Medical Dictionary, © 2009 … a photoemissive device in which the absorption of a photon results in the emission of an electron Bitte beachten Sie, dass alle Definitionen in alphabetischer Reihenfolge aufgeführt sind.Sie können rechts auf Links klicken, um detaillierte Informationen zu jeder Definition anzuzeigen, einschließlich Definitionen in Englisch und Ihrer Landessprache. The SiPM features low-voltage operation, insensitivity to magnetic fields, mechanical robustness and excellent uniformity of response. Definition: Device for producing amplified signal from a photo-detector. The prime features of the circular-cage are compactness and fast time response. Photomultiplier tubes (PMTs) are a photon detection device that uses the photoelectric effect combined with secondary emission to convert light into an electrical signal. Photomultiplier tubes (often abbreviated as PMT) make use of this external photoelectric effect and are superior in response speed and sensitivity (low-light-level detection). • It is one of the class of vacuum tubes also known as vacuum phototube. Design. They have a high internal gain and are sensitive detectors for low-intensity applications such as fluorescence spectroscopy. In radiography, an electronic vacuum tube designed to convert light photons into electrical pulses. This photon is multiplied in a photomultiplier tube which converts light into an electrical signal. Scintillation Counter – Principle of Operation. A photomultiplier absorbs light emitted by the scintillator and re-emit it in the form of electrons via the photoelectric effect. photomultiplier tube definition in English dictionary, photomultiplier tube meaning, synonyms, see also 'photometer',photometrically',photopolymer',photonuclear'. When light is incident on the photocathode, it emits electrons into the vacuum tube. The side-on type re-ceives incident light through the side of the glass bulb, while in the head-on type, it is received through the end of the glass bulb. Figure 2-1 shows the schematic construction of a photomultiplier tube. Enrich your vocabulary with the English Definition dictionary Definition of photomultiplier tube (PMT) Photomultiplier tubes (PMTs) convert photons to an electrical signal. What is Photomultiplier Tube (PMT)? photomultiplier tube. Definition: Device for producing amplified signal from a photo-detector. A photomultiplier is a device that converts incident photons into an electrical signal.. Definition of photomultiplier in the Definitions.net dictionary. (Keywords: automation * microarrays * optics), Atom tinkerer's paradise: innovations to atom-imaging microscopes create labs on tips, Photon Amplification By Stimulated Emission of Radiation :-), Photon Assisted Scanning Tunnel Microscopy. WikiMatrix. photomultiplier tube Also contains definitions of: channel photomultiplier tube, strip dynode photomultiplier tube A vacuum phototube with additional amplification by electron multiplication. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. https://medical-dictionary.thefreedictionary.com/photomultiplier+tube, a detector that amplifies a signal (by as much as 10. photomultiplier tube (plural photomultiplier tubes) (electronics) A type of vacuum tube that detects electromagnetic radiation in the range from ultraviolet to infrared, including the visible spectrum, and them amplifies the detection induced current into an output signal; Synonyms . Search photomultiplier tube and thousands of other words in English definition and synonym dictionary from Reverso. photomultiplier tube. : Photomultiplier Tubes – Basics and Applications. In radiography, an electronic vacuum tube designed to convert light photons into electrical pulses. The envelope of the photomultiplier is typically quartz; only wavelengths that can be tranmitted through the window to the photocathode can be detected. The photomultiplier tube converts the light into an electrical signal, and the shape of the electrical pulse reveals which layer is flashing, and thus which type of radiation was detected. Photomultiplier Tubes (PMT) PMT is the technology state of the art at present. Examples of how to use “photomultiplier” in a sentence from the Cambridge Dictionary Labs What made you want to look up photomultiplier tube? PHOTONIS has … Giga-fren. See more. A channel photomultiplier tube photocathode consists of a @C00970@ electron multiplier (CEM) system for the photoelectrons, and an @A00370@ to collect the final electron current. PHOTO MULTIPLIERS BY, MD ANAS AHMAD 2. en.wiktionary.2016 [noun] plural of [i]photomultiplier tube[/i] Example sentences with "photomultiplier tubes", translation memory. PMT (abbreviation) Hypernyms . Photomultiplier tubes (photomultipliers or PMT s for short), members of the class of vacuum tubes, and more specifically vacuum phototubes, are extremely sensitive detectors of light in the ultraviolet, visible, and near-infrared ranges of the electromagnetic spectrum. Photomultiplier Tubes (PMT) PMT is the technology state of the art at present. 