Generation of high-power submillisecond metal ion beams

A. I. Ryabchikov, D. O. Sivin

Tomsk Polytechnic University, Tomsk, Russia

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 $\mu$s and a power density reaching 10$^5$ W/cm$^2$. 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.

Received: 30.06.2022
Revised: 28.09.2022
Accepted: 29.09.2022

DOI: 10.21883/PJTF.2022.22.53800.19293

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