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Surface flashover phenomena in vacuum across dielectrics usually happen in many pulsed power devices, high power microwave (HPM) equipment and particle accelerators. Secondary electron emission avalanche (SEEA) model is generally accepted to analyze this phenomena. During the evolution of flashover development, the process of electrons desorption stimulated (ESD) gases plays a dominant role and then...
Microwave breakdown phenomenon across dielectric window at the vacuum/dielectric interface limits the transmission of HPM and becomes a bottleneck of HPM technology development. Its avoidance or suppression is a major concern among researchers on HPM sources. Currently, the most effective approach is geometrical modification with the goal of altering the trajectories of electrons. In this paper, periodic...
Researching the effects on different temperature of dc surface flashover characteristics on solid insulating dielectric in vacuum what can improve the reliability applied to complex environments. In this paper, we use the self-made polyimide (PI) sample as the object of study. The dc surface flashover characteristics at different temperatures (193–353K) are experimental studied, with theoretical analysis...
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