Title :
Test-ion diffusion in a magnetized plasma
Author :
Fasoli, A.F. ; Skiff, F.N. ; Good, T.N. ; Paris, P.J. ; Tran, M.Q.
Author_Institution :
Centre de Recherches en Phys. des Plasmas, Ecole Polytech. Federale de Lausanne, Switzerland
fDate :
12/1/1992 12:00:00 AM
Abstract :
Cross-field transport of barium test ions is studied in a Q-machine plasma. Test particles are produced and tracked in their motion by an optical tagging method. The comparison between the measured tag signal and a simple theoretical simulation yields an evaluation of the ion diffusivity. Diffusion is supported by classical mechanisms. The injection of different noble buffer gases modifies the plasma parameters in such a way that the diffusion remains classical but its magnitude is reduced
Keywords :
barium; plasma diagnostics; plasma simulation; plasma transport processes; Ba; Q-machine plasma; classical diffusion; classical mechanisms; inert gas; injection; magnetized plasma; noble buffer gases; optical tagging method; test ion diffusion; Barium; Gases; Optical buffering; Particle beam optics; Particle tracking; Plasma measurements; Plasma simulation; Plasma transport processes; Tagging; Testing;
Journal_Title :
Plasma Science, IEEE Transactions on
