electron gun

Definitions

General Science

Computing

  • noun a part of a CRT that produces a beam of electrons.

Electronics

  • A device which produces, and usually controls, an electron beam. Used, for instance, in CRTs, klystrons, electron microscopes, lasers, and for machining or drilling.
  • An electron gun (1) in a CRT. It incorporates a cathode which emits the electrons, a control grid, and accelerating and focusing electrodes.
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