NASA NTRS · 20140016586
Electric Propulsion Apparatus
Abstract
An electric propulsion machine includes an ion thruster having an annular discharge chamber housing an anode having a large surface area. The ion thruster includes flat annular ion optics with a small span to gap ratio. Optionally, a second electric propulsion thruster may be disposed in a cylindrical space disposed within an interior of the annulus.
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Patterson, Michael J.. 2013-06-25. Electric Propulsion Apparatus. https://ntrs.nasa.gov/citations/20140016586
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