Double layer dynamics in a collisionless magnetoplasma

S. Iizuka, Poul Michelsen, Jens Juul Rasmussen, R. Schrittwieser, . Hatakeyama, K. Saeki, N. Sato

    Research output: Contribution to journalJournal articleResearchpeer-review

    Abstract

    Investigations of double layer dynamics are performed in a Q-machine plasma by applying a positive step potential to a cold end-plate collector. The double layer created at the grounded plasma source just after the pulse is applied propagates towards the collector with the plasma flow speed. Large oscillations occur in the plasma current which is related to a recurring formation and propagation of the double layer. The current is limited during the propagation by a growing negative potential dip formed on the low-potential tail. Similar phenomena appear on the low-potential tail of the stationary double layer formed by applying a potential difference between two plasma sources
    Original languageEnglish
    JournalJournal of the Physical Society of Japan
    Volume24
    Issue number7
    Pages (from-to)2516-2529
    ISSN0031-9015
    DOIs
    Publication statusPublished - 1985

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