Proceedings of NATO Advanced Research Workshop on the Formation, Transport and Consequences of Particles in Plasmas Held in Castera-Verduzan, France on 30 August-3 September 1993
TOULOUSE-3 UNIV (FRANCE)
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A review is presented of the phenomena associated with particles in low pressure plasmas. Dust particles which are typically micrometers in diameter have been observed by laser light scattering in various low-pressure, radiofrequency-excited plasmas. Experiments have been designed so that the origin of the dust material is unambiguous and, to some extent, quantitative. The processes involved in the appearance of the microscopic dust particles are outlined and compared with our experimental observations. The source material and its required generation rate, nucleation, charging, growth mechanisms, growth rates, and saturation mechanisms are discussed. The mutual influences of dust and plasma, particularly the role of geometric and circuit boundary conditions in laboratory plasmas, are described.
- Plasma Physics and Magnetohydrodynamics