Investigation of Peculiarities of the Discharge Excitation with Hollow Cathode Effect in N2 in a Tube Electrode

<p>The influence of some constructive discharge system elements on the electric excitation modes and stable maintaining of pulse glow discharge plasma in N₂ in a hollow tube cathode has been investigated. The following discharge system changes have been performed: the position of a hollow electrode-cathode in the dielectric tube-holder; the method of plasma forming gas feeding to the discharge area; the distance between the electrode-cathode and counter-electrode (grounded anode). The investigation has been carried out within 50–700 Pa N₂ pressure range. The obtained results may be used in the design of gas discharge systems with hollow cathode effect.</p>

Investigation of Pulse Glow Discharge Excitation Modes in N2 in a Hollow Cylindrical Combined Cathode

Electric discharge excitation modes and N₂ pressure range for a stable formation and maintaining of pulse glow discharge plasma in a hollow combined cathode have been investigated. It has been found that both of these parameters are influenced by the constructive peculiarities of the cathode. It has been established experimentally that the value of N₂ breakdown voltage for the studied construction of the cathode within the range of 50-250 Pa does not exceed -700 V.