Propagation Properties of Density Pulses in an Ion-Beam Plasma System

Poul Michelsen, Jens Juul Rasmussen, N. Sato

    Research output: Contribution to journalJournal articleResearchpeer-review

    Abstract

    Numerical calculations of the propagation properties of density pulses through an ion‐beam plasma system are presented. Both stable and unstable situations are investigated. The calculations are based on the linearized Vlasov equation, which is solved as an initial value problem. Solutions are presented both for pure velocity modulation and for pure density modulation of the beam. The propagation properties are found to be strongly dependent on the modulation form. In the case of velocity modulation the perturbation grows even under stable conditions, while in the case of density modulation only an instability causes growth.
    Original languageEnglish
    JournalPhysics of Fluids
    Volume19
    Issue number7
    Pages (from-to)1021-1025
    ISSN1070-6631
    DOIs
    Publication statusPublished - 1976

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