We present an improved numerical model for anode initiated electron avalanche breakdown of a dielectric-vacuum interface. An initiating event occurs in the high field region near the anode triple junction… Click to show full abstract
We present an improved numerical model for anode initiated electron avalanche breakdown of a dielectric-vacuum interface. An initiating event occurs in the high field region near the anode triple junction to start the first avalanche. The first avalanche grows and then stops, and a new one starts closer to the cathode. The breakdown process is modeled as a sequence of avalanches progressing from the anode to the cathode.
               
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