Effect of dust on tilted electrostatic resistive instability in a Hall thruster

Authors

• Jasvendra Tyagi
• Sukhmander Singh ¹
• Hitendra K. Malik * ²

1. Plasma waves and electric propulsion laboratory, Department of Physics Central University of Rajasthan, Ajmer, Rajasthan-305817, India
2. Plasma Science and Technology Laboratory, Department of Physics, Indian Institute of Technology Delhi, New Delhi 110016, India

Abstract

AbstractEffect of negatively charged dust on resistive instability corresponding to the electrostatic wave is investigated in a Hall thruster plasma when this purely azimuthal wave is tilted and strong axial component of wave vector is developed. Analytical calculations are done to obtain the relevant dispersion equation, which is solved numerically to investigate the growth rate of the instability. The magnitude of the growth rate in the plasma having dust particles is found to be much smaller than the case of pure plasma. However, the instability grows faster for the increasing dust density and the higher charge on the dust particles. The higher magnetic field is also found to support the instability.

Keywords

• Growth rate
• Hall thruster
• Negatively charged dust
• Tilted resistive instability