Measurement of a Threshold Initiation Carrier Density for a Reduction in Gas Breakdown Voltage

  • Park, Hyunho (School of Electrical and Electronic Engineering, Hong-ik University) ;
  • Kim, Youngmin (School of Electrical and Electronic Engineering, Hong-ik University)
  • Received : 2018.03.08
  • Accepted : 2018.05.10
  • Published : 2018.11.01


A direct measurement of an initiation carrier injection for a low voltage discharge is presented. A self-sustained pulsed discharge is utilized to characterize electrical responses of a glow discharge for varying amounts of injected initiation carriers. It is clearly demonstrated that the initiation carrier injection affects the ignition time and the breakdown voltage of the primary discharge. An abrupt reduction in the breakdown voltage for a $300{\mu}m$ gap pin-plate discharge is observed when a threshold carrier density of $3{\times}10^{11}cm^{-3}$ is injected and the breakdown voltage continues to decrease to 250 V with increasing the initiation carrier injection beyond the threshold density.


Supported by : National Research Foundation of Korea(NRF)


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