Magnetic Detachment and Plume Control in Escaping Magnetized Plasma

Fisch, P. F. Schmit and N. J.

Princeton University. Plasma Physics Laboratory.

关键词: 70 Plasma Physics And Fusion Technology;    Apertures;    Angular Velocity;    Efficiency;    Thrusters Thrusters Ambipolar Drift Detachment;   

DOI  :  10.2172/941557
RP-ID  :  PPPL-4362
RP-ID  :  DE-ACO2-76CHO30783
RP-ID  :  941557

美国|英语

来源: UNT Digital Library

【 摘 要 】

The model of two-fluid, axisymmetric, ambipolar magnetized plasma detachment from thruster guide fields is extended to include plasmas with non-zero injection angular velocity profiles. Certain plasma injection angular velocity profiles are shown to narrow the plasma plume, thereby increasing exhaust efficiency. As an example, we consider a magnetic guide field arising from a simple current ring and demonstrate plasma injection schemes that more than double the fraction of useful exhaust aperture area, more than halve the exhaust plume angle, and enhance magnetized plasma detachment.