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论文类型：期刊论文

发表时间：2011-01-01

发表刊物：15th International Symposium on Electromagnetic Launch (EML) Technology

收录刊物：SCIE、EI、CPCI-S

卷号：39

期号：1,SI

页面范围：360-363

ISSN号：0093-3813

关键字：Electron emission; heat conduction; initial plasmas; triggered vacuum switch (TVS)

摘要：A triggered vacuum switch (TVS) is an important component in pulsed power systems due to its quick switch, rapid dielectric recovery, small volume, convenient trigger system, simple structure, etc. A sample of field-breakdown TVS is fabricated, and its turning-on process is described in this paper. The initial plasmas play an important role in the process of TVS operation; its development includes two parts: 1) generation and 2) expansion. Based on the field breakdown principle, an electron emission model is chosen to describe the generation of initial plasmas. A heat conduction model is set up to deduce the expansion of initial plasmas. The model calculated result is accordant with the delay experiment.