Abstract
Results are presented from measurements of the distributions of the azimuthal magnetic field in aluminum, copper, molybdenum, tungsten and other wire arrays electrically imploded at currents of up to 3 MA in the Angara-5-1 facility. It is shown that the time during which the magnetic field of the current pulse reaches the array axis depends on the material of the wires or wire coating. The current of the precursor formed on the array axis before the implosion of the main load mass is measured. It is shown that the penetration of the load material with the frozen-in magnetic field into a polymer (agar-agar) foam liner is drastically different from that in the case of a wire array. It is found that the rate of current transfer to the array axis is maximum for tungsten wire arrays. The rates of plasma production during implosion of loads made of different materials are compared.
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Original Russian Text © V.V. Aleksandrov, V.A. Barsuk, E.V. Grabovski, A.N. Gritsuk, G.G. Zukakishvili, S.F. Medovshchikov, K.N. Mitrofanov, G.M. Oleinik, P.V. Sasorov, 2009, published in Fizika Plazmy, 2009, Vol. 35, No. 3, pp. 229–250.
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Aleksandrov, V.V., Barsuk, V.A., Grabovski, E.V. et al. Studies of penetration of the magnetic field into electrically imploded loads in the Angara-5-1 facility. Plasma Phys. Rep. 35, 200–221 (2009). https://doi.org/10.1134/S1063780X09030039
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DOI: https://doi.org/10.1134/S1063780X09030039