Related Experiment Video
Updated: May 5, 2026
10:40
High Resolution Phonon-assisted Quasi-resonance Fluorescence Spectroscopy
Published on: June 28, 2016
7.0K
Numerical means for phase-resolved laser-induced fluorescence spectroscopy for dynamic studies in plasmas
Y Dancheva1, F Scortecci1, M Da Valle2
1Aerospazio Tecnologie s.r.l., Rapolano Terme, SI, Italy.
The Review of Scientific Instruments
|May 4, 2026
Summary
This study introduces a new method for analyzing plasma in electric thrusters. It uses phase-resolved laser-induced fluorescence to measure ion velocities and neutral properties during oscillations, improving thruster performance characterization.
Area of Science:
- Plasma physics
- Electric propulsion systems
- Spacecraft propulsion technology
Background:
- Electric propulsion systems need thorough ground testing for performance validation.
- Ion velocity distribution is crucial for thruster thrust and efficiency.
- Laser-induced fluorescence (LIF) is a common non-intrusive diagnostic for ion velocity measurement via Doppler shift.
Purpose of the Study:
- To apply numerical post-processing for phase-resolved LIF spectroscopy.
- To enable spatiotemporal detection of ion velocities and neutral kinetic properties.
- To analyze Hall thrusters operating under strong breathing oscillations.
Main Methods:
- Phase-resolved laser-induced fluorescence spectroscopy.
- Numerical post-processing of diagnostic data.
- Spatiotemporal detection of plasma properties in a Hall thruster.
Main Results:
- Successfully measured spatiotemporal ion velocities and neutral kinetic properties.
- Characterized plasma behavior in a Hall thruster with strong breathing oscillations.
- Demonstrated the technique's utility for multi-parameter system characterization.
Conclusions:
- Phase-resolved LIF spectroscopy is effective for detailed plasma analysis in oscillating thrusters.
- The technique enhances understanding of ion velocity distribution effects on performance.
- Applicable to broader studies of coupled, oscillating plasma systems.
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