In complex plasmas, dust particles are charged through their interactions with the electrons and ions of surrounding plasma. low-temperature laboratory most commonly acquire a negative charge. particular, in glow-discharge plasma, typical charge for micrometer-size grain generally attains few thousands electronic charges. Under stable discharge conditions, this large is relatively well-characte...

The role of gas flow and transport mechanisms are studied for a small low-power impinging jet of weakly-ionized helium at atmospheric pressure. This plasma needle produces a non-thermal glow discharge plasma that kills bacteria. A culture of Streptococcus mutans (S. mutans) was plated onto the surface of agar, and spots on this surface were then treated with plasma. Afterwards, the sample was i...

A two-dimensional self-consistent fluid model was employed to investigate the spatiotemporal nonlinear behavior in an argon glow-like/Townsend-like dielectric-barrier discharge (DBD) at atmospheric pressure. The discharge is characterized by a major current pulse with a residual one ahead per half cycle of the external voltage. The two current pulses are operated in glow mode, but with Townsend...

An ionization source designed to efficiently utilize sub-milligram quantities of electrically non-conducting compounds (i.e. oxides) for prolonged periods of mass spectrometric analysis is described. The source is coupled to a quadrupole ion trap mass spectrometer in this report, but could readily be modified for alternative types of mass spectrometers. The coaxial-design glow discharge ion sou...

In this paper optical space and time resolved measurements on the later development of Kanal (streamer) and Townsend discharges in nitrogen are treated. In both discharges fast luminous fronts (the so called ionizing waves) arise: in the streamer discharge between the primary streamer stage and the spark stage, and in the Townsend discharge during the transition to the glow. For the streamer di...

The solution-cathode glow discharge (SCGD) is a low-power, atmospheric-pressure, ambient-atmosphere microplasma that proving to be proficient excitation source for atomic emission spectroscopy (AES). analytical figures of merit SCGD-AES experiments often compete with established, conventional approaches despite the fact it simple, small, low-cost instrument. operating principles SCGD are review...

An experimental study of a plasma plume generated by radio frequency atmospheric pressure glow discharge and enhanced in terms length intensity pulsed is presented. When injecting bullet into the plume, ambient air can be elongated from 2 mm to 6 elevated four times. The propagation interaction with are demonstrated temporal evolution spatial appearance. employed improve O/C ratio carbon fiber,...