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The Weibel instability in a circular rarefaction wave
Linköping University, Department of Science and Technology, Media and Information Technology. Linköping University, The Institute of Technology. (Scientific Visualization)ORCID iD: 0000-0003-4055-0552
Queen's University Belfast, UK. (Centre for Plasma Physics)
Queen's University Belfast, UK. (Centre for Plasma Physics)
LULI, Ecole Polytechnique, CNRS, CEA, UPMC, Palaiseau, France.
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2012 (English)In: Proceedings of the 39th European Physical Society Conference & 16th Int. Congress on Plasma Physics, 2012, P1.176-1-P1.176-4 p.Conference paper, Oral presentation only (Refereed)
Abstract [en]

Instabilities behind the front of a cylindrically expanding plasma have been investigated experimentally and with a particle-in-cell simulation. Tubelike filamentary structures form behind the front of a plasma created by irradiating wire targets with a ps-duration and intense ( 1019 W cm-2) laser pulse. These filaments exhibit coherent magnetic fields with a remarkable stability ( 103 / wp: plasma frequency). PIC simulations indicate that an instability driven by a thermal anisotropy of the electron population is the cause. This instability requires a plasma density gradient and hot electrons. It can thus contribute to the generation of strongsustained magnetic fields in astrophysical jets.

Place, publisher, year, edition, pages
2012. P1.176-1-P1.176-4 p.
Keyword [en]
plasma physics, laser plasma
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:liu:diva-79451OAI: oai:DiVA.org:liu-79451DiVA: diva2:542260
Conference
39th European Physical Society Conference & 16th Int. Congress on Plasma Physics, 2-6 July 2012, Stockholm
Funder
Swedish Research Council, 2010-4063
Available from: 2012-07-30 Created: 2012-07-30 Last updated: 2017-11-03

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http://ocs.ciemat.es/epsicpp2012pap/pdf/P1.176.pdf

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Dieckmann, Mark Eric

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Citation style
  • apa
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  • asciidoc
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