A5073780313- Electrohydrodynamics and Fluid Dynamics
- Plasma Diagnostics and Applications
- Currency Recognition and Detection
- Plasma Applications and Diagnostics
- Advanced Data Storage Technologies
- Chaos control and synchronization
- Chaos-based Image/Signal Encryption
- Mass Spectrometry Techniques and Applications
- Magnetic confinement fusion research
Institute of Plasma Physics and Laser Microfusion
2022-2024
University of Zielona Góra
2022
Abstract The exhaust plume of a 1 J ablative pulsed plasma thruster (APPT) fed with non-volatile liquid propellant (perfluoropolyether – PFPE) was studied experimentally electric probes. Faraday cup (FC) and retarding potential analyzer (RPA) were used time flight approach to determine shape ion content the plume, including energy velocity distributions individual species. It found that composed mainly fluorine ions, charge-states up 6+. Other constituents PFPE (carbon oxygen) detected in...
The plasma plume of a 1 J pulsed thruster fed with polytetrafluoroethylene (PTFE) was studied electric probes to obtain the shape and composition beam ejected ions. Two ion diagnostic tools—Faraday cup (FC) retarding potential analyzer (RPA), were employed together time-of-flight approach. FC used spatially time-resolved data mean charge expelled from in each pulse. With RPA examined for presence specific species. results this investigation indicated both elements PTFE beam—fluorine carbon...
This work concerns the experimental study of plasma emitted by a Hall effect thruster in context chaotic behavior. Its aim was to check whether low-dimensional deterministic chaos could explain fluctuations observed current waveforms: discharge and ion measured planar probe with guarding ring. The voltage used as control parameter, dependence efficiency on this parameter studied. Several standard diagnosis tools, such presence attractors non-integral dimensions, specific shape Poincaré cross...
Abstract The unusual graphic representation of time series based on Symmetrized Dot Pattern (SDP) helps capturing subtle dynamics in the analyzed signals, otherwise difficult to identify when applying traditional techniques. SDP is creating features and forming a global percept easily readable recognizable for human observer. Thanks this method, local correlations signals any sampled data can be visualized. This work describes application measurements tokamak plasma radiation, namely soft...
Abstract The dynamics of the ion flux expelled by a 0 .5 kW -class Hall thruster supplied with krypton was examined in wide range discharge voltages. A homemade Faraday probe installed onto rotary arm used for reconstructing angular profiles plasma plume 0.5 m downstream exit plane. time dependence current measured along axis. For investigating signal dynamics, Fourier approach as well methods nonlinear series analysis like bifurcation diagrams and recurrence plot techniques were applied,...