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Persistent URL http://purl.org/net/epubs/work/41404
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Record Id 41404
Title Development and Testing of a Field-Emission Neutraliser for Micro-electric Propulsion
Abstract The work reported was carried out through a European Space Agency contract in the frame of LISA/Pathfinder with the Rutherford Appleton laboratory for the design, development and manufacturing of a field-emission neutralizer intended for use with micro-electric propulsion systems. The fabrication process is briefly described and the device characteristics for a neutralizer are outlined. Results from experimental activities performed at ESA are presented. The neutralizer assembly has been operated for short period of time in constant-current mode at levels ranging from 100μA to 1mA with accuracy better than 0.1%. A predicted power consumption of 0.2 W/mA has been verified. Unstable behavior of the emission properties over time has been observed. Temperature sensitivity has been identified and characterized, although it was found not to be the cause of those instabilities.
Organisation CCLRC , SSTD
Keywords Physics , Engineering , field emission , ion thruster , micropropulsion , neutralization
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Language English (EN)
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Paper In Conference Proceedings In Proc. 30th International Electric Propulsion Conference (IEPC 2007), Florence, Italy, 17-20 September 2007, (2007). Frigot_etal07.pdf 2007