Effects of ion-atom collisions on the propagation and damping of ion-acoustic waves

H.K. Andersen, N. D'Angelo, Vagn Orla Jensen, Poul Michelsen, P. Nielsen

    Research output: Contribution to journalJournal articleResearchpeer-review

    Abstract

    Experiments are described on ion-acoustic wave propagation and damping in alkali plasmas of various degrees of ionization. An increase of the ratio Te/Ti from 1 to approximately 3-4, caused by ion-atom collisions, results in a decrease of the (Landau) damping of the waves. At high gas pressure and/or low wave frequency a "fluid" picture adequately describes the experimental results.
    Original languageEnglish
    JournalPhysics of Fluids
    Volume11
    Issue number6
    Pages (from-to)1177-1180
    ISSN1070-6631
    DOIs
    Publication statusPublished - 1968

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