crossover
crossover
An electron beam emitted from the cathode is converged by an electrostatic acceleration lens in the electron gun, and then forms the minimum cross section ahead of the cathode. The minimum cross section is termed a "crossover." The crossover is formed in the case of an electron gun fitted with a conventional tungsten emitter or a LaB6 tip. The brightness of the electron gun refers to that of the crossover.
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Term(s) with "crossover" in the description
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