Unequal areas of the powered and grounded electrodes in single-frequency capacitively
coupled plasmas (CCPs) are well-known to generate a DC self-bias voltage and an …

Electric space propulsion is an intensively developing field addressing new demands and
challenges for long-term spacecraft operation. Many novel plasma propulsion concepts aim …

In order to ensure the space charge compensation of the plume, conventional ion thrusters
need an additional neutralizer to release electrons. When a radio-frequency (RF) voltage is …

Accelerator grid hole shift is a critical reason for erosion failure of optic systems in ion
thrusters, which may also cause an unexpected roll torque about the ion beam axis. A three …

The PEGASES (Plasma Propulsion with Electronegative Gases) thruster is a gridded ion
thruster, where both positive and negative ions are accelerated to generate thrust. In this …

Electrons neutralizing the ion beam from a gridded ion source are typically provided by an
external cathode. This cathode emits a continuous current that ensures quasi-neutrality of …

We propose an alternative method to accelerate ions in classical gridded ion thrusters and
ion sources such that co-extracted electrons from the source may provide beam space …

The extraction and acceleration of ions from a plasma source is often performed
electrostatically using a set of direct-current (DC) biased grids. To ensure that equal currents …

Unusually long electrostatic solitary waves (ESWs) are discovered in a particle-in-cell
simulation study of the process of ion beam neutralization by electron emission from a …

This paper presents the development of a magnetized retarding field energy analyzer
(MRFEA) used for positive and negative ion analysis. The two-stage analyzer combines a …