Resistive Instabilities in Hall Current Plasma Discharge

Litvak, Andrei A. ; Fisch, Nathaniel J.

Princeton University. Plasma Physics Laboratory.

关键词: Acceleration;    Magnetic Fields;    Electrostatics;    Hydrodynamic Model;    70 Plasma Physics And Fusion Technology;   

DOI  :  10.2172/768665
RP-ID  :  PPPL-3521
RP-ID  :  AC02-76CH03073
RP-ID  :  768665

美国|英语

来源: UNT Digital Library

【 摘 要 】

Plasma perturbations in the acceleration channel of a Hall thruster are found to be unstable in the presence of collisions. Both electrostatic lower-hybrid waves and electromagnetic Alfven waves transverse to the applied electric and magnetic field are found to be unstable due to collisions in the E X B electron flow. These results are obtained assuming a two-fluid hydrodynamic model in slab geometry. The characterisitic frequencies of these modes are consistent with experimental observations in Hall current plasma thrusters.