photoionization
noun Date: 1914 ionization (as in the ionosphere) of a molecule or atom caused by absorption of radiant energy • photoionize transitive verb

New Collegiate Dictionary. 2001.

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  • photoionization — [fōt΄ō ī΄ə nə zā′shən] n. the liberation of one or more electrons from a material as a result of radiation …   English World dictionary

  • photoionization — fotojonizavimas statusas T sritis radioelektronika atitikmenys: angl. photoionization vok. Fotoionisation, f rus. фотоионизация, f pranc. photo ionisation, f …   Radioelektronikos terminų žodynas

  • photoionization — fotojonizavimas statusas T sritis chemija apibrėžtis Fotonus sugėrusių atomų ar molekulių jonizavimas. atitikmenys: angl. photoionization rus. фотоионизация …   Chemijos terminų aiškinamasis žodynas

  • photoionization — fotojonizacija statusas T sritis fizika atitikmenys: angl. photoionization vok. Photoionisation, f rus. фотоионизация, f pranc. photoionisation, f …   Fizikos terminų žodynas

  • photoionization — /foh toh uy euh neuh zay sheuhn/, n. Physics. the phenomenon in which the absorption of electromagnetic radiation by an atom in a gas induces the atom to emit a bound electron and thereby become ionized. [1910 15; PHOTO + IONIZATION] * * * …   Universalium

  • photoionization — pho•to•i•o•ni•za•tion [[t]ˌfoʊ toʊˌaɪ ə nəˈzeɪ ʃən[/t]] n. phs the ionization of an atom of gas through loss of a bound electron induced by absorption of a photon • Etymology: 1910–15 …   From formal English to slang

  • photoionization — /foh toh uy euh neuh zay sheuhn/, n. Physics. the phenomenon in which the absorption of electromagnetic radiation by an atom in a gas induces the atom to emit a bound electron and thereby become ionized. [1910 15; PHOTO + IONIZATION] …   Useful english dictionary

  • Photoionization mode — A photoionization mode gives rise to a photoionization pattern, having very specific characteristics in terms of photoionization spatial distribution and density, as well as relative yields of photolytic species. A particular photoionization mode …   Wikipedia

  • Photoionization detector — A photoionization detector or PID is a type of gas detector. Typical photoionization detectors measure volatile organic compounds and other gases in concentrations from 1 parts per billion to 10 000 parts per million (ppm). The photoionizaton… …   Wikipedia

  • photoionization detector — (PID)    A type of detector used in chromatography which employs ultraviolet radiation rather than a flame to ionize compounds as they pass through a detector. Photoionization detectors are particularly sensitive to aromatic compounds …   Forensic science glossary

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