The E × B drift instability in Hall thruster using 1D PIC/MCC simulation

The E × B drift instability is studied in Hall thruster using one-dimensional particle in cell (PIC) simulation method. By using the dispersion relation, it is found that unstable modes occur only in discrete bands in k space at cyclotron harmonics. The results indicate that the number of unstable m...

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Veröffentlicht in:Chinese physics B 2020-02, Vol.29 (2), p.25204
Hauptverfasser: Asadi, Zahra, Sharifian, Mehdi, Hashemzadeh, Mojtaba, Zarandi, Mahmood Borhani, Marzdashti, Hamidreza Ghomi
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container_start_page 25204
container_title Chinese physics B
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Sharifian, Mehdi
Hashemzadeh, Mojtaba
Zarandi, Mahmood Borhani
Marzdashti, Hamidreza Ghomi
description The E × B drift instability is studied in Hall thruster using one-dimensional particle in cell (PIC) simulation method. By using the dispersion relation, it is found that unstable modes occur only in discrete bands in k space at cyclotron harmonics. The results indicate that the number of unstable modes increases by increasing the external electric field and decreases by increasing the radial magnetic field. The ion mass does not affect the instability wavelength. Furthermore, the results confirm that there is an instability with short wavelength and high frequency. Finally, it is shown that the electron and ion distribution functions deviate from the initial state and eventually the instability is saturated by ion trapping in the azimuthal direction. Also for light mass ion, the frequency and phase velocity are very high that could lead to high electron mobility in the axial direction.
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Phys. B</addtitle><description>The E × B drift instability is studied in Hall thruster using one-dimensional particle in cell (PIC) simulation method. By using the dispersion relation, it is found that unstable modes occur only in discrete bands in k space at cyclotron harmonics. The results indicate that the number of unstable modes increases by increasing the external electric field and decreases by increasing the radial magnetic field. The ion mass does not affect the instability wavelength. Furthermore, the results confirm that there is an instability with short wavelength and high frequency. Finally, it is shown that the electron and ion distribution functions deviate from the initial state and eventually the instability is saturated by ion trapping in the azimuthal direction. 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subjects drift instability
Hall thruster
particle in cell (PIC) simulation
plasma
title The E × B drift instability in Hall thruster using 1D PIC/MCC simulation
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