NDLI: Optimization of Hall thruster magnetic field topography

Content Provider	IEEE Xplore Digital Library
Author	Hofer, R.R. Peterson, P.Y. Gallimore, A.D.
Copyright Year	2000
Description	Author affiliation: Dept. of Aerosp. Eng., Michigan Univ., Ann Arbor, MI, USA (Hofer, R.R.)
Abstract	Summary form only given. The improvement of the performance and component lifetime of a closed drift Hall thruster, as well as a decrease of plume divergence and plasma-spacecraft interaction is a goal of many research efforts at the University of Michigan. A three-dimensional magnetostatic code, Magnet 6 by Infolytica, was utilized in an effort to ascertain possible improvements to the Plasmadynamics and Electric Propulsion Laboratory 5 kW class P5 Hall thruster. The magnetic field topography was measured for the P5 thruster at a 1.6 kW operating condition where the coil currents were 2 A for the outer coils and 3 A for the inner coil. The measurements were then compared to the field topography predicted from the 3D code to verify the accuracy of the simulation. Next, several variations of the magnetic field circuit for the P5, which included coil size, pole piece shape and position, and operating currents were investigated using the 3D magnetic field code. The simulations focused on strengthening the radial magnetic field while decreasing the axial field and lessening the magnetic fringe effects at the exit plane to decrease divergence of the plasma plume. Modifications to the P5 thruster were made to experimentally verify the results of the numerical simulations. The magnetic field topography, plume divergence, and the performance characteristics of the thruster were determined and compared to existing data taken before the magnetic field was optimized.
File Size	96157
File Format	PDF
ISBN	0780359828
ISSN	07309244
DOI	10.1109/PLASMA.2000.855077
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2000-06-04
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Magnetic fields Surfaces Magnetic field measurement Plasma measurements Coils Magnetostatics Circuit simulation Plasma simulation Propulsion Laboratories
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Condensed Matter Physics Electrical and Electronic Engineering

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