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Photonics Buyers' Guide / Photocathodes
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Photocathodes

A photocathode is an electrode used to release photoelectric emission when irradiated, making it then the irradiated negative electrode of a phototube.


The Photonics Buyers' Guide is a comprehensive resource for verified providers of Photocathodes. Profiles and contact information for manufacturers and suppliers are provided by the companies and verified by our editors. If you have updated information about any of the organizations listed, please contact us.
Glossary
  • photocathode An electrode used to release photoelectric emission when irradiated, making it then the irradiated negative electrode of a phototube.
  • phototube An electron tube having a photocathode for the emission of a photoelectric current.
  • photoelectric effect The emission of an electron from a surface that occurs when a photon impinges upon the surface and is absorbed. This effect is the means by which photons may be detected.
photocathodesphoto-cathodesnegatively charged electrodephotomultiplierphototubephotonphotoelectric effectradiant energylight detectionphotosensitivephototubelight exposure
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