The magnetic-field-induced transition from an expanding plasma to a double layer containing expanding plasma

C. Charles*, R. W. Boswell

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    58 Citations (Scopus)

    Abstract

    The magnetic-field-induced transition from a simple expansion to a double layer is experimentally investigated in an argon low pressure radio frequency helicon source plasma. When the magnetic field is increased from 30 to 140 G in the plasma source, an abrupt increase in the plasma density and upstream potential is measured at 50 G. In the downstream plasma, the plasma density and potential show a small decrease with increasing magnetic field and no abrupt change. When the upstream jump is measured, simultaneous measurements in the downstream plasma show an ion beam characteristic of a double layer near the source exit.

    Original languageEnglish
    Article number201505
    JournalApplied Physics Letters
    Volume91
    Issue number20
    DOIs
    Publication statusPublished - 2007

    Fingerprint

    Dive into the research topics of 'The magnetic-field-induced transition from an expanding plasma to a double layer containing expanding plasma'. Together they form a unique fingerprint.

    Cite this