Statistics – Applications
Scientific paper
Jan 2000
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000aipc..504.1556p&link_type=abstract
SPACE TECHNOLOGY AND APPLICATIONS INTERNATIONAL FORUM - 2000. AIP Conference Proceedings, Volume 504, pp. 1556-1563 (2000).
Statistics
Applications
Ion And Plasma Propulsion, Arcs, Sparks, Lightning, Atmospheric Electricity, Nondestructive Testing: Electromagnetic Testing, Eddy-Current Testing
Scientific paper
Lithium Lorentz Force Accelerators (LFA's) are capable of processing very high power levels and are therefore applicable to a wide range of challenging missions. The cathode in these coaxial discharge devices operates at a very high temperature to supply the required current and appears to be the primary life-limiting component. One potential method for lowering the cathode temperature is to add a small amount of barium to the lithium propellant. An analytical model of the surface kinetics of this system shows that a relatively small partial pressure of barium can dramatically reduce the cathode operating temperature. Preliminary experiments with a lithium-fuelled thruster demonstrated temperature reductions of 350-400 K with barium addition. .
Kim Vladimir
Polk James
Semenikhin Sergei
Tikhonov Viktor
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