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High Current Cathode Thermal Behavior, Part II: TheoryCathode erosion is one of the life limiting mechanisms for several classes of electric thrusters. Since cathode erosion is strongly dependent on the cathode temperature, a quantitative understanding of the effects of cathode operation on the cathode temperature is required. The development of a cathode/plasma interaction model for determining the heat loads to the cathode as function of the various free stream plasma parameters is presented. This model is combined with a cathode thermal model in order to provide a complete and integrated picture of high current cathode operation.
Document ID
20060039354
Acquisition Source
Jet Propulsion Laboratory
Document Type
Preprint (Draft being sent to journal)
External Source(s)
Authors
Goodfellow, K. D.
Polk, J. E.
Date Acquired
August 23, 2013
Publication Date
September 13, 1993
Distribution Limits
Public
Copyright
Other
Keywords
cathode erosion cathode temperature high current cathode operation

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