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Simulation of Microhollow Cathode Discharge With Planar and Hollow Anodes

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4 Author(s)
Xueling Zhang ; Wuhan Nat. Lab. for Optoelectron., Huazhong Univ. of Sci. & Technol., Wuhan, China ; Xinbing Wang ; Fujun Liu ; Yanzhao Lu

The 3-D fluid models of microhollow cathode discharge (MHCD) with both planar- and hollow-anode structures are presented. In the planar-anode structure, the highest densities are ~1018 and ~1019 m-3 for electron and ion, respectively, and the electron mean energy is in tens of electronvolts. In the hollow-anode structure, densities and electron mean energy are higher than in planar one, which indicates that this structure is more attractive than the planar one. The influences of pressure on the MHCD have also been discussed.

Published in:

IEEE Transactions on Plasma Science  (Volume:37 ,  Issue: 10 )