Source: /cirosantilli/photomultiplier-tube

= Photomultiplier tube
{tag=Photonics equipment}
{wiki}

Can be used to <single photon production and detection experiments>[detect single photons].

<Richard Feynman> likes them, he describes the tube at <Richard Feynman Quantum Electrodynamics Lecture at University of Auckland (1979)> at one point.

It uses the <photoelectric effect> multiple times to produce a chain reaction.