photomultiplier

pho·to·mul·ti·pli·er

P0265750 (fō′tō-mŭl′tə-plī′ər)n. An electronic sensing device used to detect weak electromagnetic radiation, typically light, and amplify its energy via the photoelectric effect.

photomultiplier

(ˌfəʊtəʊˈmʌltɪˌplaɪə) n (General Physics) a device sensitive to electromagnetic radiation, consisting of a photocathode, from which electrons are released by incident photons, and an electron multiplier, which amplifies and produces a detectable pulse of current

pho•to•mul•ti•pli•er

(ˌfoʊ təˈmʌl təˌplaɪ ər)

n. a light detector that amplifies a photon's signal by using a photocathode and a series of electrodes to create a cascade of electrons. [1935–40]

Translations

fotomultiplicadorphotomultiplicateur

photomultiplier

photomultiplier:

see photoelectric cellphotoelectric cell
or photocell,
device whose electrical characteristics (e.g., current, voltage, or resistance) vary when light is incident upon it. The most common type consists of two electrodes separated by a light-sensitive semiconductor material.
..... Click the link for more information. .

photomultiplier

(foh-toh-mul -tă-plÿ-er) (photomultiplier tube; phototube) An electronic device used to convert a low-intensity light signal into an electrical signal and to amplify this signal very considerably. It contains a photocathode from which electrons are liberated by the incident light photons. The electrons are accelerated down an evacuated tube by a series of positively charged electrodes to which an increasingly high potential is applied. At each electrode a number of additional electrons are released by each impacting electron (by secondary emission). The electrons are all collected at the final electrode in the chain, which is held at a very high potential, and a large current pulse is produced.

photomultiplier

[¦fōd·ō′məl·tə‚plī·ər] (electronics) multiplier phototube

单词	photomultiplier
释义	photomultiplier pho·to·mul·ti·pli·er P0265750 (fō′tō-mŭl′tə-plī′ər)n. An electronic sensing device used to detect weak electromagnetic radiation, typically light, and amplify its energy via the photoelectric effect. photomultiplier (ˌfəʊtəʊˈmʌltɪˌplaɪə) n (General Physics) a device sensitive to electromagnetic radiation, consisting of a photocathode, from which electrons are released by incident photons, and an electron multiplier, which amplifies and produces a detectable pulse of current pho•to•mul•ti•pli•er (ˌfoʊ təˈmʌl təˌplaɪ ər) n. a light detector that amplifies a photon's signal by using a photocathode and a series of electrodes to create a cascade of electrons. [1935–40] Translations fotomultiplicadorphotomultiplicateur photomultiplier photomultiplier: see photoelectric cellphotoelectric cell or photocell, device whose electrical characteristics (e.g., current, voltage, or resistance) vary when light is incident upon it. The most common type consists of two electrodes separated by a light-sensitive semiconductor material. ..... Click the link for more information. . photomultiplier (foh-toh-mul -tă-plÿ-er) (photomultiplier tube; phototube) An electronic device used to convert a low-intensity light signal into an electrical signal and to amplify this signal very considerably. It contains a photocathode from which electrons are liberated by the incident light photons. The electrons are accelerated down an evacuated tube by a series of positively charged electrodes to which an increasingly high potential is applied. At each electrode a number of additional electrons are released by each impacting electron (by secondary emission). The electrons are all collected at the final electrode in the chain, which is held at a very high potential, and a large current pulse is produced. photomultiplier [¦fōd·ō′məl·tə‚plī·ər] (electronics) multiplier phototube MedicalSeephotomultiplier tubeThesaurusSeephotoelectric cell
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