We report on our experimental studies of the ion charge state distribution ~CSD! of vacuum arc plasmas using a time-of-flight diagnostic method. The dependence of the CSD on the axial distance from the plasma source region was measured for a titanium vacuum arc. It was found that the axial CSD profile is nonuniform. Generally, the mean charge state increases approximately linearly with axial di...

A high-efficiency and high-power atmospheric pressure plasma torch has been operated in air and nitrogen by modularly combining two 2.54 GHz microwave plasma sources. Each modular plasma device uses a shorted waveguide within which the plasma is sustained. They are arranged in series so the second torch adds all its power to the output of the first torch to produce one high power flame. Total m...

The article discusses selected structural and operational properties of DC AC arc plasma torches. References cited in the contain generalised analytical expressions identifying experimental current-voltage characteristics typical Values coefficients formulas approximating static depend not only on type polarity torch but also values criterial factors. study separately torches single-phase