A. P. Artemov, A. V. Fedyunin, S. A. Chaikovskii, V. I. Oreshkin, I. V. Lavrinovich, N. A. Ratakhin, “Determining thermodynamic parameters of aluminum X-pinch plasma”, Pisma v Zhurnal Tekhnicheskoi Fiziki, 2012, Volume 38, Issue 24,Pages <nobr>1

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Determining thermodynamic parameters of aluminum X-pinch plasma

A. P. Artemov, A. V. Fedyunin, S. A. Chaikovskii, V. I. Oreshkin, I. V. Lavrinovich, N. A. Ratakhin

Institute of High Current Electronics, Siberian Branch of the Russian Academy of Sciences, Tomsk

Abstract: Experiments on a compact pulsed power generator with an amplitude of 200 kA and a 180-ns front width loaded on an X-pinch consisting of four aluminum wires with a diameter of 35 $\mu$m have been carried out. Experimental data and the results of calculations performed in the framework of an impact-radiation model have been used to determine parameters (temperature, density, linear mass) of the X-pinch hot spot at the moment of maximum compression. It is established that (i) a pulse of soft X-ray emission from the X-pinch is generated upon almost complete ejection of substance from the hot spot and (ii) hot-spot formation in the X-pinch proceeds under conditions close to the Bennett equilibrium.

Received: 06.07.2012