The research on atmospheric pressure glow-like discharge plasma

Summary form only given. At present, we develop a plasma chamber to research into the decontamination of plasma at atmospheric pressure. The electrode system consists of the coaxial bar electrode and barrel electrode which is covered with a quartz tube. In order to increase the plasma amount, nine of these electrode systems are installed in parallel. We use a 10-30 kHz high voltage power to excite stable plasma. When plasma is generated, many short-lived and narrow streamers can be observed by a fast-camera. In this paper, we will generalize the regularity of this glow-like discharge at different power source frequency, and demonstrate the relationship among flashover voltage, source frequency and variety of working gas. At the same time, the photographs are provided. As at RF frequencies (>10 MHz), the working gas breaks down at only a few hundreds volts far away from that of the kHz frequencies, we also tend to analyze why kHz and MHz domain have different breakdown volts from microscopic views