@inproceedings{275b40d85e3b4151abccf2fac059052e,
title = "From voids to Yukawaballs and back",
abstract = "When dust particles are introduced in a radio-frequency discharge under micro-gravity conditions, usually a dust free void is formed due to the ion drag force pushing the particles away from the center. Experiments have shown that it is possible to close the void by reducing the power supplied to the discharge. This reduces the ion density and with that the ratio between the ion drag force and the opposing electric force. We have studied the behavior of a discharge with a large amount of dust particles (radius 3.4 micron) with our hydrodynamic model, and simulated the closure of the void for conditions similar to the experiment. We also approached the formation of a Yukawa ball from the other side, starting with a discharge at low power and injecting batches of dust, while increasing the power to prevent extinction of the discharge. Eventually the same situation could be reached.",
keywords = "Ion drag, Micro-gravity, RF discharge, Simulation, Void, Yukawa ball",
author = "V. Land and W.J. Goedheer",
year = "2008",
doi = "10.1063/1.2996726",
language = "English",
isbn = "9780735405691",
series = "AIP Conference Proceedings",
publisher = "American Institute of Physics",
pages = "143--146",
booktitle = "Multifacets of Dusty Plasmas— Fifth International Conference on the Physics of Dusty Plasmas, 18-23 May 2008, Ponte Degada, Portugal",
address = "United States",
note = "5th International Conference on the Physics of Dusty Plasmas ; Conference date: 18-05-2008 Through 23-05-2008",
}