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dc.contributor.authorJovel, David R.
dc.contributor.authorNauschütt, Benny
dc.contributor.authorWalker, Mitchell L. R.
dc.contributor.authorKlar, Peter J.
dc.date.accessioned2020-02-03T19:56:18Z
dc.date.available2020-02-03T19:56:18Z
dc.date.issued2020-01
dc.identifier.urihttp://hdl.handle.net/1853/62411
dc.descriptionPresented at the Georgia Tech Career, Research, and Innovation Development Conference (CRIDC), January 27-28, 2020, Georgia Tech Global Learning Center, Atlanta, GA.en_US
dc.descriptionThe Career, Research, and Innovation Development Conference (CRIDC) is designed to equip on-campus and online graduate students with tools and knowledge to thrive in an ever-changing job market.en_US
dc.descriptionDavid Jovel, in the School of Aerospace Engineering at Georgia Tech, was the winner of an Executive Vice President for Research Travel Award.
dc.description.abstractElectric propulsion is an alternative means for spacecraft to execute orbital maneuvers and provide attitude control in space. Electric propulsion devices generate thrust by electrically converting a neutral gas into a plasma and accelerating the heavy ions through an electric field. The performance of these devices is characterized in vacuum test facilities that can appropriately simulate the space environment and accommodate the plasma plume generated by the thruster. Understanding the facility effects on ion flux pathways from the plasma to its surroundings is critical in characterizing potential thruster-spacecraft interactions. The ion charge density profile of the 1.35 kW radiofrequency ion thruster 10 cm, RIT-10, was captured at the Justus-Liebig University JUMBO test facility. The vacuum chamber maintained high-vacuum levels in the 1x10E-6 Torr range using three turbomolecular pumps and an array of 8 cryopumps. The RIT-10 operating condition was held constant at 2 sccm Xe, 80 mA beam current, 1000 V screen grid bias, and -150 V acceleration grid bias with respect to chamber ground. The vacuum pumping configuration was changed by maintaining all three turbomolecular pumps operational while toggling on different sets of cryopumps. At each pumping configuration, Faraday probe scans across the RIT-10 exhaust plume collected ion flux measurements at 74 cm downstream from the thruster exit plane. The ion charge density profiles captured during the various pumping configurations are compared with the baseline scan. The results and their implications in characterizing facility effects on ion charge density and beam divergence angle of the RIT-10 are discussed on this poster.en_US
dc.description.sponsorshipGerman Academic Exchange Service (DAAD) - Deutscher Akademischer Austauschdiensten_US
dc.language.isoen_USen_US
dc.publisherGeorgia Institute of Technologyen_US
dc.relation.ispartofseriesCRIDCen_US
dc.subjectElectric propulsionen_US
dc.subjectPlasma diagnosticsen_US
dc.subjectRadiofrequency ion thrusteren_US
dc.subjectRIT-10en_US
dc.titleFacility Effects on Ion Flux Measurements of the Radiofrequency Ion Thruster 10 cm (RIT-10)en_US
dc.typePosteren_US
dc.contributor.corporatenameGeorgia Institute of Technology. Center for Career Discovery and Developmenten_US
dc.contributor.corporatenameGeorgia Institute of Technology. Office of Graduate Studiesen_US
dc.contributor.corporatenameGeorgia Institute of Technology. Office of the Vice Provost for Graduate Education and Faculty Developmenten_US
dc.contributor.corporatenameGeorgia Institute of Technology. Student Government Associationen_US
dc.contributor.corporatenameGeorgia Institute of Technology. School of Aerospace Engineeringen_US


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