FIELD: acceleration equipment. SUBSTANCE: hollow no-filament cathode is positioned in gap between intermediate electrode and anode. Contraction of plasma in region of emission hole is performed not by magnetic field but thanks to electrical processes emerging within hollow cathode when flux of electrons is let pass through it, Due to this value of current and phase density of beam of ions across outlet of source increase, working pressure of gas in discharge chamber diminishes, energetic value of ions reduces, design of source is simplified and operational reliability of duoplasmatron rises. EFFECT: simplified design and enhanced operational reliability of duoplasmatron. 1 dwg
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