Bremen 2017 – wissenschaftliches Programm

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P: Fachverband Plasmaphysik

P 1: Plasma Diagnostics I

P 1.4: Vortrag

Montag, 13. März 2017, 09:30–09:45, HS 2010

Kinetic Investigation of Ideal Multipole Resonance Probe — •Junbo Gong1, Sebastian Wilczek1, Jens Oberrath2, Denis Eremin1, Michael Friedrichs2, and Ralf Peter Brinkmann11Institute of Theoretical Electrical Engineering, Ruhr-University Bochum, Germany — 2Institute of Product and Process Innovation, Leuphana University Lüneburg, Germany

Active Plasma Resonance Spectroscopy (APRS) denotes a class of industry-compatible plasma diagnostic methods which utilize the natural ability of plasmas to resonate on or near the electron plasma frequency. One particular realization of APRS with a high degree of geometric and electric symmetry is Multipole Resonance Probe (MRP). The Ideal MRP (IMRP) is an even more symmetric idealization which is suited for theoretical investigations. In this work, a spectral kinetic scheme is presented to investigate the behavior of the IMRP in the low pressure regime. The scheme consists of two modules, the particles pusher and the field solver. However, due to the velocity difference, the electrons are treated as particles whereas the ions are only considered as stationary background. The particle pusher integrates the equations of motion for the studied particles. The Poisson solver determines the electric field at each particle position. The proposed method overcomes the limitation of the cold plasma model and covers kinetic effects like collisionless damping.

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