The Dynamics of the Electric Field Distribution in the Surface of Insulating Film Irradiated by Air Ions

  • Julionas KALADE Vilnius University
  • Ringaudas RINKUNAS Vilnius University
  • Romaldas PURLYS Vilnius University
  • Pranas JUOZAS ZILINSKAS Vilnius University
  • Tadeus LOZOVSKI Vilnius University, University of Bialystok
  • Andrius POSKUS Vilnius University
Keywords: corona discharge, sheet resistance, ion mobility, conductivity


When deposited on a surface, electric charge usually accumulates near the tips of surface irregularities, from where it can be transferred to nearby objects due to ionization of ambient air. The amount of transferred charge, the rate of charge transfer, the size of the charged spot (e.g., on the surface of an insulator) and its tendency to spread will depend on properties of air during electric discharge, on the magnitude of charge accumulated at the tip of an object, on possibilities for replenishing that charge, on the time spent for charge transfer from the tip onto the insulating layer, on properties of the insulating layer, etc. Those properties are discussed in this work by comparing the results of measurements and theoretical analysis.

Author Biographies

Julionas KALADE, Vilnius University
Ringaudas RINKUNAS, Vilnius University
Romaldas PURLYS, Vilnius University
Pranas JUOZAS ZILINSKAS, Vilnius University
Tadeus LOZOVSKI, Vilnius University, University of Bialystok
Andrius POSKUS, Vilnius University