Hall effects and diamagnetic cavity collapse during a laser plasma cloud expands into a vacuum magnetic field

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Abstract

This paper describes the results of a laboratory experiment on the sub-Alfven expansion of a quasi-spherical laser plasma cloud into a vacuum magnetic field in the regime of nonmagnetized ions. The role of Hall fields and currents in the anomalously fast dynamics of the magnetic field during the collapse phase of a diamagnetic cavity is considered. Detailed spatial measurements of the azimuthal Hall fields configuration are demonstrated and their relationship to diamagnetic cavity collapse is determined. As a result of the experiment, data were obtained confirming the hypothesis about the transfer of the main magnetic field by the movement of electrons associated with Hall currents.

About the authors

А. А. Chibranov

Institute of Laser Physics Siberian Branch of the Russian Academy of Sciences

Author for correspondence.
Email: chibranov2013@yandex.ru
Russian Federation, Novosibirsk

I. F. Shaikhislamov

Institute of Laser Physics Siberian Branch of the Russian Academy of Sciences

Email: chibranov2013@yandex.ru
Russian Federation, Novosibirsk

А. G. Berezutskiy

Institute of Laser Physics Siberian Branch of the Russian Academy of Sciences

Email: chibranov2013@yandex.ru
Russian Federation, Novosibirsk

V. G. Posukh

Institute of Laser Physics Siberian Branch of the Russian Academy of Sciences

Email: chibranov2013@yandex.ru
Russian Federation, Novosibirsk

P. А. Trushin

Institute of Laser Physics Siberian Branch of the Russian Academy of Sciences

Email: chibranov2013@yandex.ru
Russian Federation, Novosibirsk

Yu. P. Zakharov

Institute of Laser Physics Siberian Branch of the Russian Academy of Sciences

Email: chibranov2013@yandex.ru
Russian Federation, Novosibirsk

I. B. Miroshnichenko

Institute of Laser Physics Siberian Branch of the Russian Academy of Sciences

Email: chibranov2013@yandex.ru
Russian Federation, Novosibirsk

М. S. Rumenskikh

Institute of Laser Physics Siberian Branch of the Russian Academy of Sciences

Email: chibranov2013@yandex.ru
Russian Federation, Novosibirsk

V. А. Terekhin

Russian Federal Nuclear Center, All-Russian Research Institute of Experimental Physics

Email: chibranov2013@yandex.ru
Russian Federation, Sarov

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