'All Intensive Purposes' or 'All Intents and Purposes'? * Consists of a vaccum tube with a photocathode followed by a cascade of cathodes. • It is photo-emissive device in which absorption of photon results in emission of electron. What does photomultiplier mean? Build a city of skyscrapers—one synonym at a time. Definition of Photomultiplier Tube (PMT): A part of the PET detector that receives the electromagnetic energy from the scintillator cristal and transforms that energy into electric pulses. Photomultiplier tubes (PMTs) are a photon detection device that uses the photoelectric effect combined with secondary emission to convert light into an electrical signal. Source: wikipedia.org License: Public Domain. Photomultiplier Tubes (PMTs) Light (photons) are converted into photoelectrons by absorbing them in a thin photocathode layer inside a (glass) vacuum tube. PHOTOMULTIPLIER TUBES principles & applications Re-edited September 2002 by S-O Flyckt* and Carole Marmonier**, Photonis, Brive, France *Email: so.flyckt@photonis.com **Email: c.marmonier@photonis.com i. FOREWORD For more than sixty years, photomultipliers have been used to detect low-energy photons in the UV to visible range, high-energy photons (X-rays and gamma rays) … Photomultipliers are used to measure any process which directly or indirectly emits light. ... Photomultiplier. IceCube, an international observatory run by 300 scientists from 12 countries, consists of more than 5,000 sensitive, The Florida team came up with a simpler approach using a cheap, low-power laser and a common light detector called a, Post the Definition of photomultiplier tube to Facebook, Share the Definition of photomultiplier tube on Twitter, Words From 1921: 100 Years Old and Still Around. An array of these tubes is situated behind the sodium iodide crystal and may be placed directly on the crystal, connected to the crystal by light pipes, or optically coupled … Photomultiplier tube • PMTs (Photomultiplier Tubes) are used for light detection of very weak signals. These detectors work by amplifying the electrons generated by a photocathode exposed to a photon flux. A photomultiplier tube, useful for light detection of very weak signals, is a photoemissive device in which the absorption of a photon results in the emission of an electron. Information and translations of photomultiplier in the most comprehensive dictionary definitions resource on the web. The elements constituting the reader used in the chemiluminescent assays were as follows: two lasers for reaction mixture illumination; an illumination chamber; optical train with collimating lenses, filter wheel, and shutter; The BlankCell procedure serves to calibrate the chemiluminescence signal received by the, The light drives the photoelectric effect in a, Using readings from a sensitive light detector called a, So now, you're dealing with the problem of getting your signal above the noise level of the, Beth models are equipped with three detectors including a, Czerepinski notes, "that along with being designed for simultaneous acquisition of Cy3 and Cy5 the device features real-time control of a, 31 Physical Review Letters, the duo described using a sensitive, Dictionary, Encyclopedia and Thesaurus - The Free Dictionary, the webmaster's page for free fun content, Determination of sulpiride by capillary electrophoresis with end-column electrogenerated chemiluminescence detection, Quantification of DNA using the luminescent oxygen channeling assay, Dally BlankCell procedure in Elecsys 2010 improves the reproducibility of thyrotropin, free thyroxine, and triidothyronine, New, renewed, and revived confocal: higher performance and more affordable confocal microscopes now provide biologists with views into living cells that they've never had before, UV-Vis-NIR Spectrophotometer with deep measurement capabilities, Photomultiplier tube delivers high-anode sensitivity, Creating imaging platforms for discovery: in the high-tech, highly competitive world of microarray scanners, researchers and lab managers have an assortment of imaging systems to choose from ... and the race just got more crowded. 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