单词	photomultiplier tube
释义	photomultiplier tube noun pho·​to·​mul·​ti·​pli·​er tube ˌfō-tō-ˈməl-tə-ˌplī(-ə)r-  : 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 Example Sentences Recent Examples on the Web The xenon vats are ringed by a photomultiplier tube (PMT) array containing 500 sensitive light detectors designed to spot faint flashes of light. Robert Lea, Popular Mechanics, 29 July 2022 The tank is lined with 13,000 photomultiplier tubes, which detect brief flashes of light when neutrinos speed through the tank. Dennis Overbye, New York Times, 15 Apr. 2020 IceCube, an international observatory run by 300 scientists from 12 countries, consists of more than 5,000 sensitive photomultiplier tubes embedded in grid encompassing a cubic kilometer of ice at the South Pole. Dennis Overbye, New York Times, 12 July 2018 The Florida team came up with a simpler approach using a cheap, low-power laser and a common light detector called a photomultiplier tube, which records the total intensity of photons falling on it. Prachi Patel, Scientific American, 1 Sep. 2017 Word History First Known Use 1941, in the meaning defined above Medical Definition photomultiplier tube noun pho·​to·​mul·​ti·​pli·​er tube ˌfōt-ō-ˈməl-tə-ˌplī(-ə)r-  : 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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