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Simulations of the formation of strongly coupled plasmas using pulsed power

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4 Author(s)
R. K. Keinigs ; Los Alamos Nat. Lab., NM, USA ; B. Wood ; C. Munson ; R. J. Trainor

Summary form only given. One experimental campaign planned for the pulse power facility, Atlas, will be devoted to the investigation of strongly-coupled plasma (SCP) effects on transport phenomena and equations-of-state in high-Z materials. Methods for forming strongly coupled plasmas using the pulsed-power facility, Atlas, are currently under investigation. For SCP experiments being planned, a metal plasma (/spl rho///spl rho//sup 0//spl sim/0.1, and T/spl sim/1-2 eV) imbedded in gas or foam (/spl rho//spl sim/.05 /spl rho//sub metal/, T/spl sim/0.5 eV) can produce initial values of /spl Gamma/ (coupling parameter) between 2-20. One approach to forming a plasma with the desired properties involves using an auxiliary capacitor bank to ohmically heat a thin metal shell to vaporization. The expansion of the plasma is impeded by the imbedding gas. Both one and two-dimensional magnetohydrodynamic models are being employed to characterize the plasma and determine the tamping conditions required for its confinement. Results for a titanium plasma, the confinement dynamics for this system, and values obtained for /spl Gamma/ will be presented. Means for experimentally diagnosing such plasmas will also be discussed.

Published in:

Plasma Science, 1999. ICOPS '99. IEEE Conference Record - Abstracts. 1999 IEEE International Conference on

Date of Conference:

24-24 June 1999