Studies of Implosion and Radiative Properties of Tungsten Planar Wire Arrays on Michigan’s Linear Transformer Driver Pulsed-Power Generator

The influences of the prepulse current on the implosion dynamics of planar wire array were investigated. The time-delay between the prepulse current and the main current ( Tdelay) was able to be controlled manually based on the double pulse current generator “Qin-1.” In the precondition stage by the prepulse current, the corona plasma, aluminum vapor, and residual wire cores formed during the explosion of the wires, and ∼40% (±10%) mass of the wires was in a gaseous state at ∼425 ns after the prepulse. After the main pulse was applied, the low-density corona plasma was first imploded and then collided with the aluminum vapor and residual dense cores. Then, the further implosion of the preconditoned wires closely related to their mass distribution, which was determined by the duration of Tdelay. The residual dense wire cores had a significant impact on the implosion when Tdelay was ∼200 ns. When Tdelay increased to ∼> 500 ns, the mass distribution gradually became uniform, and the implosion of the preconditioned wires showed no ablation and no trailing mass.

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Characteristic Effects of Pulsed Power Generators of Different Architecture on the Implosion Dynamics of Mid-Atomic-Number Double Planar Wire Arrays

Butcher

Kantsyrev

Safronova

et al. 2022

IEEE Trans. Plasma Sci.

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Studies of Implosion and Radiative Properties of Tungsten Planar Wire Arrays on Michigan’s Linear Transformer Driver Pulsed-Power Generator

Cited by 3 publications

References 25 publications

Load dynamics of double planar foil liners and double planar wire arrays on the UM MAIZE LTD generator

Load dynamics of double planar foil liners and double planar wire arrays on the UM MAIZE LTD generator

Experimental study of the dynamics of planar wire array Z-pinch preconditioned by a controlled prepulse current

Characteristic Effects of Pulsed Power Generators of Different Architecture on the Implosion Dynamics of Mid-Atomic-Number Double Planar Wire Arrays

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