electron gun
electron gun
An electron beam generator. An electron beam is produced by emitting electrons from the cathode and by accelerating the electrons towards the anode.
The electron beam is accelerated up to a designated energy. Depending on the mechanism of the emission of electrons, there are three types of electron guns; 1) thermionic-emission gun, 2) field-emission electron gun (FEG) and 3) Schottky-emission electron gun.
Term(s) with "electron gun" in the description


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