Potential Variation of Discharge Pulses in Air at Low Pressures

  • S. G. Pimpale
Keywords: Boundary layer, Electrode layer, Current ratio


A decrease and/or increase of the discharge current ratio (5i/50i), the ratio of the discharge current for 5 volts discriminator bias to that for 50 volts discriminator bias, under irradiation is studied in air filled ozonizers excited by a.c. potentials kV of 50 cycles. sec./sup 1/ frequency. Results are in accord with Joshi's theory which consider that external light emits photo-electrons from an adsorption like electrode layer formed with ions and molecules of the gas on the glass wall of the discharge tube. These photo-electrons are captured by excited atoms to form also moving negative ions and bearing about the decrease in 5i/sub L/sup 50i/sup L/ as a space charge effect. The positive effect,+ delta (5i/50i), is also explained by the electronic work function at the boundary layer.
How to Cite
Pimpale, S. (2014). Potential Variation of Discharge Pulses in Air at Low Pressures. Defence Science Journal, 22(4), 213-214. https://doi.org/10.14429/dsj.22.6409
Research Papers