Study on the influence of magnetic field on the performance of a 5 kW hall thruster

Hall thruster is a kind of plasma optics device, which used mainly in space propulsion. To study the influence magnetic field on performance 5 kW hall thruster, two-dimensional PIC-MCC model was built. The Bohm diffusion modeled by using Brownian motion instead collision method and near-wall conduction secondary electron emission model. When mass flow rate mg/s, like thrust, efficiency discharge current simulated under voltage from 300 to 1,000 voltage. At first, constant simulated. results showed that could not restrain electrons as increased. Later, varied increasing strength with more efficiently, proved necessary for high specific impulse operation thruster. last, measurement experiment carried out, experimental verified accuracy simulation results.