Dictionary
photomultiplier tube
noun pho·to·mul·ti·pli·er tube \ˌfō-tō-ˈməl-tə-ˌplī(-ə)r-\
Definition of PHOTOMULTIPLIER TUBE
: a vacuum tube that detects light especially from dim sources through the use of photoemission and successive instances of secondary emission to produce enough electrons to generate a useful current —called also photomultiplier
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First Known Use of PHOTOMULTIPLIER TUBE
1941
Medical Dictionary
photomultiplier tube
noun pho·to·mul·ti·pli·er tube \ˌfōt-ō-ˈməl-tə-ˌplī(-ə)r-\
Medical Definition of PHOTOMULTIPLIER TUBE
: a vacuum tube that detects light especially from dim sources through the use of photoemission and successive instances of secondary emission to produce enough electrons to generate a useful current—called also photomultiplier
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