Title :
Numerical study of the electron dynamics in radio-frequency plasmas at atmospheric pressure
Author :
Hemke, T. ; Gebhardt, M. ; Wollny, A. ; Brinkmann, R.P. ; Mussenbrock, T.
Author_Institution :
Ruhr Univ. Bochum, Bochum, Germany
Abstract :
Summary form only given. The dynamics of electrons plays an important role for the behavior of radio-frequency driven discharges, particularly at high pressures. The electron dynamics itself is highly driven by the dynamics of the plasma boundary sheath. In this work we study a radio-frequency driven atmospheric pressure plasma jet which is frequently employed as an efficient plasma sources for surface modification. We concentrate on secondary electron effects and excitation mechanisms in Helium/Oxygen mixtures by means of self-consistent plasma simulations.
Keywords :
gas mixtures; helium; high-frequency discharges; numerical analysis; oxygen; plasma boundary layers; plasma jets; plasma pressure; plasma sheaths; plasma simulation; plasma sources; He-O2; electron dynamics; excitation mechanism; high-pressure effect; numerical analysis; plasma boundary sheath; plasma sources; radio-frequency driven atmospheric pressure plasma jet; radio-frequency driven discharges; secondary electron effects; self-consistent plasma simulation;
Conference_Titel :
Plasma Science (ICOPS), 2011 Abstracts IEEE International Conference on
Conference_Location :
Chicago, IL
Print_ISBN :
978-1-61284-330-8
Electronic_ISBN :
0730-9244
DOI :
10.1109/PLASMA.2011.5993322