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Large quasineutral electron velocity oscillations in radial expansion of an ionizing plasma
Russian Academy of Science, Russia .
Zhejiang University, Peoples R China Ruhr University of Bochum, Germany .
Linköping University, Department of Physics, Chemistry and Biology, Theoretical Physics. Linköping University, The Institute of Technology.
2012 (English)In: Physics of Plasmas, ISSN 1070-664X, Vol. 19, no 9, 092118- p.Article in journal (Refereed) Published
Abstract [en]

Radial expansion of an ionizing gas or plasma cylinder into vacuum is investigated. An exact model for the evolution of the density and velocity fields of the electrons, ions, and neutrals, including the effect of photo and electron-impact ionization on the flow characteristics is developed and solutions obtained. A quasineutral nonlinear electrostatic mode involving rapid oscillations in the electron velocity but not in the density can occur in the expanding plasma. The mode turns out to be almost unaffected by weak ionization.

Place, publisher, year, edition, pages
American Institute of Physics (AIP) , 2012. Vol. 19, no 9, 092118- p.
National Category
Engineering and Technology
URN: urn:nbn:se:liu:diva-85093DOI: 10.1063/1.4754865ISI: 000309401300020OAI: diva2:564615

Funding Agencies|MoSTC|2011GB105000|NNSFC|10835003|

Available from: 2012-11-02 Created: 2012-11-02 Last updated: 2012-11-07

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