Laser-induced fluorescence measurements of singly-charged xenon ion velocities in Hall
thrusters typically target metastable states due to lack of available laser technology for …

Collisional-radiative (CR) models for neutral and singly ionized xenon have been
constructed for applications to Hall thruster diagnostics. The models use primarily theoretical …

This thesis is dedicated to the development of several diagnostics for the characterization of
electric propulsion devices in general and of RF and helicon plasma thrusters in particular …

This study presents a proof-of-principle for using optical emission spectroscopy and artificial
neural networks for real-time monitoring and control of the operational parameters of a Hall …

This study uses concurrent spectroscopic measurements that provide evidence of the
predator–prey behavior between ions, neutral atoms, and electrons that is theorized to drive …

1 𝜏𝑞𝑝= Optical depth associated with the radiative transition form level q to level p 𝐼𝑝𝑞=
Intensity of the emission line from the level p to the level q KCD= Karabadhzack Chiu and …

Time-dependent behavior of electrons can be critically important to Hall thruster discharge
behavior. Fast Optical Emission Spectroscopy (FastOES) is a non-invasive diagnostic …

This thesis provides an analysis of the optical emission of Hall Effect thrusters. The study is
grounded in the context of the dynamic field of micro reusable launchers and ride-share …

In this paper, the ion population distribution of oxygen impurity species at intermediate
densities ($10^{16}~\text {cm}^{-3}~<~\text {n} _\text {e}~<~ 10^{20}~\text {cm}^{-3} $, where …