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Alternative Neutralization Technologies Enabling the Use of Exotic Propellants in Electric Propulsion

Gurciullo, Antonio, Lucca Fabris, Andrea and Knoll, Aaron (2017) Alternative Neutralization Technologies Enabling the Use of Exotic Propellants in Electric Propulsion In: 35th International Electric Propulsion Conference, 08-12 Oct 2017, Georgia Institute of Technology, Atlanta, Georgia, USA.

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Abstract

In this paper we present the design and test campaign results of two plasma cathodes for electric propulsion applications. One cathode is based on a Hall-type discharge operated in DC. Three magnetic topologies have been tested in order to govern the discharge and the electron extraction with this neutralizer. The second cathode exploits a planar magnetron discharge operated in DC. Preliminary results of extraction tests involving atomic and molecular gases are presented. It is shown that the presence of open-loop Hall currents and null magnetic regions created by four arc magnets whose axial polarity is alternated may increase extraction performance of the Hall-type neutralizer. It is also shown that the extraction characteristics of the planar magnetron neutralizer are qualitatively similar to those of the Hall-type neutralizer.

Item Type: Conference or Workshop Item (Conference Paper)
Divisions : Faculty of Engineering and Physical Sciences > Electronic Engineering
Authors :
NameEmailORCID
Gurciullo, Antonioa.gurciullo@surrey.ac.uk
Lucca Fabris, Andreaa.luccafabris@surrey.ac.uk
Knoll, AaronA.Knoll@surrey.ac.uk
Date : 12 October 2017
Copyright Disclaimer : © The authors 2017
Related URLs :
Depositing User : Clive Harris
Date Deposited : 12 Apr 2018 04:27
Last Modified : 12 Apr 2018 08:02
URI: http://epubs.surrey.ac.uk/id/eprint/846180

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