J Winter 2004 Plasma Phys. Control. Fusion 46 B583 doi:10.1088/0741-3335/46/12B/047
J Winter
Show affiliationsSmall particles with sizes between a few nanometers and a few 10 µm (dust) are formed in fusion devices by plasma–surface interaction processes. Though it is not a major problem today, dust is considered a problem that could arise in future long pulse fusion devices. This is primarily due to its radioactivity and due to its very high chemical reactivity. Dust formation is particularly pronounced when carbonaceous wall materials are used. Dust particles can be transported in the tokamak over significant distances. Radioactivity leads to electrical charging of dust and to its interaction with plasmas and electric fields. This may cause interference with the discharge but may also result in options for particle removal. This paper discusses some of the multi-faceted problems using information both from fusion research and from low-temperature dusty plasma work.
52.27.Lw Dusty or complex plasmas; plasma crystals
52.40.Hf Plasma-material interactions; boundary layer effects
Issue 12B (December 2004)
Received 2 July 2004
Published 17 November 2004
J Winter 2004 Plasma Phys. Control. Fusion 46 B583
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