Title :
Nested array dynamics from Ni-clad Ti - Al wire array Z pinches
Author :
Coverdale, C.A. ; Cuneo, M.E. ; Jennings, C. ; Jones, B. ; Deeney, C. ; LePell, P.D. ; Maron, Y.
Author_Institution :
Sandia Nat. Labs., Albuquerque, NM, USA
Abstract :
Summary form only given. Mixed, nested wire arrays with 40 mm and 50 mm outer array diameters were used to investigate the interaction of the arrays and assess radiative characteristics. These arrays were fielded with one array as Al:Mg (either the inner or the outer array) and the other array as Ni-clad Ti (the outer or inner array, with respect to location of the Al:Mg). In all the arrays, the mass and radius ratio of the outer:inner was 2:1. The wire number ratio was also 2:1 in some cases, but the Al:Mg wire number was increased in some loads.This presentation will focus on the analysis of the emitted radiation (in multiple photon energy bins), which has provided insight into the nested array dynamics. In addition, the radiated powers, yields, spectra, and pinhole images have been used to infer plasma conditions and spatial locations for each radiating plasma species. For each species, the initial location of the mass impacts its final plasma location and temperature. Differences were also noted for the 40mm vs. 50mm diameter arrays.
Keywords :
Z pinch; aluminium alloys; claddings; nickel; plasma diagnostics; plasma temperature; titanium alloys; Ni-TiAl; multiple photon energy bins; nested array dynamics; pinhole images; plasma location; plasma temperature; radiating plasma species; radiative characteristics; size 40 mm; size 50 mm; spatial locations; wire array Z pinches; Arrays; Wires;
Conference_Titel :
Plasma Science (ICOPS), 2011 Abstracts IEEE International Conference on
Conference_Location :
Chicago, IL
Print_ISBN :
978-1-61284-330-8
Electronic_ISBN :
0730-9244
DOI :
10.1109/PLASMA.2011.5993251