electron beam

      stream of electrons (as from a betatron) generated by heat ( thermionic emission), bombardment of charged atoms or particles (secondary electron emission), or strong electric fields (field emission). Electrons may be collimated by holes and slits, and, because they are electrically charged, they may be deflected, focused, and energized by electric and magnetic fields. Electron beams are used chiefly in research, technology, and medical therapy to produce X rays (X-ray) and images on television screens, oscilloscopes (cathode-ray oscilloscope), and electron microscopes (electron microscope).

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Universalium. 2010.

Look at other dictionaries:

  • Electron Beam —   [engl.], Elektronenstrahl …   Universal-Lexikon

  • electron beam —  Electron Beam  Электронный луч   Пучок электронов, движущийся в одном направлении с одинаковой скоростью …   Толковый англо-русский словарь по нанотехнологии. - М.

  • electron beam — elektronų pluoštas statusas T sritis fizika atitikmenys: angl. electron beam; electronic beam vok. Elektronenbündel, n rus. электронный пучок, m pranc. faisceau d’électrons, m; faisceau électronique, m …   Fizikos terminų žodynas

  • electron beam — elektroninė spinduliuotė statusas T sritis fizika atitikmenys: angl. electron beam; electron rays vok. Elektronenstrahl, m; Elektronenstrahlen, m rus. электронное излучение, n; электронные лучи, m pranc. rayonnement électronique, m …   Fizikos terminų žodynas

  • electron beam — noun a group of nearly parallel lines of electromagnetic radiation • Syn: ↑beam, ↑ray • Derivationally related forms: ↑ray (for: ↑ray) • Hypernyms: ↑electromagnetic ra …   Useful english dictionary

  • electron beam — shaft of electrons moving at high speed in the same direction …   English contemporary dictionary

  • electron beam — /əˌlɛktrɒn ˈbim/ (say uh.lektron beem) noun a cathode ray, especially one which is amplified and directed for use in irradiation …   Australian English dictionary

  • electron beam — A stream of electrons (small negatively charged particles found in atoms) that can be used for radiation therapy …   English dictionary of cancer terms

  • Electron beam lithography — (often abbreviated as e beam lithography) is the practice of scanning a beam of electrons in a patterned fashion across a surface covered with a film (called the resist),cite book |last= McCord |first=M. A. |coauthors=M. J. Rooks |title=… …   Wikipedia

  • Electron beam induced deposition — (EBID) is a process of decomposing gaseous molecules by electron beam leading to deposition of non volatile fragments onto a nearby substrate. Process Focused electron beam of scanning electron microscope (SEM) or scanning transmission electron… …   Wikipedia

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