Optical Single Collecting of Needle-plate DC Discharge in Air Gap.

In order to know the breakdown theory of gas discharge and collect the optical single of needle - plate DC stream discharge in short air gap' we designed this experiment. Use optical fiber' spectrometer and ICCD to compose the optical single collecting system' the ICCD alone can capture the optical phenomenon and it can get the spectrum with the help of spectrometer. The controller of this system adopts outer trigger mode with highspeed trigger pulse to get the images. The experiment analyzes the physical process of the phenomenon in the end. [ABSTRACT FROM AUTHOR]