title: Modifying wire-array Z-pinch ablation structure using coiled arrays.
abstract: 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.
authors: Blackett Laboratory, Imperial College, London SW7 2BW, United Kingdom.
authors: G N
authors: GN
authors: Hall
authors: J P
authors: JP
authors: Chittenden
authors: S N
authors: SN
authors: Bland
authors: S V
authors: SV
authors: Lebedev
authors: S C
authors: SC
authors: Bott
authors: C
authors: C
authors: Jennings
authors: J B A
authors: JB
authors: Palmer
authors: F
authors: F
authors: Suzuki-Vidal