Mechanisms for the formation and transport of ion fluxes in the plasma of a high-current vacuum spark |
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Authors: | A. N. Dolgov N. V. Zemchenkova N. A. Klyachin D. E. Prokhorovich |
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Affiliation: | 1.Moscow Engineering Physics Institute,Moscow,Russia |
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Abstract: | The processes of ion flux formation in the plasma of a high-current vacuum spark were investigated experimentally. It is shown that multicharged ions are generated in the neck formed in the erosion products of the inner electrode. The plasma escaping from the neck region plays a role of a piston dragging particles of the cold peripheral plasma into ambient space. As the discharge current increases, the flux of the evaporated electrode material grows, the degree of ionization of the plasma produced decreases, and the efficiency of plasma heating caused by the pinching effect is reduced. |
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