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Model of the plasma potential distribution in the plume of a hollow cathode

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dc.contributor.author Katz, Ira
dc.contributor.author Mikellides, Ioannis G.
dc.contributor.author Goebel, Dan M.
dc.date.accessioned 2007-12-12T21:46:26Z
dc.date.available 2007-12-12T21:46:26Z
dc.date.issued 2004-07-12
dc.identifier.citation Joint Propulsion Conference, Fort Lauderdale, Florida, July 12-14, 2006. en
dc.identifier.clearanceno 04-2173
dc.identifier.uri http://hdl.handle.net/2014/40572
dc.description.abstract In this paper we present results from a new model of the plasma potentials in the plume just downstream of the hollow cathode keeper. We examine the electron drift velocity as the hollow cathode plasma and neutral gas expand downstream of the keeper. If the drift velocity exceeds the thermal velocity a double layer potential structure develops that is the source of hot electrons. Ions are accelerated upstream through the double layer. The locations of the double layers are calculated using a simple model. It is shown that as the cathode gas flow increases, the location of the double layer moves farther downstream. en
dc.description.sponsorship NASA/JPL en
dc.format.extent 1349837 bytes
dc.format.mimetype application/pdf
dc.language.iso en_US en
dc.publisher Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2004. en
dc.subject ion propulsion en
dc.subject hollow cathode en
dc.subject plasma generation en
dc.title Model of the plasma potential distribution in the plume of a hollow cathode en
dc.type Preprint en


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