Seeded perturbations in wire array z-pinches.
- University of Nevada, Reno, NV
- Mission Research Corporation, Albuquerque, NM
- Imperial College, London, UK
- Los Alamos National Laboratory, Los Alamos, NM
The impact of 3D structure on wire array z-pinch dynamics is a topic of current interest, and has been studied by the controlled seeding of wire perturbations. First, Al wires were etched at Sandia, creating 20% radial perturbations with variable axial wavelength. Observations of magnetic bubble formation in the etched regions during experiments on the MAGPIE accelerator are discussed and compared to 3D MHD modeling. Second, thin NaF coatings of 1 mm axial extent were deposited on Al wires and fielded on the Zebra accelerator. Little or no axial transport of the NaF spectroscopic dopant was observed in spatially resolved K-shell spectra, which places constraints on particle diffusivity in dense z-pinch plasmas. Finally, technology development for seeding perturbations is discussed.
- Research Organization:
- Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC04-94AL85000
- OSTI ID:
- 964168
- Report Number(s):
- SAND2004-5744C; TRN: US0904108
- Resource Relation:
- Conference: Proposed for presentation at the 46th Annual Meeting of the Division of Plasma Physics, APS DPP04 held November 15-19, 2005 in Savannah, GA.
- Country of Publication:
- United States
- Language:
- English
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Seeded perturbations in wire array Z-Pinches.
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