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An electronic sensing device used to detect weak electromagnetic radiation, typically light, and amplify its energy via the photoelectric effect.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(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
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˌfoʊ təˈmʌl təˌplaɪ ər)

a light detector that amplifies a photon's signal by using a photocathode and a series of electrodes to create a cascade of electrons.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
References in periodicals archive ?
We also have a world famous and unrivalled range of Photomultiplier Tubes and Modules.
Both models are equipped with three detectors: a photomultiplier tube for the UV-Vis region, and InGaAs and PbS detectors for the NIR region.
The signal, [S.sub.f]([[lambda].sub.0]), of an instrument (photomultiplier tube or CCD) can be modeled using Eq.
12 when a chain reaction destroyed 7,000 of the 11,000 photomultiplier (PMT) tubes installed in the system to collect Cerenkov light for neutrino study.
The photomultiplier tubes--422 of them so far--are the eyes of the Antarctic Muon and Neutrino Detector Array (AMANDA), an instrument whose mission is to detect elusive subatomic particles known as neutrinos arriving from space (SN: 10/5/91, p.
The heart of the unit is a photomultiplier tube descended from the light-sensitive devices pioneered by Jakob Kunz and Joel Stebbins early in this century (S&T: May 1992, page 496).
We have a range of high-gain photomultiplier tubes specifically designed for single photon counting applications.
The C9143 and C9144 thermoelectric coolers can improve the signal-to-noise (S/N) ratio of 28-mm (1 1/8 inch) diameter side-on photomultiplier tubes (PMTs).
The University of Tokyo said Tuesday it was continuing investigations into an accident Monday at its cosmic ray research body in Gifu Prefecture where more than half of the 11,000 photomultiplier tubes (PMTs) attached to a large neutrino detector were found broken.
31 Physical Review Letters, the duo described using a sensitive photomultiplier tube and lenses to collect light from a metal sample as it was scanned with the STM tip.
Meridian's top-of-the-line TR 880 has five simultaneous photomultiplier tubes operating in conjunction with four individually controlled laser lines.