First experiments probing the collision of parallel magnetic fields using laser-produced plasmas | Zendy

M. J. Rosenberg | Zendy; C. K. Li | Zendy; W. Fox | Zendy; I. V. Igumenshchev | Zendy; F. H. Séguin | Zendy; R. P. J. Town | Zendy; J. A. Frenje | Zendy; C. Stöeckl | Zendy; V. Yu. Glebov | Zendy; R. D. Petrasso | Zendy

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First experiments probing the collision of parallel magnetic fields using laser-produced plasmas

Author(s) -

M. J. Rosenberg,

C. K. Li,

W. Fox,

I. V. Igumenshchev,

F. H. Séguin,

R. P. J. Town,

J. A. Frenje,

C. Stöeckl,

V. Yu. Glebov,

R. D. Petrasso

Publication year - 2015

Publication title -

physics of plasmas

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.75

H-Index - 160

eISSN - 1089-7674

pISSN - 1070-664X

DOI - 10.1063/1.4917248

Subject(s) - physics , magnetic field , plasma , magnetic flux , collision , magnetic reconnection , context (archaeology) , flux (metallurgy) , atomic physics , collision frequency , computational physics , laser , flux tube , nuclear physics , optics , paleontology , computer security , materials science , quantum mechanics , computer science , metallurgy , biology

Novel experiments to study the strongly-driven collision of parallel magnetic fields in β ∼ 10, laser-produced plasmas have been conducted using monoenergetic proton radiography. These experiments were designed to probe the process of magnetic flux pileup, which has been identified in prior laser-plasma experiments as a key physical mechanism in the reconnection of anti-parallel magnetic fields when the reconnection inflow is dominated by strong plasma flows. In the present experiments using colliding plasmas carrying parallel magnetic fields, the magnetic flux is found to be conserved and slightly compressed in the collision region. Two-dimensional (2D) particle-in-cell simulations predict a stronger flux compression and amplification of the magnetic field strength, and this discrepancy is attributed to the three-dimensional (3D) collision geometry. Future experiments may drive a stronger collision and further explore flux pileup in the context of the strongly-driven interaction of magnetic fields.United States. Department of Energy (Grant DE-NA0001857

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