Diagnostic Setup for Characterization of Near-Anode Processes in Hall Thrusters

Dorf, L. ; Raitses, Y. ; Fisch, N.J.

Princeton University. Plasma Physics Laboratory.

关键词: 70 Plasma Physics And Fusion Technology;    Hall Thruster;    Positioning;    Thrusters Diagnostics;    Electrostatic Probes;   

DOI  :  10.2172/814790
RP-ID  :  PPPL-3864
RP-ID  :  AC02-76CH03073
RP-ID  :  814790

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来源: UNT Digital Library

【 摘 要 】

A diagnostic setup for characterization of near-anode processes in Hall-current plasma thrusters consisting of biased and emissive electrostatic probes, high-precision positioning system and low-noise electronic circuitry was developed and tested. Experimental results show that radial probe insertion does not cause perturbations to the discharge and therefore can be used for accurate near-anode measurements.