毛细管放电等离子体特性及应用研究

Capillary plasma as a new kind of plasma discharge was introduced .in recent years, which produced by pulse discharge in a capillary tube. Its unique physical characteristic such as high density(10２０cm－3) and high velocity (>10km/s) can be used for scientific research, industry and defense fields, so it was paid attention by scientist in the world. . Our group have undertaken the project of "research on the property of a capillary plasma arc and its applications" from National Natural Science Fundation of China in the past three years. We summarized the research status and applications of capillary plasma at home and abroad. Capillary plasma was investigated in detail theoretically and explored in applications. To aim at the technical problem existing in the generator of capillary plasma, we propose and design a capillary plasma generator with a new configuration. It has several advantages over the conventional one as follows.1.repetitive ischarge 2..elimination of high power switch in power supply 3..ability of discharge under lower charging voltage of power supply 4.compact plasma generator system This capillary plasma generator is a breakthrough compared with the conventional capillary, which is worthwhile putting into use in scientific research, industry and defense. Our work presented at 13th IEEE Pulsed Power Conference(June26-30,2002, UAS) and 11th Electromagnetic Launch Symposium(May 14-17, 2002, France).. We did the experiments and research on discharge property, configuration optimization and waveform regulation and got valuable results. All these will play an important role in the future applications of capillary plasma..

毛细管脉冲放电等离子体是近年来国外发展起来的一种新型脉冲等离子体源。它通过毛细管脉冲放电产生高温高速等离子体射流，以极高的速度推进和发射物体，在科研工业和军事领域已显示出很好的应用前景。研究内容包括：建立毛细管等离子体模型，描述其物理特性；进行毛细管脉冲放电特性研究；进行材料表面处理，新型毛细管等离子体开关等项应用研究。