JPL Technical Report Server

Effects of an internally-mounted cathode on hall thruster plume properties

Show simple item record Hofer, Richard R. Johnson, Lee K. Goebel, Dan M. Fitzgerald, Dennis J. 2006-09-11T21:33:43Z 2006-09-11T21:33:43Z 2006-07-09
dc.identifier.citation 42nd AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit Sacramento, California, July 9-12, 2006 en
dc.identifier.clearanceno 06-1813
dc.description.abstract The effects of cathode position on the plume properties of an 8 kW BHT-8000 Busek Hall thruster are discussed. Experiments were conducted at the Jet Propulsion Laboratory (JPL) in a vacuum chamber suitable for the development and qualification of high-power Hall thrusters. Multi-mode Hall thruster operation was demonstrated at operating conditions ranging from 200-500 V discharge voltage, 10-40 A discharge current, and 2-8 kW discharge power. Reductions in plume divergence and increased near-field plume symmetries were found to result from the use of an internally-mounted cathode instead of the traditional externally-mounted configuration. High-current hollow cathodes developed at JPL utilizing lanthanum hexaboride (LaB6) emitters were also demonstrated. Discharge currents up to 100 A were achieved with the cathode operating alone and up to 40 A during operation with the Hall thruster. LaB6 cathodes were investigated because of their potential to reduce overall system cost and risk due to less stringent xenon purity and handling requirements. en
dc.description.sponsorship NASA/JPL en
dc.format.extent 1128063 bytes
dc.format.mimetype application/pdf
dc.language.iso en_US en
dc.publisher Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2006. en
dc.relation.ispartofseries AIAA en
dc.relation.ispartofseries 2006-4482 en
dc.subject electric propulsion en
dc.subject hall thruster en
dc.title Effects of an internally-mounted cathode on hall thruster plume properties en
dc.type Preprint en

Files in this item

This item appears in the following Collection(s)

Show simple item record



My Account