The interaction of2j rise (n-3 x 1013 cm-3), fast (v 2 4 x 107 cm/sec) plasma stream with a trans-M % 2 s• S fi,&525 '0 verse magnetic field is studied experimentally by .

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Hall and two-temperature magnetohydrodynamic simulation of deuterium-fiber-initiated Z pinchesDeuterium-fiber-initiated Z-pinch experiments have been simulated using a two-dimensional resistive magnetohydrodynamic model, which includes many important experimental details, such as "cold-start" initial conditions, thermal conduction, radiation, actual discharge current versus time, and grids of sufficient size and resolution to allow realistic development of the plasma. When the fiber becomes fully ionized (at a time depending on current ramp and fiber thickness), the simulations show rapidly developing m =0 instabilities, which originated in the corona surrounding the fiber, drive intense nonuniform heating and rapid expansion of the plasma column. Diagnostics generated from the simulation results, such as shadowgrams and interferograms, are in good agreement with experiment.

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