Faraday Probe – JPL

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Faraday probes provide a measurement of plasma ion current, and are often used in angular sweeps to characterize the divergence of thruster plumes. The probe pictured is modeled on the JPL nude Faraday probe design.

Walker, M. L. R., Hofer, R. R., Gallimore, A. D., “The Effects of Nude Faraday Probe Design and Vacuum Facility Backpressure on the Measured Ion Current Density Profile of Hall Thruster Plumes” AIAA-2002-4253, 38th Joint Propulsion Conference, Indianapolis, IN, July 7-10, 2002.

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