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Magnetized Disruption of Inertially Confined Plasma Flows.
Manuel, M J-E; Sefkow, A B; Kuranz, C C; Rasmus, A M; Klein, S R; MacDonald, M J; Trantham, M R; Fein, J R; Belancourt, P X; Young, R P; Keiter, P A; Pollock, B B; Park, J; Hazi, A U; Williams, G J; Chen, H; Drake, R P.
Affiliation
  • Manuel MJ; General Atomics, Inertial Fusion Technologies, San Diego, California 92121, USA.
  • Sefkow AB; Department of Mechanical Engineering, University of Rochester, Rochester, NY 14623, USA.
  • Kuranz CC; Department of Physics and Astronomy, University of Rochester, Rochester, NY 14623, USA.
  • Rasmus AM; Laboratory for Laser Energetics, University of Rochester, Rochester, NY 14623, USA.
  • Klein SR; Department of Climate and Space Science and Engineering, University of Michigan, Ann Arbor, Michigan 48109, USA.
  • MacDonald MJ; Department of Climate and Space Science and Engineering, University of Michigan, Ann Arbor, Michigan 48109, USA.
  • Trantham MR; Department of Climate and Space Science and Engineering, University of Michigan, Ann Arbor, Michigan 48109, USA.
  • Fein JR; Department of Climate and Space Science and Engineering, University of Michigan, Ann Arbor, Michigan 48109, USA.
  • Belancourt PX; Department of Climate and Space Science and Engineering, University of Michigan, Ann Arbor, Michigan 48109, USA.
  • Young RP; Department of Nuclear Engineering and Radiation Science, University of Michigan, Ann Arbor, MI 48109, USA.
  • Keiter PA; Department of Climate and Space Science and Engineering, University of Michigan, Ann Arbor, Michigan 48109, USA.
  • Pollock BB; Department of Climate and Space Science and Engineering, University of Michigan, Ann Arbor, Michigan 48109, USA.
  • Park J; Department of Climate and Space Science and Engineering, University of Michigan, Ann Arbor, Michigan 48109, USA.
  • Hazi AU; Lawrence Livermore National Laboratories, Livermore, California 94550, USA.
  • Williams GJ; Laboratory for Laser Energetics, University of Rochester, Rochester, NY 14623, USA.
  • Chen H; Lawrence Livermore National Laboratories, Livermore, California 94550, USA.
  • Drake RP; Lawrence Livermore National Laboratories, Livermore, California 94550, USA.
Phys Rev Lett ; 122(22): 225001, 2019 Jun 07.
Article de En | MEDLINE | ID: mdl-31283266
ABSTRACT
The creation and disruption of inertially collimated plasma flows are investigated through experiment, simulation, and analytical modeling. Supersonic plasma jets are generated by laser-irradiated plastic cones and characterized by optical interferometry measurements. Targets are magnetized with a tunable B field with strengths of up to 5 T directed along the axis of jet propagation. These experiments demonstrate a hitherto unobserved phenomenon in the laboratory, the magnetic disruption of inertially confined plasma jets. This occurs due to flux compression on axis during jet formation and can be described using a Lagrangian-cylinder model of plasma evolution implementing finite resistivity. The basic physical mechanisms driving the dynamics of these systems are described by this model and then compared with two-dimensional radiation-magnetohydrodynamic simulations. Experimental, computational, and analytical results discussed herein suggest that contemporary models underestimate the electrical conductivity necessary to drive the amount of flux compression needed to explain observations of jet disruption.
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Texte intégral: 1 Collection: 01-internacional Base de données: MEDLINE Langue: En Journal: Phys Rev Lett Année: 2019 Type de document: Article Pays d'affiliation: États-Unis d'Amérique
Texte intégral
Ajouter à My VHL
Imprimer
XML
PubMed Links
Recherche sur Google

Texte intégral: 1 Collection: 01-internacional Base de données: MEDLINE Langue: En Journal: Phys Rev Lett Année: 2019 Type de document: Article Pays d'affiliation: États-Unis d'Amérique