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Transport of vacuum arc plasma through straight and curved magnetic ducts

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3 Author(s)
Storer, J. ; 3M, St. Paul, Minnesota 55144 ; Galvin, J.E. ; Brown, I.G.

Your organization might have access to this article on the publisher's site. To check, click on this link:http://dx.doi.org/+10.1063/1.343711 

We report on an experimental investigation of the transport of a metal vapor vacuum arc plasma through straight and curved magnetic solenoids for the case of an iron plasma and for magnetic field strength up to 650 G. We find that the fraction of plasma transported increases with magnetic field strength and saturates at a field at which the ion gyroradius equals the radius of the plasma channel. The magnetic field strength at the cathode location, where the plasma is injected into the solenoid, was found to be important, and for the present work the injection efficiency optimizes at a field of about 150 G.

Published in:

Journal of Applied Physics  (Volume:66 ,  Issue: 11 )