SECONDARY BEAM

SECONDARY BEAM
عارضة ثانوية

English-Arabic construction engineering dictionary. 2015.

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  • secondary beam — Physics. a beam of particles of one kind selected from the group of particles produced when a beam of particles from an accelerator (primary beam) strikes a target. * * * …   Universalium

  • secondary beam — Physics. a beam of particles of one kind selected from the group of particles produced when a beam of particles from an accelerator (primary beam) strikes a target …   Useful english dictionary

  • Secondary surveillance radar — SSR antenna of Deutsche Flugsicherung at Neubrandenburg, in Mecklenburg/Western Pomerania Secondary surveillance radar (SSR)[1] is a radar system used in air traffic control (ATC), that not only detects an …   Wikipedia

  • Secondary emission — is a phenomenon where additional electrons, called secondary electrons, are emitted from the surface of a material when an incident particle (often, charged particle such as electron or ion) impacts the material with sufficient energy. The number …   Wikipedia

  • beam-pow|er tube — «BEEM POW uhr», a kind of vacuum tube for increasing power, in which the electrons flowing to the anode (plate) are focused into a beam which causes secondary electrons to be turned back …   Useful english dictionary

  • Secondary ion mass spectrometry — Infobox chemical analysis name = Secondary ion mass spectrometry caption =CAMECA IMS3f Magnetic SIMS Instrument acronym = SIMS classification =Mass spectrometry analytes = Solid surfaces, thin films related = Fast atom bombardment… …   Wikipedia

  • secondary electron — noun : an electron belonging to a beam of secondary radiation or emission (as an electron emitted from a metal surface when the surface is bombarded by high speed electrons) * * * secondary electron noun An electron in a beam of secondary… …   Useful english dictionary

  • Beam dump — A beam dump is a device that absorbs a beam. This may be a beam of photons ( light ) such as a laser beam, or a beam of electrically charged particles.Optical beam dumpsAn optical beam dump is an optical element used to absorb a beam of light.… …   Wikipedia

  • Beam tetrode — The problem of secondary emission in the tetrode tube (valve) was solved by Philips/Mullard with the introduction of a suppressor grid to produce the pentode construction. Since Philips held a patent on this design, other manufacturers were keen… …   Wikipedia

  • secondary emission — the emission of electrons (secondary electrons) from a material that is bombarded with electrons or ions. [1930 35] * * * ▪ physics       ejection of electrons (electron) from a solid that is bombarded by a beam of charged particles. Some… …   Universalium

  • secondary emission — /sɛkəndri əˈmɪʃən/ (say sekuhndree uh mishuhn) noun the emission of electrons (secondary electrons) from a metal which is struck by a beam of fast moving electrons (primary electrons) or ions from another source …   Australian-English dictionary

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