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Phototube

 Home Physics Concepts in physics Physical phenomena Vacuum Vacuum tubes
 0 By others on same topic  0 Discussions  1970-01-01  See my version
A phototube, often referred to as a photoelectric tube or photomultiplier tube (PMT), is a type of electronic device that detects and measures light. It operates based on the photoelectric effect, where photons striking the surface of a photosensitive material (such as a photocathode) release electrons.

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