Characteristics of a glow discharge in atmospheric pressure air over the water surface

Characteristics of Bipolar Nanosecond Discharges in Air Formed in the Electrode System “BLADE-SURFACE of Nonmetallic Liquid -BLADE”

“…In the first case, the discharge consisted of a fairly uniform set of streamer channels, which were observed against a weak background of a diffuse surface discharge. The nanosecond discharge in air of atmospheric pressure in the system of electrodes "blades -surface of distilled water" had a similar appearance [15]. The brightness of the plasma glow slightly decreased in the direction from the tip of the steel blade to the center of the discharge gap, which is probably due to this distribution of the specific electric field strength of the bipolar discharge.…”

“…The use of steel blades in the system for obtaining a high-current nanosecond discharge in air at atmospheric pressure when the discharge in the form of 12 plasma sheets was closed to the surface of distilled water or electrolytes was described in [15][16]. But in this case, the ratio of the area of the overlapped plasma to the total area of the electrode based on the system of steel blades did not exceed 0.3-0.4.…”

Variation of Temperatures of Discharge with a Liquid Electrode on the Basis of Distilled Water near the Ignition Threshold Mode

“…The burning of the discharge requires the constant formation of charged particles in the most highenergetic cathode layer, and the growth of the current leads to an increase in their amount, increasing the effect on the surface of water. Thus, molecules with small ionization energies that appear in plasma at current growth will supplant nitrogen molecules from high-energy layers of the plasma [19]. Near the electrode, the brightness of the plasma of the discharge correlates with the electrical characteristics [20].…”

“…Along with the increase in volume and the change in the shape of the plasma, the electronic temperature drops. This correlates with the decrease of the cathode voltage drop and the growth of the plasma volume [19]. Vibrational temperature shows that up to current of 25 mA the hydroxyl is situated in the most energetic plasma layer and the distribution of intensity indicates the gradual dominance of its radiation in the whole plasma [23].…”