cathode rays

cathode rays
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.

Medical dictionary. 2011.

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  • cathode rays — plural noun Streams of negatively charged particles (electrons) proceeding from the cathode of a vacuum tube • • • Main Entry: ↑cathode * * * cathode rays, the invisible streams of electrons from the cathode in a vacuum tube. When cathode rays… …   Useful english dictionary

  • cathode rays — n. streams of electrons projected from the surface of a cathode: cathode rays produce X rays when they strike solids * * * …   Universalium

  • cathode rays — n. streams of electrons projected from the surface of a cathode: cathode rays produce X rays when they strike solids …   English World dictionary

  • cathode rays — Electron E*lec tron, n. [NL., fr. Gr. h lektron. See {Electric}.] 1. Amber; also, the alloy of gold and silver, called {electrum}. [archaic] [1913 Webster] 2. (Physics & Chem.) one of the fundamental subatomic particles, having a negative charge… …   The Collaborative International Dictionary of English

  • cathode rays — katodiniai spinduliai statusas T sritis fizika atitikmenys: angl. cathode rays; Lenard rays vok. Katodenstrahlen, m; Lenard Strahlen, m rus. катодные лучи, m; лучи Ленарда, m pranc. faisceaux cathodiques, m; rayons cathodiques, m; rayons de… …   Fizikos terminų žodynas

  • cathode rays — katodiniai spinduliai statusas T sritis chemija apibrėžtis Iš katodo viena kryptimi judančių ir elektrinio lauko pagreitintų elektronų srautas. atitikmenys: angl. cathode rays rus. катодные лучи …   Chemijos terminų aiškinamasis žodynas

  • Cathode ray — Cathode rays (also called an electron beam or e beam) are streams of electrons observed in vacuum tubes, i.e. evacuated glass tubes that are equipped with at least two electrodes, a cathode (negative electrode) and an anode (positive electrode)… …   Wikipedia

  • cathode-ray tube — n a vacuum tube in which a beam of electrons is projected on a fluorescent screen to produce a luminous spot * * * a vacuum tube in which the cathode rays are accelerated as a beam to form luminous spots on a fluorescent screen …   Medical dictionary

  • cathode ray tube — ► NOUN ▪ a high vacuum tube in which cathode rays produce a luminous image on a fluorescent screen, used in televisions and visual display units …   English terms dictionary

  • cathode ray — a flow of electrons emanating from a cathode in a vacuum tube and focused into a narrow beam. [1875 80] * * * Stream of electrons leaving the negative electrode, or cathode, in an evacuated or gas filled discharge tube or emitted by a heated… …   Universalium

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