Abstract
The possibility of using one grid electrode in the form of a part of a sphere for extraction from a free plasma boundary and focusing of metal ions is shown for the first time using titanium ions as an example to form a pulsed beam with a duration of 500 μs and a power density reaching 105 W/cm2. The results of studying the influence of the amplitude of the accelerating voltage in the range of 9-30 kV and the size of the grid cells on the efficiency of space charge neutralization and ion beam focusing are presented. Keywords: metal ions, vacuum arc plasma, submillisecond beams, high power density.
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