser induced fluorescence. The axial velocity profile of H indicates a strong coupling between Ar and H atoms. However, the atomic hydrogen density and temperature profiles cannot be fully described in terms of a supersonic expansion model in contrast with the profiles of Ar. There are several indications that hydrogen atoms can escape the supersonic domain by a scattering process
Original languageEnglish
Title of host publicationFrontiers in low temperature plasma diagnostics III : book of papers ; Saillon, Switzerland, 15. - 19.2.1999
Place of PublicationLausanne
PublisherEcole Polytechnique Fédérale de Lausanne
Pages265-268
Publication statusPublished - 1999
EventFrontiers in Low Temperature Plasma Diagnostics III, February 15-19, 1999, Saillon, Switzerland - Saillon, Switzerland
Duration: 15 Feb 199919 Feb 1999

Publication series

NameLRP / Ecole Polytechnique Fédérale de Lausanne
Volume629/99

Workshop

WorkshopFrontiers in Low Temperature Plasma Diagnostics III, February 15-19, 1999, Saillon, Switzerland
CountrySwitzerland
CitySaillon
Period15/02/9919/02/99

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