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Relativistic magnetic flux amplification
KTH, School of Electrical Engineering (EES), Space and Plasma Physics.
2013 (English)In: Digest of Technical Papers-IEEE International Pulsed Power Conference, 2013Conference paper (Refereed)
Abstract [en]

Amplification of magnetic flux and electric polarization fields caused by a plasma streaming at relativistic velocity in to a magnetic field is discussed. It is shown that the electrostatic polarization field that arises in a plasma beam streaming across magnetic field lines at relativistic velocities will cause an amplification of the magnetic flux. This effect is in complete contrast to the expulsion of the magnetic field from the plasma interior that can be expected in high βK plasmas. The amplification is shown to be caused by the relativistic motion of the space charge layers setting up the polarization field. Three dimensional electromagnetic particle-in-cell simulations that support this theory are presented.

Place, publisher, year, edition, pages
, Digest of Technical Papers-IEEE International Pulsed Power Conference
Keyword [en]
Electric polarization, Electrostatic polarization, Flux amplification, Magnetic field line, Particle-in-cell simulations, Plasma streaming, Polarization field, Space charge layers, Magnetic fields, Magnetic flux, Amplification
National Category
Energy Engineering
URN: urn:nbn:se:kth:diva-139851DOI: 10.1109/PPC.2013.6627640ScopusID: 2-s2.0-84888620494ISBN: 9781467351676OAI: diva2:687971
2013 19th IEEE Pulsed Power Conference, PPC 2013; San Francisco, CA, United States, 16-21 June 2013

QC 20140115

Available from: 2014-01-15 Created: 2014-01-15 Last updated: 2014-01-23Bibliographically approved

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Brenning, Nils
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