Electric thrusters are finding increasing usage worldwide in spacecraft applications.
Significant progress has been made in recent years in the modeling and performance of …

There are a number of pressing problems mankind is facing today that could, at least in part,
be resolved by space systems. These include capabilities for fast and far-reaching …

This paper provides perspectives on recent progress in understanding the physics of
devices in which the external magnetic field is applied perpendicular to the discharge …

For several decades, Hall-effect thrusters (HETs) are being used in several applications,
such as orbiting satellites, deep space missions, etc. This article studies the effect of several …

The presence of instabilities in a low density, low temperature plasma expanding through an
axially symmetric magnetic nozzle is investigated in the context of non-classical electron …

NASA continues to develop higher power ion and Hall thrusters for deep space human and
robotic missions that require higher thrust and specific impulse than available in current …

Turbulence in hollow cathodes used for space propulsion is believed to play an important
role in anomalous electron transport and ion heating. In this work, the implementation of …

An experimental investigation is presented into the wave-driven electron transport in the
near-field plume of a hollow cathode operating in a 300 V, 4.5 kW magnetically shielded …

The characterization of an electric propulsion device cathode is performed in the so-called
diode configuration with an external anode. The anode acts as a physical boundary for the …

Electrostatic probes are employed to measure the time-variations in electron collision
frequency due to a large-scale, low-frequency, plasma instability in a high-current hollow …