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Nikolai V Chaika

Boris Alexeevich Movchan

Viktor A Timashov

An electron gun comprises a linear thermionic cathode having part of its emitting surface facing an accelerating anode, and the rest of the emitting surface separated by a gap from a cathode-adjacent focusing electrode. The cathode-adjacent focusing electrode is made of two portions spaced apart. On the opposite end surfaces of these portions, there is attached a pair of flat current-conducting springs whose other ends are connected to leads. The other end surfaces of these portions accommodate cathode holders and have a pair of flat springs attached thereto, the other ends of the pair of flat springs being connected to the insulator of the electron gun housing. The pairs of flat springs attached to different portions of the focusing electrode deflect towards each other. The proposed electron gun increases the stability of its electron-optical parameters.

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Kyiv, Ukraine

Nikolai V Chaika