INFLUENCE OF EXTERNAL FACTORS ON THE FORMATION OF METALPUFF ZPINCHES WITH THE OUTER PLASMA SHELL
Authors
V.A. Kokshenev
Institute of High Current Electronics, Siberian Branch of Russian Academy of Sciences
N.E. Kurmaev
Institute of High Current Electronics, Siberian Branch of Russian Academy of Sciences
A.V. Shishlov
Institute of High Current Electronics, Siberian Branch of Russian Academy of Sciences
R.K. Cherdizov
Institute of High Current Electronics, Siberian Branch of Russian Academy of Sciences
A.G. Russkich
Institute of High Current Electronics, Siberian Branch of Russian Academy of Sciences
Keywords:
zpinch, metal-puff, current sheet
Abstract
The possibility of increasing the energy supplied to an aluminum metalplasma puff with outer plasma shell by changing the propagation conditions of the arc source plasma in the interelectrode gap has been studied. In the experiment, the transparency of the cathode grid was varied, onto which the plasma flow of the arc discharge, which is used to form the metalplasma puff, is injected. It was found that when the grid transparency changed from 85% to a solid electrode, the metalpuff mass increased by ~3 times, and the energy supplied to the liner by ~1.7 times and reached 100 kJ/cm. The decisive influence of the outer plasma shell on the formation of a compact and azimuthally uniform current sheet, which stabilizes the process of metalpuff compression from large diameters in the microsecond regime, is shown
