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High-frequency probing diagnostic for Hall current plasma thrusters

2002; American Institute of Physics; Volume: 73; Issue: 8 Linguagem: Inglês

10.1063/1.1494857

1527-2400

A. Litvak, Yevgeny Raitses, N. J. Fisch,

Cryptographic Implementations and Security

High-frequency oscillations (1–100 MHz) in Hall thrusters have not received sufficient experimental scrutiny. A diagnostic setup, consisting of a single Langmuir probe, a special shielded probe connector-positioner, and an electronic impedance-matching circuit, was successfully built and calibrated. Through simultaneous high-frequency probing of the Hall-thruster plasma at multiple locations, high-frequency plasma waves have been successfully identified and characterized (Ref. 1).