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Radiation condensation instability of compressional electromagnetic modes in magnetoplasmas containing charged dust impurities
Umeå University, Faculty of Science and Technology, Department of Physics. Institut für Theoretische Physik IV and Centre for Plasma Science and Astrophysics, Ruhr-Universität Bochum, D-44780 Bochum, Germany; Max-Planck Institut für Extraterrestrische Physik, D-85741 Garching, Germany; GoLP/Instituto Superior Técnico, 1049-001 Lisbon, Portugal; Centre for Fundamental Physics, Rutherford Appleton Laboratory, Chilton, Didcot, Oxon 0X11 0QX, UK; and Department of Physics, University of Strathclyde, Glasgow, Scotland G4 ONG, UK.
2006 (English)In: Plasma Physics and Controlled Fusion, ISSN 0741-3335, E-ISSN 1361-6587, Vol. 48, no 5, 509-514 p.Article in journal (Refereed) PublishedText
Abstract [en]

We report on an investigation into the radiation condensation ( RC) instability of low-frequency ( in comparison with the electron gyrofrequency) compressional electromagnetic waves in a magnetized plasma containing charged dust impurities. By using a two-fluid model, supplemented by the Faraday and Ampere laws, we derive a new dispersion relation. The latter is numerically analysed to examine the role of charged dust grains on the growth rate of the RC instability. The relevance of our investigation to density condensation in the next generation tokamak edges and on solar prominences is discussed.

Place, publisher, year, edition, pages
Bristol: Institute of Physics (IOP), 2006. Vol. 48, no 5, 509-514 p.
Keyword [en]
Tokamak edge plasmas, thermal-instability, dynamics, Marfes
National Category
Fusion, Plasma and Space Physics
Identifiers
URN: urn:nbn:se:umu:diva-119400DOI: 10.1088/0741-3335/48/5/001ISI: 000238328900001OAI: oai:DiVA.org:umu-119400DiVA: diva2:927129
Available from: 2016-05-11 Created: 2016-04-18 Last updated: 2016-05-11Bibliographically approved

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Shukla, Padma Kant
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