Grubisic, A.N. and Gabriel, S.B.
Understanding hollow cathode thrust production mechanisms
At 31st International Electric Propulsion Conference.
20 - 24 Sep 2009.
Full text not available from this repository.
This paper reviews some of the design considerations for improving hollow cathode thrust efficiency and investigates propellant acceleration mechanisms based on experimental testing of a T5, T6 and ¼ inch cathode. A pendulum micro-thrust-balance was built for the measurement of thrust levels in the T5, T6 cathodes while a hemispherical energy analyzer was used for ion energy measurements in the ¼ inch hollow cathode. The data suggest that the thrust mechanism of hollow cathodes is composed primarily of gas dynamic mechanisms, particularly as a result of an intense electron pressure at the cathode exit. At high currents and low flowrates magneto-hydro-dynamic (MHD) forces arising from the self-induced azimuthal magnetic field within the orifice become significant in the acceleration process
Conference or Workshop Item
|Venue - Dates:
||31st International Electric Propulsion Conference, 2009-09-20 - 2009-09-24
||hollow cathode, plasma, propulsion
|24 September 2009||Published|
||15 Feb 2010
||18 Apr 2017 20:55
|Further Information:||Google Scholar|
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