Experimental studies of the propagation of electrostatic ion perturbations by time-resolved laser-induced fluorescence

Effects induced by the propagation of several kinds of electrostatic perturbation in a low-density collisionless argon plasma are observed with space, time, and velocity-resolved laser-induced fluorescence (LIF). The propagation of strong self-organized ion structures is observed and the associated...

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Bibliographic Details
Published in:Physics of plasmas 2001-08, Vol.8 (8), p.3535-3544
Main Authors: Bachet, G., Skiff, F., Doveil, F., Stern, R. A.
Format: Article
Language:English
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Summary:Effects induced by the propagation of several kinds of electrostatic perturbation in a low-density collisionless argon plasma are observed with space, time, and velocity-resolved laser-induced fluorescence (LIF). The propagation of strong self-organized ion structures is observed and the associated electric field is determined. Snap shots of the ion phase space with a time resolution of 2 μs can be reconstructed from the experimental data. All the terms of the kinetic equation can also be determined from the data. A one-dimensional (1D) numerical simulation reproduces qualitatively the experimentally observed ion phase space behavior.
ISSN:1070-664X
1089-7674
DOI:10.1063/1.1382819