中国物理B ›› 2020, Vol. 29 ›› Issue (2): 25204-025204.doi: 10.1088/1674-1056/ab6719
• PHYSICS OF GASES, PLASMAS, AND ELECTRIC DISCHARGES • 上一篇 下一篇
The E×B drift instability in Hall thruster using 1D PIC/MCC simulation
Zahra Asadi, Mehdi Sharifian, Mojtaba Hashemzadeh, Mahmood Borhani Zarandi, Hamidreza Ghomi Marzdashti
- 1 Physics Department, Yazd University, Safaiyeh, Yazd, Iran;
2 Faculty of Physics, Shahrood University of Technology, Shahrood, Iran;
3 Laser and Plasma Research Institute, Shahid Beheshti University, G. C., Evin, Tehran, Iran
The E×B drift instability in Hall thruster using 1D PIC/MCC simulation
Zahra Asadi1, Mehdi Sharifian1, Mojtaba Hashemzadeh2, Mahmood Borhani Zarandi1, Hamidreza Ghomi Marzdashti3
- 1 Physics Department, Yazd University, Safaiyeh, Yazd, Iran;
2 Faculty of Physics, Shahrood University of Technology, Shahrood, Iran;
3 Laser and Plasma Research Institute, Shahid Beheshti University, G. C., Evin, Tehran, Iran
摘要： 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.
中图分类号: (Plasma simulation)
- 52.65.-y