Computer modeling of pulsing discharges in dielectric cell with dust particles

Computer modelling of the pulsing discharge with dust particles between two plane electrodes was performed by the finite difference method using the two-fluid model for electrons and ions. The Townsend electron ionization, surface adsorption of electrons and ions, electron heat conductivity, and electron-ion and photoelectron emission from the cathode were taken into account. The results of simulation show that the dust particles affect substantially the external and internal parameters of the discharge. The collection of electrons and ions and the creation of non-uniform charges at the dust particles lead among others to a smoothing of electric fields in the discharge gap, and to a decrease of the current impulse maximum. (J.U.)