secondary emission multiplier tube

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• Video camera tube — In older video cameras, before the mid to late 1980s, a video camera tube or pickup tube was used instead of a charge coupled device (CCD) for converting an optical image into an electrical signal. Several types were in use from the 1930s to the… …   Wikipedia

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• Electron multiplier — Continuous dynode electron multiplier An electron multiplier is a vacuum tube structure that multiplies incident charges.[1] In a process called secondary emission, a single electron can, when bombarded on secondary emissive material, induce… …   Wikipedia

• electron multiplier — noun a vacuum tube that amplifies a flow of electrons • Hypernyms: ↑tube, ↑vacuum tube, ↑thermionic vacuum tube, ↑thermionic tube, ↑electron tube, ↑thermionic valve * * * noun also …   Useful english dictionary

• photomultiplier tube — ▪ electronics       electron multiplier tube that utilizes the multiplication of electrons by secondary emission to measure low light intensities. It is useful in television camera tubes, in astronomy to measure intensity of faint stars, and in… …   Universalium

• electron multiplier — Electronics. a vacuum tube containing a number of dynodes that serve to amplify the flow of electrons from the cathode by means of secondary emission. [1935 40] * * * …   Universalium

• electron multiplier — elec′tron mul tiplier n. elo elm a vacuum tube in which the flow of electrons from the cathode is amplified by secondary emission • Etymology: 1935–40 …   From formal English to slang

• Photomultiplier — tubes (photomultipliers or PMTs for short), members of the class of vacuum tubes, and more specifically phototubes, are extremely sensitive detectors of light in the ultraviolet, visible, and near infrared ranges of the electromagnetic spectrum.… …   Wikipedia

• Zworykin, Vladimir Kosma — ▪ American engineer and inventor born July 30, 1889, Murom, Russia died July 29, 1982, Princeton, N.J., U.S.   Russian born U.S. electronic engineer, inventor, and the father of modern television.       After education at the St. Petersburg… …   Universalium

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