A. Smirnov, Y. Raitses, N. J. Fisch
This study investigates the control of plasma flow in the miniaturized cylindrical Hall thruster (CHT), focusing on the enhancement of electron emission from the hollow-cathode discharge. The objective of the research is to demonstrate that increased electron emission can lead to a substantial narrowing of the thruster's plume, thereby enhancing efficiency through ion-beam focusing. To achieve this, the CHT is operated in a non-self-sustained regime, with the discharge current controlled by the cathode's electron emission. Experimental observations reveal that this mode of operation significantly expands the accessible range of plasma and discharge parameters for the CHT. Analysis of plasma potential, electron temperature, and plasma density variations with cathode current indicates that the cathode discharge can influence electron cross-field transport within the CHT plasma. The findings highlight the potential for improving the performance of Hall thrusters in various applications.
@article{ae67b6d4-4278-4e4b-99e7-3c6b94d236ce,
title={Controlling the Plasma Flow in the Minia},
author={A. Smirnov and Y. Raitses and N. J. Fisch},
year={2026},
language={en}
}TY - JOUR TI - Controlling the Plasma Flow in the Minia AU - A. Smirnov AU - Y. Raitses AU - N. J. Fisch PY - 2026 LA - en ER -
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