Effect of the initial plasma parameters on the structure of the current sheets developing in two-dimensional magnetic fields with a null line

Authors: Ostrovskaya, G.1; Frank, A.2; Bogdanov, S.

Source: Technical Physics, Volume 55, Number 7, July 2010 , pp. 936-945(10)

Publisher: MAIK Nauka/Interperiodica

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Abstract:

The effect of the initial plasma parameters on the structure of the plasma of the current sheets that form in two-dimensional magnetic fields with a null line is studied by holographic interferometry. The evolution of the plasma sheets that develop in an initial low-density plasma, where a gas is mainly ionized by a pulse current passing through the plasma and initiating the formation of a current sheet, has been comprehensively studied for the first time. At the early stage of evolution, the spatial structure of such a plasma sheet differs substantially from the classic current sheets forming in a dense plasma. Nevertheless, extended plasma sheets with similar parameters form eventually irrespective of the initial plasma density.

Document Type: Research Article

DOI: http://dx.doi.org/10.1134/S1063784210070042

Affiliations: 1: Email: galya_ostr@mail.ru 2: Email: annfrank@fpl.gpi.ru

Publication date: July 1, 2010

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