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exciting radiation

См. также в других словарях:

  • radiation — radiational, adj. /ray dee ay sheuhn/, n. 1. Physics. a. the process in which energy is emitted as particles or waves. b. the complete process in which energy is emitted by one body, transmitted through an intervening medium or space, and… …   Universalium

  • Electromagnetic radiation — Electromagnetism Electricity · …   Wikipedia

  • Neutron radiation — is a kind of ionizing radiation which consists of free neutrons. A result of nuclear fission or nuclear fusion, it consists of the release of free neutrons from atoms, and these free neutrons react with nuclei of other atoms to form new isotopes …   Wikipedia

  • Fluorescence — Fluorescent minerals emit visible light when exposed to ultraviolet light Fluorescence is the emission of light by a substance that has absorbed light or other electromagnetic radiation of a different wavelength.[1] It is a form of luminescence.… …   Wikipedia

  • analysis — /euh nal euh sis/, n., pl. analyses / seez /. 1. the separating of any material or abstract entity into its constituent elements (opposed to synthesis). 2. this process as a method of studying the nature of something or of determining its… …   Universalium

  • phosphorescence — /fos feuh res euhns/, n. 1. the property of being luminous at temperatures below incandescence, as from slow oxidation in the case of phosphorus or after exposure to light or other radiation. 2. a luminous appearance resulting from this. 3. any… …   Universalium

  • stokes' law — noun Usage: usually capitalized S Etymology: after Sir George G. Stokes 1. : a law in physics: the frequency of luminescence excited by radiation does not exceed that of the exciting radiation 2. : a law in physics: the force required to move a… …   Useful english dictionary

  • photochemical reaction — Chemical reaction initiated by absorption of energy in the form of visible (light), ultraviolet, or infrared radiation. Primary photochemical processes occur as an immediate result, and secondary processes may follow. The most important example… …   Universalium

  • Stokes lines — ▪ physics       radiation of particular wavelengths present in the line spectra associated with fluorescence and the Raman effect (q.v.), named after Sir George Gabriel Stokes, a 19th century British physicist. Stokes lines are of longer… …   Universalium

  • Stokes line — is named after Sir George Gabriel Stokes. It is the radiation of particular wavelengths present in the line spectra associated with fluorescence and the Raman scattering. Stokes lines are of longer wavelength than that of the exciting radiation… …   Wikipedia

  • phosphorescence — (1) Emission of light following absorption of radiation. Emitted light is of longer wavelength than the exciting radiation and is a result of decay of electrons from the triplet to the ground state. Lasts longer than fluorescence (electron decay… …   Dictionary of molecular biology

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