A radial non-uniform helicon equilibrium discharge model

doi:10.1088/1674-1056/23/10/105202

›› 2014, Vol. 23 ›› Issue (10): 105202-105202.doi: 10.1088/1674-1056/23/10/105202

• PHYSICS OF GASES, PLASMAS, AND ELECTRIC DISCHARGES • 上一篇下一篇

A radial non-uniform helicon equilibrium discharge model

成玉国, 程谋森, 王墨戈, 李小康

College of Aerospace Science and Engineering, National University of Defense Technology, Changsha 410073, China

收稿日期:2014-01-30 修回日期:2014-03-28 出版日期:2014-10-15 发布日期:2014-10-15
基金资助:
Project supported by the National Natural Science Foundation of China (Grant No. 11305265).

A radial non-uniform helicon equilibrium discharge model

Cheng Yu-Guo (成玉国), Cheng Mou-Sen (程谋森), Wang Mo-Ge (王墨戈), Li Xiao-Kang (李小康)

College of Aerospace Science and Engineering, National University of Defense Technology, Changsha 410073, China

Received:2014-01-30 Revised:2014-03-28 Online:2014-10-15 Published:2014-10-15
Contact: Wang Mo-Ge E-mail:tlothf@126.com
About author:52.75.Di; 52.50.Qt; 02.60.Cb; 88.85.J-
Supported by:
Project supported by the National Natural Science Foundation of China (Grant No. 11305265).

摘要/Abstract

摘要： Helicon discharges have attracted great attention in the electric propulsion community in recent years. To acquire the equilibrium properties, a self-consistent model is developed, which combines the helicon/Trivelpiece-Gould (TG) waves-plasma interaction mechanism and the plasma flow theory under the confinement of the magnetic field. The calculations reproduce the central peak density phenomenon observed in the experiments. The results show that when operating in the wave coupling mode, high magnetic field strength B₀ results in the deviation of the central density versus B₀ from the linear relationship, while the density rise becomes flatter as the radiofrequency (rf) input power P_rf grows, and the electron temperature T_e radial profile is mainly determined by the characteristic of the rf energy deposition. The model could provide suggestions in choosing the B₀ and P_rf for medium power helicon thrusters.

关键词: helicon discharges, magnetic field, radial properties, thruster

Abstract: Helicon discharges have attracted great attention in the electric propulsion community in recent years. To acquire the equilibrium properties, a self-consistent model is developed, which combines the helicon/Trivelpiece-Gould (TG) waves-plasma interaction mechanism and the plasma flow theory under the confinement of the magnetic field. The calculations reproduce the central peak density phenomenon observed in the experiments. The results show that when operating in the wave coupling mode, high magnetic field strength B₀ results in the deviation of the central density versus B₀ from the linear relationship, while the density rise becomes flatter as the radiofrequency (rf) input power P_rf grows, and the electron temperature T_e radial profile is mainly determined by the characteristic of the rf energy deposition. The model could provide suggestions in choosing the B₀ and P_rf for medium power helicon thrusters.

Key words: helicon discharges, magnetic field, radial properties, thruster

中图分类号: (Ion and plasma propulsion)

52.75.Di

52.50.Qt (Plasma heating by radio-frequency fields; ICR, ICP, helicons) 02.60.Cb (Numerical simulation; solution of equations) 88.85.J- (Vehicle energy storage)

成玉国, 程谋森, 王墨戈, 李小康. A radial non-uniform helicon equilibrium discharge model[J]. , 2014, 23(10): 105202-105202.

Cheng Yu-Guo (成玉国), Cheng Mou-Sen (程谋森), Wang Mo-Ge (王墨戈), Li Xiao-Kang (李小康). A radial non-uniform helicon equilibrium discharge model[J]. Chin. Phys. B, 2014, 23(10): 105202-105202.

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A radial non-uniform helicon equilibrium discharge model

A radial non-uniform helicon equilibrium discharge model

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