Studying the Generation Stage of a Plasma Jet in a Plasma Focus Discharge
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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.
Keywordsplasma focus plasma jets Z-pinches laser interferometry
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- 3.D. P. Petrov, et al., in Plasma Physics and the Problem of Controlled Thermonuclear Reactions, Ed. by M. A. Leontovich (Akad. Nauk SSSR, Moscow, 1958; Pergamon, New York, 1960), Vol.4.Google Scholar