Abstract
We report results of the first investigation of dusty plasma formed in glow discharge in the region of a strongly inhomogeneous magnetic field with a field gradient estimated at 2 × 103 G/cm, where a stable magnetic trap has been found. Geometric characteristics of the dusty plasma structure were determined, and the angular velocity of plasma rotation in several sections perpendicular to the discharge axis was measured. A mechanism of the dusty plasma structure rotation is proposed. Quantitative estimations made in the framework of this mechanism agree with the obtained experimental data.
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ACKNOWLEDGMENTS
Materials and equipment for this work were partly obtained in the framework of the Program of Upgrading the Material and Technical Basis of Scientific Research at St. Petersburg State University (Section “Polymeric Particles in Dusty Plasma”).
Funding
This work was supported in part by the Russian Science Foundation, project no. 18-72-10019).
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Translated by P. Pozdeev
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Karasev, V.Y., Dzlieva, E.S., Pavlov, S.I. et al. Dusty Plasma in a Strongly Inhomogeneous Magnetic Field. Tech. Phys. Lett. 46, 371–373 (2020). https://doi.org/10.1134/S1063785020040227
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DOI: https://doi.org/10.1134/S1063785020040227