Numerical study of plasma beam propagation in a toroidal duct

B. Alterkop, E. Gidalevich, S. Goldsmith, R. L. Boxman

Research output: Contribution to conferencePaperpeer-review

Abstract

A numerical solution of a self consistent two fluid hydrodynamic model for vacuum arc plasma beam propagation through a toroidal magnetic filter is obtained. In a toroidal magnetic field 5-20mT the electrons are magnetized but ions are unmagnetized. In order to describe correctly the boundary conditions, duct curvature and centrifugal force a toroidal coordinate system was used. Electric field, current distribution, particle density and mass flows were calculated. The numerical results agree well with the principle experimental data: a) the duct efficiency does not exceed (8-10)% and it depends weakly on the magnetic field strength, b) at the torus exit maximum of plasma density distribution is displaced from the cross-section center in direction of vector product Bx g, were g is the ion centrifugal acceleration and B is the toroidal magnetic field.

Original languageEnglish
Pages853-857
Number of pages5
StatePublished - 1996
EventProceedings of the 1996 17th International Symposium on Discharges and Electrical Insulation in Vacuum, ISDEIV. Part 1 (of 2) - Berkeley, CA, USA
Duration: 21 Jul 199626 Jul 1996

Conference

ConferenceProceedings of the 1996 17th International Symposium on Discharges and Electrical Insulation in Vacuum, ISDEIV. Part 1 (of 2)
CityBerkeley, CA, USA
Period21/07/9626/07/96

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