Effect of electron temperature anisotropy on near-wall conductivity in Hall thrusters

2014 ◽  
Vol 21 (6) ◽  
pp. 060703 ◽  
Keyword(s):  
Electron Temperature ◽  
Hall Thrusters ◽  
Temperature Anisotropy ◽  
Wall Conductivity ◽  
Near Wall

The Effect of Magnetic Mirror on Near Wall Conductivity in Hall Thrusters

2008 ◽  
Vol 48 (8) ◽  
pp. 543-554 ◽  
Author(s):  
D. Yu ◽  
H. Liu ◽  
Y. Cao ◽  
H. Fu
Keyword(s):  
Magnetic Mirror ◽  
Hall Thrusters ◽  
Wall Conductivity ◽  
Near Wall

Numerical Simulation for the Effect of Wall Material on Near Wall Conductivity in Hall Thrusters

2010 ◽  
Vol 29-32 ◽  
pp. 519-524
Author(s):  
Zhi Wen Wu ◽  
Shu Shu ◽  
Da Ren Yu ◽  
Xiang Yang Liu ◽  
Ning Fei Wang
Keyword(s):  
High Performance ◽  
Channel Wall ◽  
Secondary Electron Emission ◽  
Potential Drop ◽  
Wall Material ◽  
Hall Thrusters ◽  
Wall Conductivity ◽  
Simulation Results ◽  
Absolute Potential ◽  
Near Wall

The wall material plays an important role for the electron current due to near wall conductivity in Hall Thrusters. A Monte Carlo method combined with a one dimensional steady sheath model is presented and is applied to simulate the electron conductive current due to near wall conductivity for the different channel wall materials of Hall thruster. The simulation results show that the higher the secondary electron emission (SEE) coefficient of the channel wall material is, the greater the electron conductive current is. Based on the simulation, a physical explanation is given from the viewpoint of near wall conductivity. For the channel wall material with low SEE coefficient, the secondary electrons taking part in the near wall conductivity becomes less. In addition, the absolute potential drop in the sheath near the wall increases, which means that the sheath can stop more electrons from colliding with the channel wall. And consequently the electron conductive current due to near wall conductivity is much less. The situation is vice verse for the channel wall material with high SEE coefficient. The simulation results are qualitatively in accordance with the experiments. The results can help to choose and design the wall material of the Hall Thrusters with a high performance.

Effect of oscillating sheath on near-wall conductivity in Hall thrusters

2007 ◽  
Vol 14 (6) ◽  
pp. 064505 ◽  
Author(s):  
Daren Yu ◽  
Hong Li ◽  
Zhiwen Wu ◽  
Wei Mao
Keyword(s):  
Hall Thrusters ◽  
Wall Conductivity ◽  
Near Wall

scholarly journals Effect of electron temperature anisotropy on BN dielectric wall sheath characteristics in Hall thrusters

2011 ◽  
Vol 60 (2) ◽  
pp. 025204
Author(s):  
Qing Shao-Wei ◽  
Ding Yong-Jie ◽  
Duan Ping ◽  
Wang Xiao-Gang ◽  
Yu Da-Ren
Keyword(s):  
Electron Temperature ◽  
Hall Thrusters ◽  
Temperature Anisotropy ◽  
Dielectric Wall

Electromagnetic electron temperature anisotropy instabilities

1985 ◽  
Vol 90 (A8) ◽  
pp. 7607-7610 ◽  
Author(s):  
S. Peter Gary ◽  
Christian D. Madland
Keyword(s):  
Electron Temperature ◽  
Temperature Anisotropy

A photographic method for in-orbit measurement of electron temperature distribution in the plume of Hall thrusters

2018 ◽  
Vol 27 (8) ◽  
pp. 084002 ◽  
Author(s):  
Li-Qiu Wei ◽  
Wen-Bo Li ◽  
Yong-Jie Ding ◽  
Xi-Ming Zhu ◽  
Yan-Fei Wang ◽  
...  
Keyword(s):  
Temperature Distribution ◽  
Electron Temperature ◽  
Photographic Method ◽  
Hall Thrusters

Is Near-wall Conductivity a Misnomer?

2003 ◽  
Author(s):  
Serge Barral ◽  
Karol Makowski ◽  
Zbigniew Peradzynski ◽  
Michel Dudeck
Keyword(s):  
Wall Conductivity ◽  
Near Wall
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