Bochum 2015 – wissenschaftliches Programm

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P: Fachverband Plasmaphysik

P 14: Poster Session - Theory and Modelling

P 14.1: Poster

Dienstag, 3. März 2015, 16:30–18:30, Foyer Audimax

PIC/MCC simulation of a helium benchmark discharge plasma — •Anbang Sun, Markus M. Becker, Sergey Gorchakov, and Detlef Loffhagen — INP Greifswald, Felix-Hausdorff-Str. 2, 17489 Greifswald

A particle-in-cell/Monte Carlo collision (PIC/MCC) model developed to simulate streamers and the inception of pulsed discharges [1] has been extended to allow for the analysis of technological low-temperature plasmas. Therefore, the movement and collisions of ions have been included in the PIC/MCC code which uses adaptive particle management for the super-particles. As a frist step, simulations related to a spatially one-dimensional capacitively coupled discharge in helium have been performed. The comparison with the benchmark results presented in [2] shows generally good agreement. Aspects substantial for the comparison like the treatment of the collision processes of ions are discussed. In addition, the impact of the movement of ions and different boundary conditions as e.g. partial electron and ion reflection or secondary electron emission are represented.

The work has been partly supported by the European Union’s 7th Framework Programme for research, technological development and demonstration under grant agreement no. 316216 and the German Research Foundation (DFG) within SFB TRR 24. The authors thank A. Derzsi, Z. Donkó and M. Turner very much for their kind assistance in benchmarking the code.

[1] A. Sun et al., J. Phys. D: Appl. Phys. 47 (2014) 445205

[2] M. M. Turner et al., Phys. Plasmas 20 (2013) 013507