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Stagnation and disruption of wire array Z-pinch radiation sources on the Z pulsed power generator

IEEE Transactions on Plasma Science

Jones, Brent M.; Ampleford, David J.; Nielsen, D.S.; Coverdale, Christine A.; Jennings, Christopher A.; Cuneo, Michael E.

Magnetic implosions provide extremely intense soft X-ray radiation on the Z accelerator. Shock heating at stagnation provides temperatures that are capable of producing K-shell radiation from stainless steel plasma. Time-gated multicolor X-ray pinhole imaging is used to study stagnation and disruption in fast Z pinches. Magnetohydrodynamic instabilities are observed to grow, following peak X-ray power until the Z-pinch column disrupts well after the main power pulse. © 2006 IEEE.

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Total x-ray power improvement on recent wire array experiments on the Z machine

Jones, Michael; Ampleford, David J.; Cuneo, Michael E.; Jennings, Christopher A.; Jones, Brent M.; Lopez, Mike R.; Rochau, G.A.; Savage, Mark E.

Recent experiments on the refurbished Z-machine were conducted using large diameter stainless steel arrays which produced x-ray powers of 260 TW. Follow-up experiments were then conducted utilizing tungsten wires with approximately the same total mass with the hypothesis that the total x-ray power would increase. On the large diameter tungsten experiments, the x-ray power averaged over 300 TW and the total x-ray energy was greater than 2MJ. Different analysis techniques for inferring the x-ray power will be described in detail.

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Results 226–250 of 319
Results 226–250 of 319