cathode ray


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cathode ray

[′kath‚ōd ¦rā]
(electronics)
A stream of electrons, such as that emitted by a heated filament in a tube, or that emitted by the cathode of a gas-discharge tube when the cathode is bombarded by positive ions.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

cathode ray

In the early part of the 20th century, it was the first name given to electron beams emitted from a negatively charged cathode in a vacuum tube. The term has been used ever since. See CRT.
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References in periodicals archive ?
It added: "Television cathode ray tubes are potentially dangerous because they are vacuum sealed and can implode."
The notification must include contact information about the exporter, the recycler and an alternate recycler as well a description of the manner in which the cathode ray tubes will be recycled, means of transport, total quantity of cathode ray tubes and information about transit countries the items will pass through.
Government figures revealed that the department intercepted a total of 877 import shipments to Hong Kong from 2006 to October 2008, of which 382 shipments concerned illegal activities, such as containing waste cathode ray tubes, waste batteries and metal sludge.
CUTLINE: (1) A worker disassembles a cathode ray tube for recycling at ElectroniCycle in Gardner yesterday.
"In 1964, he wrote a program for General Motors--where he worked at the time--that used a cathode ray tube, a light pen, and an alphanumeric keyboard.
Townsend's report, RCRA Toxicity Characterization of Computer CPUs and Other Discarded Electronic Devices, expanded on his earlier research on cathode ray tubes (CRTs) used in computer monitors and televisions.
A replacement for current F/A-18C/D Hornet and AV-8B Harrier displays that are based on a cathode ray tube, the new high-resolution liquid crystal displays provide a clear view in extreme lighting conditions and are compatible with night-vision goggles.
Rear projection TV display systems are composed of a rear projection screen, a cathode ray tube array with red, green and blue tubes, and a series of mirrors to reflect the projected images onto the screen.
Bristol's Avonmouth docks, with its sea of new cars awaiting transportation, the glass offices of the RAC HQ which reflect the sun at Almondsbury in south Gloucestershire and the JT Nex cathode ray tube factory near West Bromwich are just some of the sights being immortalised by Mike Jackson, 57, in his shock hit, the M5 Sights Guide which was launched in November.
Marking a significant change in the television segment, Sony said it was ending production of cathode ray tube TVs in Japan while pouring more effort into flat-panel technologies.
To help patrons cope with a state ban on smoking in restaurants, Larry Wald, owner of the Cathode Ray Club in Fort Lauderdale, Fla., created the "nicotini" cocktail.
Nine of 30 cathode ray tubes from color computer monitors passed the standard shredded-parts test even though separate tests have shown that most of these tubes contain huge amounts of lead (SN: 11/4/00, p.