multialkali photocathode

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Photocathode — In a photomultiplier or Phototube, a photocathode is a negatively charged electrode coated with a photosensitive compound. When this is struck by light, electrons are emitted due to the photoelectric effect.Although a plain metallic cathode will… … Wikipedia
Photomultiplier — tubes (photomultipliers or PMTs for short), members of the class of vacuum tubes, and more specifically phototubes, are extremely sensitive detectors of light in the ultraviolet, visible, and near infrared ranges of the electromagnetic spectrum.… … Wikipedia
Suboxide — Suboxides are a class of oxides wherein the electropositive element is in excess relative to the “normal” oxides.Simon, A. ”Group 1 and 2 Suboxides and Subnitrides Metals with Atomic Size Holes and Tunnels” Coordination Chemistry Reviews 1997,… … Wikipedia

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