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cathode ray |
Also found in: Medical, Wikipedia, Hutchinson | 0.15 sec. |
cathode rayStream of electrons leaving the negative electrode, or cathode, in an evacuated or gas-filled discharge tube or emitted by a heated filament in certain electron tubes. Cathode rays cause fluorescent materials to luminesce and are utilized in cathode-ray oscilloscopes and television tubes (see cathode-ray tube). cathode rayIn 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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One of the electrons that is emitted in a stream from a cathode-ray tube. One of the electrons that is emitted in a stream from a cathode-ray tube. One of the electrons that is emitted in a stream from a cathode-ray tube. |
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