Plume reduction in segmented electrode Hall thruster

Y. Raitses, L. A. Dorf, A. A. Litvak, N. J. Fisch
2000 Journal of Applied Physics  
A segmented electrode, which is placed at the thruster exit, is shown to affect thruster operation in several ways, whether the electrode produces low emission current or no emission current, although there appear to be advantages to the more emissive segmented electrode. Measured by plume divergence, the performance of Hall thruster operation, even with only one power supply, can approach or surpass that of nonsegmented operation over a range of parameter regimes. In particular, the low gas
more » ... lar, the low gas flow rate can exhibit low plume divergence. This allows flexibility in operation of segmented electrode thrusters in variable thrust regimes.
doi:10.1063/1.373813 fatcat:kdnscdxiirgtfmk7kdhsqyyu5y