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Sputtering in mercury ion thrustersA model, which assumes that chemisorption is the dominant mechanism, is applied to the sputtering rate measurements of the screen grid of a 30 cm thruster in the presence of nitrogen. The model utilizes inputs from a variety of experimental and analytical sources. The model of environmental effects on sputtering was applied to thruster conditions of low discharge voltage and a discussion of the comparison of theory and experiment is presented.
Document ID
19790023172
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Mantenieks, M. A. (NASA Lewis Research Center Cleveland, OH, United States)
Rawlin, V. K. (NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
August 9, 2013
Publication Date
January 1, 1979
Subject Category
Spacecraft Propulsion And Power
Report/Patent Number
NASA-TM-79266
E-181
Report Number: NASA-TM-79266
Report Number: E-181
Meeting Information
Meeting: Intern. Conf. on Electric Propulsion
Location: Princeton, NJ
Country: United States
Start Date: October 31, 1979
End Date: November 2, 1979
Sponsors: Deutsche Gesselschaft fur Luft-und Raumfahrt, AIAA
Accession Number
79N31343
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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