| cathode ray tube |
The display screen used in most monitors and television sets. An electron gun, at the back of the tube, shoots electrons at a phosphor coated screen, scanning from top to bottom, left to right. This causes the phosphor pixels to glow which creates the picture you see on the screen.
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| cathode |
The electrode of an electrolytic cell at which reduction is the principal reaction. (Electrons How toward the cathode in the external circuit.) Typical cathodic processes are cation' taking up electrons and being discharged, oxygen being reduced. and the reduction of an element or group of elements from a high Cl a lower valence state. Contrast with anode.
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| cathode r.’s |
negative particles of electricity streaming out in a vacuum tube at right angles to the surface of the cathode and away from it irrespective of the position of the anode. They move in a straight line unless deflected by a magnet. By striking on solids they generate x-rays. See also electron stream.
Ãâó: www.mercksource.com/pp/us/cns/cns_health_library.j...
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| cathode-ray t. |
a vacuum tube in which the cathode rays are accelerated as a beam to form luminous spots on a fluorescent screen.
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| cathode stream |
Negatively charged electrons emitted from a cathode and accelerated in a straight line to interact with an anode. X-ray photons are then produced. SEE: Bremsstrahlung radiation; ray, cathode.
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