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cathode ray
(redirected from Cathode rays)

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cathode ray

Stream of fast-moving electrons that travel from a cathode (negative electrode) towards an anode (positive electrode) in a vacuum tube. They carry a negative charge and can be deflected by electric and magnetic fields. Cathode rays focused into fine beams of fast electrons are used in cathode-ray tubes, the electrons' kinetic energy being converted into light energy as they collide with the tube's fluorescent screen. The electrons are emitted from the heated metal cathode by a process called thermionic emission.



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? Mentioned in ? References in periodicals archive
 
Cathode rays emit impulses that activate screens of televisions and computer monitors.
Electron beam processing of elastomers by Drobny, Jiri George / Rubber World
It made us think about the computer and all the cathode rays you're bombarded with.
Jennifer and Kevin McCoy. (Openings) by Frankel, David / Artforum International
When not avidly immersed in ER's benign cathode rays, one half of the national brain agonized over the dystopian vision put forth by Professor Charles Murray and the late Richard Herrnstein in their best-seller The Bell Curve: America, apparently, is becoming a society hopelessly polarized between a "cognitive elite" and a growing, irredeemable underclass of criminal types with submoronic 75 IQ's.
Baby in the house by Hoberman, J. / Artforum International
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