The physics of electrodeless electric thrusters that use directed plasma to propel spacecraft
without employing electrodes subject to plasma erosion is reviewed. Electrodeless plasma …

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 …

Magnetic shielding of Hall thrusters has been shown to reduce erosion of the channel walls
by at least a few orders of magnitude, thereby enabling the use of these devices in deep …

HE era of Solar Electric Propulsion (SEP) enabled deep-space missions has advanced
further with the recent completion of NASA's Dawn mission. Dawn's three, 2.3 kW NSTAR …

The scaling of magnetically shielded Hall thrusters to low power is investigated through the
development and fabrication of a 4-cm Hall thruster. During initial testing, the magnetically …

We describe the effects of finite pressure in a large vacuum facility on a magnetically
shielded Hall thruster using internally and externally mounted cathodes. A numerical model …

A type of Hall thruster without wall losses is designed by adding two permanent magnet
rings in the magnetic circuit. The maximum strength of the magnetic field is set outside the …

This dissertation presents an investigation of the applicability of magnetic shielding to low-
power Hall thrusters as a means to significantly improve operational lifetime. The key life …

The Hall thruster component of the Ascendant Sub-Kilowatt Transcelestial Electric
Propulsion System (known ASTRAEUS) successfully demonstrated a propellant throughput …

HYPHEN is a new two-dimensional axisymmetric hybrid, particle-in-cell (PIC)/fluid multi-
thruster simulation platform under development. This work presents the last modeling …