Abstract
Experiments on studying the stability of Z-pinch compression were carried out at a current of 450 kA with a build-up time of 450 ns. The plasma shell of the pinches was formed by evaporating the electrode material in the process of vacuum arc burning. The Rayleigh–Taylor (RT) instabilities were suppressed using the regime of arc combustion on the surface of one of the electrodes in the high-voltage gap in which the pinch was positioned. As a result of free plasma discharge, the radial density distribution was formed such that the plasma concentration increased from the outer boundary to the shell axis. The experiments demonstrated that such an initial radial density distribution almost completely suppresses of the RT instability.
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References
M. G. Haines, Plasma Phys. Control. Fusion 53, 093001 (2011).
A. V. Branitskii, V. V. Aleksandrov, E. V. Grabovskii, et al., Plasma Phys. Rep. 25, 976 (1999).
S. A. Slutz, M. C. Herrmann, R. A. Vesey, et al., Phys. Plasmas 17, 056303 (2010).
A. L. Velikovich, F. L. Cochran, and J. Davis, Phys. Rev. Lett. 77, 853 (1996).
R. B. Baksht, I. M. Datsko, A. A. Kim, et al., Plasma Phys. Rep. 21, 907 (1995).
A. Yu. Labetsky, R. B. Baksht, V. I. Oreshkin, et al., IEEE Trans. Plasma Sci. 30 (2), 524 (2002).
V. I. Oreshkin, Tech. Phys. Lett. 39, 669 (2013).
A. G. Rousskikh, A. S. Zhigalin, V. I. Oreshkin, et al., Phys. Plasmas 18, 092707 (2011).
A. G. Rousskikh, R. B. Baksht, A. S. Zhigalin, et al., Plasma Phys. Rep. 38, 595 (2012).
R. B. Baksht, A. G. Rousskikh, A. S. Zhigalin, and V. I. Oreshkin, IEEE Trans. Plasma Sci. 41 (1), 182 (2013).
R. B. Baksht, V. I. Oreshkin, and A. G. Rousskikh, Phys. Plasmas 20, 082701 (2013).
A. Anders and G. Yu. Yushkov, Appl. Phys. Lett. 80, 2457 (2002).
V. I. Afonin, Plasma Phys. Rep. 27, 576 (2001).
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Original Russian Text © A.S. Zhigalin, A.G. Rousskikh, R.B. Baksht, S.A. Chaikovsky, N.A. Labetskaya, V.I. Oreshkin, 2015, published in Pis’ma v Zhurnal Tekhnicheskoi Fiziki, 2015, Vol. 41, No. 11, pp. 86–93.
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Zhigalin, A.S., Rousskikh, A.G., Baksht, R.B. et al. Suppression of Rayleigh-Taylor instabilities in Z-pinches. Tech. Phys. Lett. 41, 554–556 (2015). https://doi.org/10.1134/S1063785015060152
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DOI: https://doi.org/10.1134/S1063785015060152