Characterizing low-frequency oscillation of Hall thrusters by dielectric wall temperature variation

Journal Article · Thu May 15 00:00:00 EDT 2014 · Journal of Vacuum Science and Technology. A, Vacuum, Surfaces and Films

DOI:https://doi.org/10.1116/1.4869284· OSTI ID:22258627

Ning, Guo ^[1]; Liqiu, Wei; Yongjie, Ding ^[2]

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1. Science and Technology on Vacuum and Cryogenics Technology and Physics Laboratory, Lanzhou 730013 (China)
2. Harbin Institute of Technology, Mail Box 3047, Harbin 150001 (China)

The low-frequency oscillation characteristics of a Hall thruster were investigated by varying the dielectric wall temperature. Experimental results indicate that increasing the dielectric wall temperature can result in an increase in the amplitude of low-frequency oscillation and a slight decrease in its frequency. Physical analysis revealed that this change is related to the secondary electron emissions at different dielectric wall temperatures. The evidence suggests that this technique can serve as an effective way for future studies to examine how secondary electron emissions affect a discharging thruster.

• OSTI ID: 22258627
• Journal Information: Journal of Vacuum Science and Technology. A, Vacuum, Surfaces and Films, Vol. 32, Issue 3; Other Information: (c) 2014 American Vacuum Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0734-2101
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
DIELECTRIC MATERIALS
ELECTRON EMISSION
HIGH ROOMS
OSCILLATIONS
THRUSTERS
VARIATIONS
WALLS