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