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Dust vortices, clouds, and jets in nuclear-induced plasmas

  • Plasma, Gases
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Abstract

The collective movement of dust particles in a plasma formed during deceleration of decay products of californium nuclei in neon is investigated experimentally. For the first time, compact vortex structures containing a large number of coagulating dust particles and dense dust clouds evolving in time are observed. Dust formations have clearly defined boundaries and particles in them form ordered liquid-type structures. Under steady-state conditions, dust structures exist from several minutes to hours. An increase in the voltage applied to the high-voltage electrode leads to the formation of dust particle jets. A change in the electric field configuration transforms the structures from one type to another. A strong recombination of electrons and ions at dust particles is observed. The momentum transfer from ions drifting in an external field to gas molecules is studied using the Monte Carlo method. It is shown that the transferred momentum is so large that it may cause a gas flow. The characteristic features of vortex flow in neon and in air are explained.

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Authors and Affiliations

  1. Institute of High Energy Densities, Institute of High Temperatures Scientific Association (IVTAN), Russian Academy of Sciences, Izhorskaya ul. 13/19, Moscow, 127412, Russia

    V. I. Vladimirov, L. V. Deputatova, A. P. Nefedov & V. E. Fortov

  2. Leipunskii State Research Center “Institute of Physics and Power Engineering,”, pl. Bondarenko 1, Obninsk, Kaluzhskaya oblast, 249020, Russia

    V. A. Rykov & A. V. Khudyakov

Authors
  1. V. I. Vladimirov
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  2. L. V. Deputatova
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  3. A. P. Nefedov
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  4. V. E. Fortov
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  5. V. A. Rykov
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  6. A. V. Khudyakov
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Translated from Zhurnal Éksperimental’no\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \) i Teoretichesko\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \) Fiziki, Vol. 120, No. 2, 2001, pp. 353–365.

Original Russian Text Copyright © 2001 by Vladimirov, Deputatova, Nefedov, Fortov, Rykov, Khudyakov.

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Vladimirov, V.I., Deputatova, L.V., Nefedov, A.P. et al. Dust vortices, clouds, and jets in nuclear-induced plasmas. J. Exp. Theor. Phys. 93, 313–323 (2001). https://doi.org/10.1134/1.1402732

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  • DOI: https://doi.org/10.1134/1.1402732

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