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Numerical simulation of a high-perveance ion-extraction system with a plasma emitter |
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| Authors: | V. K. Abgaryan R. V. Akhmetzhanov H. W. Loeb V. A. Obukhov M. V. Cherkasova |
| Affiliation: | 1. Moscow Aviation Institute, National Research University, Moscow, Russia 2. Justus Liebig University, Giessen, Germany 3. Research Institute of Applied Mechanics and Electrodynamics of the Moscow Aviation Institute, Moscow, Russia |
| Abstract: | The cell of a multiaperture three-electrode ion-extraction system (IES) with a plasma ion emitter is numerically simulated within the range of ion current density and accelerating potentials corresponding to gas-discharge ion sources used in technological and space applications (ion thrusters). The formation of the primary ion beam and the configuration of the secondary (charge-exchange) ion flux impinging on the IES electrodes from both the beam volume and the beam-transport (neutralization) region are investigated for different IES geometries. The erosion of the accelerating electrode is estimated. |
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