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An instability in the stable operation of microdischarges sustained at microwave frequencies, is investigated by a self-consistent one-dimensional particle-in-cell Monte Carlo collisions model. The instability is caused by the field electron emission from electrodes and is triggered by the high electric fields at the sheaths in a dense microplasma. For an operating frequency of 9 GHz, and electrode...
Recently, a two-dimensional (2D) self-consistent particle-in-cell Monte Carlo collision (PIC MCC) simulation code has been developed1 to study operation of heaterless thermionic hollow cathode (HTHC) proposed to use in microsatellite propulsion systems. Unique design of the cathode and attractive performance characteristics were reported in Ref. 2. This study has been carried out as a part of continued...
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