Abstract
A dense compact plasmoid generated at the pinch collapse stage is revealed in a plasma focus discharge by laser optical methods. The initial size of the plasmoid is ~1 mm, its electron density is more than 2 × 1019 cm–3, and the plasmoid propagates along the axis from the anode at an average velocity of more than 107 cm/s. A shock wave is generated in the residual argon plasma during the motion of the bunch, its density decreases to 1018 cm–3 at a distance of 3 cm from its place of generation, and the plasmoid expands by 3–5 times and almost merges together with the leading edge of the shock wave.
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Original Russian Text © S.N. Polukhin, A.E. Gurei, V.Ya. Nikulin, E.N. Peregudova, P.V. Silin, A.M. Kharrasov, 2016, published in Yadernaya Fizika i Inzhiniring, 2016, Vol. 7, No. 5, pp. 458–461.
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Polukhin, S.N., Gurei, A.E., Nikulin, V.Y. et al. Studying the Generation Stage of a Plasma Jet in a Plasma Focus Discharge. Phys. Atom. Nuclei 80, 1701–1703 (2017). https://doi.org/10.1134/S106377881711014X
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DOI: https://doi.org/10.1134/S106377881711014X