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Abstract

Particle cross-field transport is one of the important issues in understanding the physical behaviour of magnetised plasmas. In this study cross-field transport of barium test ions was investigated in a Q-machine plasma. Test particles were produced and tracked in their motion by an optical tagging method. The comparison between the measured tag signal and a simple theoretical simulation yielded a quantitative evaluation of the ion diffusivity. It was observed that the injection of different noble buffer gases modifies the plasma parameters in such a way that although the diffusion is supported by classical mechanisms, its magnitude is reduced considerably.

Additional information

Authors: FASOLI A, Centre de Recherches en Physique des Plasmas, Ecole Polytechnique Fédérale de Lausanne (CH);PARIS P J, Centre de Recherches en Physique des Plasmas, Ecole Polytechnique Fédérale de Lausanne (CH);TRAN M Q, Centre de Recherches en Physique des Plasmas, Ecole Polytechnique Fédérale de Lausanne (CH);SKIFF F N, University of Maryland, Laboratory of Plasma Research (US);GOOD T N, Gettysburg College (US)
Bibliographic Reference: Article: IEEE Transactions on Plasma Science, Vol. 20 (1992) No. 6, pp. 655-658
Record Number: 199310703 / Last updated on: 1994-11-29
Category: PUBLICATION
Original language: en
Available languages: en