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One-dimensional thermal pressure-driven expansion of a pair cloud into an electron-proton plasma
Linköping University, Department of Science and Technology, Media and Information Technology. Linköping University, Faculty of Science & Engineering. (Scientific Visualization)ORCID iD: 0000-0003-4055-0552
Centre for Plasma Physics, Queen's University Belfast, Belfast, UK..
Centre for Plasma Physics, Queen's University Belfast, Belfast, UK..
Université de Lyon, ENS de Lyon, CNRS, Centre de Recherche Astrophysique de Lyon, Lyon, France.
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2018 (English)In: Physics of Plasmas, ISSN 1070-664X, E-ISSN 1089-7674, Vol. 25, no 5, article id 064502Article in journal (Refereed) Published
Abstract [en]

Recently, a filamentation instability was observed when a laser-generated pair cloud interacted with an ambient plasma. The magnetic field it drove was strong enough to magnetize and accelerate the ambient electrons. It is of interest to determine if and how pair cloud-driven instabilities can accelerate ions in the laboratory or in astrophysical plasma. For this purpose, the expansion of a localized pair cloud with the temperature 400 keV into a cooler ambient electron-proton plasma is studied by means of one-dimensional particle-in-cell simulations. The cloud's expansion triggers the formation of electron phase space holes that accelerate some protons to MeV energies. Forthcoming lasers might provide the energy needed to create a cloud that can accelerate protons.

Place, publisher, year, edition, pages
Melville, NY, United States: A I P Publishing LLC , 2018. Vol. 25, no 5, article id 064502
Keywords [en]
Particle simulation, pair clouds, plasma instability
National Category
Fusion, Plasma and Space Physics
Identifiers
URN: urn:nbn:se:liu:diva-148179DOI: 10.1063/1.5026568ISI: 000437193700131PubMedID: 064502OAI: oai:DiVA.org:liu-148179DiVA, id: diva2:1212116
Note

Funding agencies: CRAL (Centre de Recherche Astrophysique de Lyon, CRAL, Universite de Lyon); French National Program of High Energy (PNHE); EPSRC [EP/N027175/1]

Available from: 2018-06-01 Created: 2018-06-01 Last updated: 2018-07-27Bibliographically approved

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Dieckmann, Mark E

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