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Properties of toroidal magnetic fields in axial plasma flow on the PF-1000U plasma focus facility

Published online by Cambridge University Press:  16 November 2020

V. I. Krauz Open the ORCID record for V. I. Krauz [Opens in a new window] ,
K. N. Mitrofanov ,
M. Paduch ,
K. Tomaszewski ,
A. Szymaszek ,
E. Zielinska ,
V. I. Pariev ,
V. S. Beskin Open the ORCID record for V. S. Beskin [Opens in a new window]  and
Ya. N. Istomin
V. I. Krauz*
Affiliation:
National Research Centre ‘Kurchatov Institute’, pl. Akademika Kurchatova 1, 123182Moscow, Russia
K. N. Mitrofanov
Affiliation:
Troitsk Institute for Innovation and Fusion Research, Pushkovykh St. 12, 108840Moscow, Troitsk, Russia
M. Paduch
Affiliation:
Institute of Plasma Physics and Laser Microfusion, Hery St. 23, 01-497Warsaw, Poland
K. Tomaszewski
Affiliation:
ACS Ltd., Hery St. 23, 01-497Warsaw, Poland
A. Szymaszek
Affiliation:
Institute of Plasma Physics and Laser Microfusion, Hery St. 23, 01-497Warsaw, Poland
E. Zielinska
Affiliation:
Institute of Plasma Physics and Laser Microfusion, Hery St. 23, 01-497Warsaw, Poland
V. I. Pariev
Affiliation:
P. N. Lebedev Physical Institute of the Russian Academy of Sciences, Leninsky Prospekt 53, Moscow119991, Russia
V. S. Beskin
Affiliation:
P. N. Lebedev Physical Institute of the Russian Academy of Sciences, Leninsky Prospekt 53, Moscow119991, Russia Moscow Institute of Physics and Technology, Institutsky Per., 9, Dolgoprudny141700, Russia
Ya. N. Istomin
Affiliation:
P. N. Lebedev Physical Institute of the Russian Academy of Sciences, Leninsky Prospekt 53, Moscow119991, Russia Moscow Institute of Physics and Technology, Institutsky Per., 9, Dolgoprudny141700, Russia
*
†Email address for correspondence: krauz_vi@nrcki.ru
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Abstract

This paper presents the results of studies of plasma flow parameters on the PF-1000U facility. A distinctive feature of this facility is the ability to create profiled initial gas distributions using gas puffs. In the experiments described, a combined system for filling the vacuum chamber with a working gas was used, in which an additional injection of various gases (deuterium, helium, neon and their mixtures) into the axial region of the chamber prefilled with deuterium was performed using a pulse valve. Thus, both the pinching processes and, accordingly, the generation of axial plasma flows and the conditions of their propagation in the background gas of the facility chamber were affected. Regimes with the generation of compact stable plasma formations propagating over long distances were found. The results obtained can be used in laboratory modelling of astrophysical jets from young stellar objects.

Keywords

plasma flowsplasma devicesastrophysical plasmas
Type
Research Article
Information
Journal of Plasma Physics , Volume 86 , Issue 6 , December 2020 , 905860607
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Copyright
Copyright © The Author(s), 2020. Published by Cambridge University Press

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References

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