To this purpose, magnetic field line that is tangent to the wall near the exit, known as “grazing line”, is required to penetrate deep into the channel and approaches the surface of the anode.

Evaluation of parameters of magnet system for modern Hall thrusters could be made by using methods of conform images. This works the better the less the ratio of acceleration gap to radius of acceleration ring is taken. Simple algebraic formulas make it possible to fulfill express analysis of various configuration of a discharge chamber.

• A NASA GRC and JPL team developed a 12.5-kW, magnetically-shielded Hall thruster, called Hall Effect Rocket with Magnetic Shielding (HERMeS) • In 2016 transitioned to commercial production under Aerojet Rocketdyne’s Advanced Electric Propulsion System (AEPS) • AEPS candidate to provide propulsion for the Power and Propulsion Element for NASA’s...

2023年12月20日 · In modern Hall thrusters, the magnetic field features a strong gradient along the axial direction of the thruster's discharge channel and a moderate gradient along the radial direction. 1,3 The field lines have a concave curvature in the axial–radial plane upstream of the axial location of the magnetic field peak intensity, which typically ...

Abstract: Hall Effect thrusters incorporate a magnetic circuit that must generate a specific electromagnetic flux distribution inside and near the outlet of the plasma channel. The first objective of the design process of this type of structure is to obtain a specific

The HERMeS thruster magnetic field topology optimization effort aims to strike a balance where the front pole cover erosion is reduced at the expense of increased discharge channel erosion topology.

2024年11月30日 · This study explores enhancing Hall thruster performance by optimizing magnetic field strength using superconductors. Conceptual methods were utilized, based on ideal assumptions about the thruster's behavior.

We describe an overview of the design process and acceptance testing of the magnetically shielded H9, a 9-kW class Hall thruster developed by the Jet Propulsion Laboratory in collaboration with the University of Michigan and the Air Force Research Laboratory.

2020年10月15日 · In cylindrical Hall thrusters, the magnetic field configuration plays a major role in electron conduction and ion acceleration. Improved discharge performance can be obtained by increasing the angle between the magnetic field line and the thruster axis (Li et al., 2019).

2024年4月1日 · The aft-loaded magnetic field technology of Hall thrusters moves the ionization and acceleration processes downstream of the channel by varying the magnetic field distribution. Consequently, ion bombardment of the channel walls is inhibited, and the service life of the Hall thrusters is substantially increased.