Title :
PPPS-2013: Interactions of plasma ablation flows in wire array Z-pinches
Author :
Swadling, G.F. ; Lebedev, S.V. ; Niasse, N. ; Chittenden, J.P. ; Hall, G.N. ; Suzuki-Vidal, F. ; Burdiak, G. ; Harvey-Thompson, A.J. ; Bland, Simon N. ; de Grouchy, P. ; Khoory, E. ; Pickworth, L. ; Skidmore, Jeffrey ; Suttle, L. ; Bennett, Mark
Author_Institution :
Imperial Coll. London, London, UK
Abstract :
Summary form only given. We present the results of experiments investigating the interactions of ablations streams in Aluminium and tungsten wire array z-pinches. These experiments were carried out on the 1.4MA, 240ns MAGPIE generator at Imperial College London. The primary diagnostic used for this study was an end-on aligned, two colour, Mach-Zehnder imaging interferometer. In aluminium arrays, the interactions of the ablation flows produces a dense network of oblique shocks. Measurements of the geometry of these shocks allows us to place limits on the plasma parameters of the flows. In tungsten arrays the data shows a prolonged period of collisionless flow. No shock structures were observed, the flow densities varied smoothly between the ablation streams and the inter-wire regions.
Keywords :
Mach-Zehnder interferometers; Z pinch; aluminium; plasma diagnostics; plasma flow; plasma shock waves; tungsten; Al; MAGPIE generator; Mach-Zehnder imaging interferometer; W; ablation streams; collisionless flow; current 1.4 MA; end-on aligned imaging interferometer; flow densities; inter-wire regions; oblique shock dense network; plasma ablation flows; plasma parameters; shock geometry; time 240 ns; two colour imaging interferometer; wire array Z-pinches; Aluminum; Arrays; Educational institutions; Electric shock; Plasmas; Tungsten; Wires;
Conference_Titel :
Plasma Science (ICOPS), 2013 Abstracts IEEE International Conference on
Conference_Location :
San Francisco, CA
DOI :
10.1109/PLASMA.2013.6633171
