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Generation of wakefields by electromagnetic waves in a magnetized electron-positron-ion plasma
Umeå University, Faculty of Science and Technology, Department of Physics. Institut für Theoretische Physik IV, Ruhr-Universität Bochum D-44780 Bochum, Germany; Scottish Universities Physics Alliance Department of Physics, University of Strathclyde, Glasgow, Scotland; Centre for Fundamental Physics, Rutherford Appleton Laboratory, Chilton, Didcot, UK; GoLP/Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, 1049-001 Lisboa, Portugal; School of Physics, University of KwaZulu-Natal, 4000 Durban, South Africa.
2009 (English)In: Plasma Physics and Controlled Fusion, ISSN 0741-3335, E-ISSN 1361-6587, Vol. 51, no 2, 024013Article in journal (Refereed) PublishedText
Abstract [en]

The generation of electrostatic wakefields by an ordinary mode radiation and a magnetic field-aligned circularly polarized electromagnetic (CPEM) wave in a magnetized electron-positron-ion (e-p-i) plasma is considered. It is found that the presence of the ions is essential for the generation of upper-hybrid wakefields by the ordinary mode radiation, while the magnetic field-aligned electron plasma wakefields are created by the ponderomotive force of CPEM only if either the ions or the external magnetic field is present in an e-p-i magnetoplasma. The electromagnetic wave generated wakefields can trap both the electrons and the positrons and accelerate them to very high energies.

Place, publisher, year, edition, pages
Institute of Physics (IOP), 2009. Vol. 51, no 2, 024013
Keyword [en]
gamma-ray bursts, nonlinear propagation, field generation, pair production, laser-pulses, accelerator, beams, pulsars, instabilities, radiation
National Category
Fusion, Plasma and Space Physics
URN: urn:nbn:se:umu:diva-116029DOI: 10.1088/0741-3335/51/2/024013ISI: 000262585400014OAI: diva2:904704
Available from: 2016-02-19 Created: 2016-02-08 Last updated: 2016-02-19Bibliographically approved

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Shukla, Padma Kant
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