In situ dust detection in fusion devices
2008 (English)In: Plasma Physics and Controlled Fusion, ISSN 0741-3335, E-ISSN 1361-6587, Vol. 50, no 12, 124046- p.Article in journal (Refereed) Published
Diagnostics for monitoring dust in tokamaks during plasma discharges, both established and currently being developed, are discussed with a focus on the range of dust parameters they can detect. Visible imaging can currently be used for dust particles bigger than a few mu m and velocities below 1 km s(-1). The dust impact ionization phenomenon can be used for the detection of particles with velocities above a few km s(-1). Laser light scattering gives an insight into the amount of sub-micron dust. Aerogels, light porous materials, allow capturing of dust particles without destroying them and determining their velocity. Other methods include the microbalance technique and electrostatic dust detectors. A recent suggestion to use the effects of dust on collective scattering for diagnostic purposes is also discussed.
Place, publisher, year, edition, pages
2008. Vol. 50, no 12, 124046- p.
IdentifiersURN: urn:nbn:se:kth:diva-38043DOI: 10.1088/0741-3335/50/12/124046ISI: 000261046600056ScopusID: 2-s2.0-67649160212OAI: oai:DiVA.org:kth-38043DiVA: diva2:436639
35th European-Physical-Society Conference on Plasma Physics Location: Hersonissos, GREECE Date: JUN 09-13, 2008 2011-08-242011-08-222011-08-24Bibliographically approved