Single-shot spontaneous Raman scattering for time-resolved one-dimensional hypersonic flow diagnostics

J Bak, BS Leonov, RB Miles - Optica, 2025 - opg.optica.org
Spontaneous Raman scattering, also known as common old ordinary Raman scattering
(COORS), is revisited to evaluate its applicability for hypersonic flow characterization. Due to …

[HTML][HTML] Spatially resolved Thomson scattering measurements of electron properties across the acceleration region of a high-power magnetically shielded Hall effect …

J Lopez-Uricoechea, JL Suazo Betancourt… - Journal of Applied …, 2024 - pubs.aip.org
Noninvasive measurements of electron properties in a Hall effect thruster (HET) are needed
to understand the physical processes in the acceleration region and to validate simulations …

[HTML][HTML] Laser Thomson scattering measurements indicate non-isothermal magnetic field lines in magnetically shielded Hall effect thrusters

JLS Betancourt, N Butler-Craig… - Physics of …, 2024 - pubs.aip.org
Expected high electron mobility and low resistivity along magnetic field lines—as compared
to across magnetic field lines—have led to the assumption, or the reproduction through a …

[HTML][HTML] Bayesian-inverted laser Thomson scattering measurements indicate electrostatic erosion pathways in magnetically-shielded Hall effect thrusters

JL Suazo Betancourt, J Lopez-Uricoechea… - Journal of Applied …, 2024 - pubs.aip.org
Magnetically shielded Hall effect thrusters suffer from pole erosion as their life-limiting
mechanism. However, the dominant physical mechanism causing this erosion remains …

[PDF][PDF] Empirical closures for momentum and energy transport in hall thrusters based on Thomson scattering measurements

PJ Roberts, MG Allen, DG Brick… - 38th International …, 2024 - januselectricpropulsion.com
The Hall thruster is a pivotal propulsion technology for efficiently maneuvering in both Earth
orbit and deep space, which stems from its ability to provide high thrust and specific impulse …

Single-shot common old ordinary Raman scattering for time-resolved one-dimensional hypersonic flow diagnostics

J Bak, B Leonov, R Miles - 2024 - preprints.opticaopen.org
Common old ordinary Raman scattering (COORS) is revisited to evaluate its applicability for
hypersonic flow characterization. Due to its very low cross-section, Raman scattering is often …

Laser Thomson Scattering Measurements in Low Density Pulsed Argon Plasma

VP Blanchard, JA Qureshi, N Yamamoto… - AIAA SCITECH 2025 …, 2025 - arc.aiaa.org
This paper presents temporally-resolved electron number density and temperature in a
custom glow discharge in Argon at 1.2 Torr to study the feasibility of detecting low electron …

Comparison of the Near-Field Electron Properties of the H9 Hall Effect Thruster in Various Electrical Configurations With Incoherent Laser Thomson Scattering

NI Butler-Craig, JL Suazo Betancourt… - AIAA SCITECH 2025 …, 2025 - arc.aiaa.org
Due to the lack of physics-based predictive modeling of HET operation, ground-based
facility effects on thruster operation make it difficult to predict the on-orbit performance. The …