Journal
PLASMA SOURCES SCIENCE & TECHNOLOGY
Volume 18, Issue 4, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/0963-0252/18/4/045020
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Funding
- State Natural Sciences Fund [50877018]
- Cheung Kong Scholars Programme of China
- National Science Funds for Distinguished Young Scholar of China
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The characterization of coupling oscillation in a Hall thruster is experimentally studied by varying magnetic flux density or discharge voltage to obtain the relationship between discharge parameters and coupling oscillation. The dispersion relation of coupling oscillation is deduced using a 2D collisionless quasi-neutral fluid model and the factors having their effects on coupling oscillation are obtained. Experimental results and theoretical analysis indicate that coupling oscillation increases with magnetic flux density, discharge voltage or coupling intensity coefficient. The instability has a very large wave number within a frequency spectrum ranging from hundreds of kilohertz to megahertz.
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