Tomographic Analysis of a Plasmoid in Supersonic MW Post-Discharge

POSTER

Abstract

The tomographic analysis was used for reconstruction of local plasma parameters of a plasmoid in the post-discharge region of an Ar supersonic MW discharge. The supersonic flow was generated using a convergent-divergent nozzle upstream of the discharge region [1]. A cylindrical cavity was used to sustain a discharge in the pressure range of 100-600 Pa. Evidence of plasma rotation was observed. We defined the numerical method based on the inversion of the Abel integral equation for a cylindrical cavity. Optical emission spectroscopy measurements were taken under two mutually perpendicular directions for evaluation of the spatial distribution of the excited species in the plasmoid region.\\[4pt] [1] Drake, D. J., S. Popovic, and L. Vu\v{s}kovic, J. Appl. Phys. \textbf{104}, 063305 (7pp) (2008).

Authors

  • Milka Nikolic

    • Old Dominion University

  • Ana Samolov

    • Old Dominion University, Norfolk VA
    • Old Dominion University

  • Svetozar Popovic

    • Old Dominion University

  • Alex Godunov

    • Old Dominion University

  • Leposava Vu\v{s}kovic

    • Old Dominion University