Electrostatic ion thruster optics calculationsCalculations have been performed which encompass both a self-consistent ion source extraction plasma sheath and the primary ion optics including sheath and electrode-induced aberrations. Particular attention is given to the effects of beam space charge, accelerator geometry, and properties of the downstream plasma sheath on the position of the electrostatic potential saddle point near the extractor electrode. The electron blocking potential blocking is described as a function of electrode thickness and secondary plasma processes.
Document ID
19920066507
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Whealton, John H. (NASA Headquarters Washington, DC United States)
Kirkman, David A. (NASA Headquarters Washington, DC United States)
Raridon, R. J. (Oak Ridge National Laboratory TN, United States)