Prysyazhnevych I. Physical peculiarities of plasma of the dynamic gas discharge systems.

Plasma parameters of dynamic gas-discharge systems such as: electroarc discharge in the transverse gas flow of atmospheric pressure (transverse arc); discharge in gas channel with water wall; secondary discharge in the plasma-liquid system at pressure about saturated water vapor's pressure, ? were investigated by optical emission spectroscopy methods. A new approach for processing of emission plasma spectra of multicomponent compound (mixture of molecular gases and vapor of metals) was developed. Adaptation of existing optical emission spectroscopic techniques for determining excitation temperatures of atoms and molecules in generated plasmas was made. Plasma parameters of the transverse arc in air and argon flows were determined and its distributions for different regimes of the discharge were studied. The influence of the gas flow rates on the non-thermal level of plasma was investigated. Plasma parameters of the discharge in the gas channel with water wall were investigated for different regimes of the discharge: between two solid (copper) electrodes; between one solid and one "liquid" electrode of different polarities.