Bulletin of the American Physical Society
76th Annual Gaseous Electronics Conference
Volume 68, Number 9
Monday–Friday, October 9–13, 2023; Michigan League, Ann Arbor, Michigan
Session IW5: Poster Session II; Exhibition & Coffee (4:00pm-6:00pm)
4:00 PM,
Wednesday, October 11, 2023
Room: Michigan League, Ballroom
Abstract: IW5.00070 : Background Pressure Effect on a Novel ECR Magnetic Nozzle Thruster*
Presenter:
Oliver Hitchens
(University of Surrey)
Authors:
Oliver Hitchens
(University of Surrey)
Thomas Munro-O'Brien
(University of Southampton)
Charlie Ryan
(University of Southampton)
Andrea Lucca Fabris
(University of Surrey)
A linear increase in thrust with a logarithmic decrease in backing pressure has been previously observed. This relationship has been experimentally verified and measured in the Surrey Space Centre’s large vacuum chamber with a novel ECR Thruster developed at the University of Surrey. Plume measurements will be taken via Optical Emission Spectroscopy as well as Faraday and Langmuir probes to determine facility pressure effects on electron temperature and plume divergence. However, with the thruster running, Surrey’s large vacuum chamber can only achieve a backing pressure of 6E-6 mbar. To test backing pressure effects at lower pressures the thruster will be tested in the University of Southampton’s large vacuum chamber. As vacuum chamber size has also been known to affect the performance of ECR Magnetic Nozzle Thrusters, performance will also be compared between the two chambers.
*University of Surrey, University of Southampton
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