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Stereoscopic Observations of Dust Clouds in Front of a Pixel Electrode in a Radio Frequency Discharge

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5 Author(s)
Schmidt, C. ; Inst. fur Exp. und Angewandte Phys., Christian-Albrechts-Univ., Kiel, Germany ; Arp, O. ; Himpel, M. ; Melzer, A.
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Dust particles confined in radio frequency discharges can form 2-D and 3-D dust clouds. In front of a positively biased additional “pixel” electrode, 2-D vertical aligned particle chains as well as 3-D cone-like clouds were observed, that are strongly affected by the bias voltage of the additional electrode. In order to understand which mechanisms lead to the chain formation, a stereoscopic camera system with a high spatial resolution was used to reconstruct the 3-D particle positions and their trajectories.

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Plasma Science, IEEE Transactions on  (Volume:41 ,  Issue: 4 )