Electron density measurement of dc positive arc propagating over an ice surface based on Ha line

Azam Nekahi, Masoud Farzaneh

    Research output: Contribution to journalArticle

    Abstract

    Results of spectroscopic investigation of an arc formed over an ice surface are presented. Direct-current positive voltage is applied to a flat ice surface with a 6-cm air gap to initiate electric discharge. Time-resolved spectra are taken during
    the propagation of arc along the surface. From the emission spectra, the profile of hydrogen-alpha from Blamer series is used to measure the electron density of the arc column. A method based on broadening of the Ha line considering instrumentation broadening is employed.
    Original languageEnglish
    Pages (from-to)1120-1124
    Number of pages5
    JournalIEEE Transactions on Plasma Science
    Volume39
    Issue number4
    DOIs
    Publication statusPublished - Apr 2011

    Keywords

    • arc
    • ice surface
    • positive voltage

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