Modifying Wire-Array Z-Pinch Ablation Structure Using Coiled Arrays

Journal Article · Fri Feb 15 04:00:00 EST 2008 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.100.065003· OSTI ID:21024766

Hall, G N; Chittenden, J P; Bland, S N; Lebedev, S V; Bott, S C; Jennings, C; Palmer, J B. A.; Suzuki-Vidal, F ^[1]

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1. Blackett Laboratory, Imperial College, London SW7 2BW (United Kingdom)

A new wire-array configuration has been used to control the modulation of ablated plasma flow for the first time. Cylindrical aluminum coiled arrays, in which each straight wire is replaced with a single helix, were driven by a 1 MA, 240 ns current pulse. Ablated plasma is directed away from the coiled wire cores in a manner that can be understood in terms of Lorentz forces that arise from a complex current path modeled by 3D magnetohydrodynamic simulations. Outside the diameter of the helix, the flow of ablated plasma is axially modulated at the wavelength of the coil.

• OSTI ID: 21024766
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 6 Vol. 100; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ABLATION
ALUMINIUM
CYLINDRICAL CONFIGURATION
LORENTZ FORCE
MODULATION
PLASMA
PULSES
SIMULATION
WAVELENGTHS
WIRES