Photomultiplier Tubes

Some articles on photomultiplier tubes, tubes:

Science Of Photography - Contribution To Noise (grain) - Photomultiplier Tubes
... Photomultiplier tubes are vacuum phototubes that amplify light by accelerating the photoelectrons to knock more electrons free from a series of electrodes ...
Monopole, Astrophysics And Cosmic Ray Observatory
... The active elements of MACRO were liquid scintillator and streamer tubes, optimized for high resolution tracking and timing ... At opposing ends of the chamber were a pair of photomultiplier tubes ... Photomultiplier tubes contain a number of small charged "plates." They look like flood lights, but they are collectors that can take a handful of photons and "multiply" them ...