Oscillatory Properties of Subnormal Glow Discharge in Longitudinal Magnetic Field in Air

Abstract

The oscillatory properties of subnormal glow discharge have been studied by Jana and Pradhan in longitudinal magnetic field for inert gas argon [4]. The aim of this paper is to investigate the validity of the variation of these oscillatory properties studied in longitudinal magnetic field in a mixture of gases, air. The oscillograms of current-pulses have been presented. The variation of frequency, bandwidth, peak-peak voltage and rise-time have been studied and it is found that the frequency, bandwidth, rise-time and cut-off current increase but peak-peak voltage decrease with the increase in magnetic field. The power spectrum of ionization fluctuation is also studied. It increases with the increases in magnetic field. This investigation shows the exact validity in the result of the variation of oscillatory properties in air with that in argon.