Kinetic Description of the Impedance Probe

POSTER

Abstract

Active plasma resonance spectroscopy is a well known diagnostic method. Many concepts of this method are theoretically investigated and realized as a diagnostic tool, one of which is the impedance probe (IP). The application of such a probe in plasmas with pressures of a few Pa raises the question whether kinetic effects have to be taken into account or not. To address this question a kinetic model is necessary. A general kinetic model for an electrostatic concept of active plasma spectroscopy was presented by R.P. Brinkmann [1] and can be used to describe the multipole resonance probe (MRP) [2]. In principle the IP is interpretable as a special case of the MRP in lower order. Thus, we are able to describe the IP by the kinetic model of the MRP. Based on this model we derive a solution to investigate the influence of kinetic effects to the resonance behavior of the IP.\\[4pt] [1] R.P. Brinkmann, Bulletin of the APS {\bf 54} no. 12, BM 4 (2009)\\[0pt] [2] M. Lapke et al., Appl. Phys. Lett. {\bf 93}, 051502 (2008)

*The authors acknowledge the support by the Deutsche Forschungsgemeinschaft (DFG) via the Ruhr University Research School and the Federal Ministry of Education and Research in frame of the PluTO project.

Authors

  • Jens Oberrath

    • Ruhr-Universit\"at Bochum
    • Theoretical Electrical Engineering, Ruhr University Bochum
  • Martin Lapke

  • Thomas Mussenbrock

  • Ralf Peter Brinkmann