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Formation and structure of a current sheet in pulsed-power driven magnetic reconnection experiments

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Title: Formation and structure of a current sheet in pulsed-power driven magnetic reconnection experiments
Authors: Hare, JD
Lebedev, SV
Suttle, LG
Loureiro, NF
Ciardi, A
Burdiak, GC
Chittenden, JP
Clayson, T
Eardley, SJ
Garcia, C
Halliday, JWD
Niasse, N
Robinson, T
Smith, RA
Stuart, N
Suzuki-Vidal, F
Swadling, GF
Ma, J
Wu, J
Item Type: Journal Article
Abstract: We describe magnetic reconnection experiments using a new, pulsed-power driven experimental platform in which the inflows are super-sonic but sub-Alfv\'enic.The intrinsically magnetised plasma flows are long lasting, producing a well-defined reconnection layer that persists over many hydrodynamic time scales.The layer is diagnosed using a suite of high resolution laser based diagnostics which provide measurements of the electron density, reconnecting magnetic field, inflow and outflow velocities and the electron and ion temperatures.Using these measurements we observe a balance between the power flow into and out of the layer, and we find that the heating rates for the electrons and ions are significantly in excess of the classical predictions. The formation of plasmoids is observed in laser interferometry and optical self-emission, and the magnetic O-point structure of these plasmoids is confirmed using magnetic probes.
Issue Date: 22-Sep-2017
Date of Acceptance: 3-Sep-2017
URI: http://hdl.handle.net/10044/1/52202
DOI: https://dx.doi.org/10.1063/1.4986012
ISSN: 1070-664X
Publisher: AIP Publishing
Journal / Book Title: Physics of Plasmas
Volume: 24
Copyright Statement: © 2017 The Authors. Published by AIP Publishing.
Sponsor/Funder: U.S Department of Energy
Engineering & Physical Science Research Council (EPSRC)
U.S Department of Energy
Funder's Grant Number: 675350-9958
Keywords: physics.plasm-ph
0202 Atomic, Molecular, Nuclear, Particle And Plasma Physics
0201 Astronomical And Space Sciences
0203 Classical Physics
Fluids & Plasmas
Notes: 14 pages, 12 figures. Accepted for publication in Physics of Plasmas
Article Number: 102703
Appears in Collections:Physics
Plasma Physics
Faculty of Natural Sciences