Kamada, Takaharu, Watanabe, Masayuki, Matsukawa, Naofumi, Ishikawa, Toshiaki, Itagaki, Minoru, Fujiwara, Tamiya, Ohkuma, Yasunori, Shiina, Shoichi, Saito, Katsunori, Watanabe, Masayuki, Iwate University, Faculty of Engineering, Nihon University, Institute of Quantum Science, Tokyo University of Agriculture and Technology (TUAT), and National Institute of Advanced Industrial Science and Technology (AIST)
12th International Congress on Plasma Physics, 25-29 October 2004, Nice (France); The PSD is a low-pressure gas discharge with an especially geometrical shape of a pair of parallel disk electrodes. In this paper, the pseudo-spark discharge (PSD) is applied to the source for a high current glow plasma jet. The mechanism of the plasma acceleration is an electromagnetic force. To accelerate the plasma, the diameter of the anode hole is enlarged as compared with that of the cathode. The electron temperature and density of the plasma jet is measured by using an electric probe technique. In this experiment of the discharge current is 10 kA in hydrogen gas, the temperature reached approximately 4eV. In addition, heat flux did not melt electrodes during a number of discharges, because PSD is glow mode. The geometrical shape of the electrodes plays an essential role in the characteristics of the PSD plasma jet. Thus, the high temperature and density plasma jet without the heat problem will become a useful tool for various technological applications.