Title from the title-page.

[References: p. 50 (4 tit.)]

The implantation of semiconductor materials in metals and alloys essentially extends the capabilities of modifying their superficial properties. However, the use of silicon or other semiconductor materials as a cathode in the existing designs of ion sources is complicated because of their low electric conductivity. The purpose of the given work was the development of a cathodic unit of an ion source where not only metals but also nonmetallic materials can be used as cathode materials to increase the stability of arc-firing and burning.

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