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Article Dans Une Revue Physical Review Letters Année : 2007

Structural Evolution and Formation of High-Pressure Plasmas in X Pinches

Résumé

Two- and three-dimensional MHD simulations are used to provide a theoretical description of 2 wire molybdenum X-pinch experiments. The initial evolution from solid wires to the formation of supersonic jets and a central micro-Z pinch is found to result from the slow rate of wire ablation and from the distribution of the Lorentz force. The growth of m=0 instabilities triggers the formation of micron sized regions of intense x-ray emission with plasma pressures in the Gbar range. A simple analytical model is used to predict how the maximum density and temperature scale with material and current.
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Dates et versions

hal-03732538 , version 1 (30-07-2022)

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Jeremy P. Chittenden, Andrea Ciardi, C. A. Jennings, Sergey V. Lebedev, D. A. Hammer, et al.. Structural Evolution and Formation of High-Pressure Plasmas in X Pinches. Physical Review Letters, 2007, 98, pp.25003. ⟨10.1103/PhysRevLett.98.025003⟩. ⟨hal-03732538⟩
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