Microwave diagnostic complex for cold atmospheric plasma jets (ФизикА.СПб)

Abstract

A system for microwave diagnostics of low-temperature non-stationary atmospheric plasma jets is proposed. The time dependences of the average volumetric conductivity of a plasma jet of a barrier discharge in a helium flow are measured. The discharge was powered from an alternating voltage source with a frequency of 9 kHz. Such a low frequency of the supply voltage made it possible to distinguish individual pulses of breakdowns of the barrier discharge.