- absorption edge
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a discontinuity in the graph of the absorption coefficient of a substance plotted against the wavelength of x-rays being absorbed, representing the minimum energy necessary to free electrons from particular shells of the atoms of the substance. Also called absorption discontinuity, absorption limit.[1925-29]
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▪ physicsin physics, abrupt increase in the degree of absorption of electromagnetic radiation by a substance as the frequency of the radiation is increased. Absorption edges are particularly characteristic of the behaviour of X-rays (X-ray) and are related to the sharply defined levels of energy that electrons (electron) occupy in atoms (atom).* * *
Universalium. 2010.
См. также в других словарях:
absorption edge — sugerties kraštas statusas T sritis fizika atitikmenys: angl. absorption discontinuity; absorption edge; absorption limit vok. Absorptionskante, f rus. граница полосы поглощения, f; край полосы поглощения, m pranc. limite d’absorption, f … Fizikos terminų žodynas
Absorption edge — An absorption edge is a sharp discontinuity in the absorption spectrum of X rays by an element that occurs when the energy of the photon corresponds to the energy of a shell of the atom … Wikipedia
absorption edge — noun : a clear cut long wavelength boundary of an absorption band in an X ray spectrum * * * Physics. a discontinuity in the graph of the absorption coefficient of a substance plotted against the wavelength of x rays being absorbed, representing… … Useful english dictionary
absorption edge — The wavelength at which there is an abrupt discontinuity in the intensity of an absorption spectrum for electromagnetic waves, giving the appearance of a sharp edge in its photograph. The transition is due to one particular energy dissipating… … Dictionary of automotive terms
absorption edge shift — sugerties krašto poslinkis statusas T sritis fizika atitikmenys: angl. absorption edge shift vok. Verschiebung der Absorptionskante, f rus. смещение края полосы поглощения, n pranc. décalage de limite d’absorption, m … Fizikos terminų žodynas
intrinsic absorption edge — savosios sugerties kraštas statusas T sritis fizika atitikmenys: angl. intrinsic absorption edge vok. Eigenabsorptionskante, f rus. край собственного поглощения, m pranc. bord d’absorption intrinsèque, m … Fizikos terminų žodynas
absorption discontinuity — sugerties kraštas statusas T sritis fizika atitikmenys: angl. absorption discontinuity; absorption edge; absorption limit vok. Absorptionskante, f rus. граница полосы поглощения, f; край полосы поглощения, m pranc. limite d’absorption, f … Fizikos terminų žodynas
absorption limit — sugerties kraštas statusas T sritis fizika atitikmenys: angl. absorption discontinuity; absorption edge; absorption limit vok. Absorptionskante, f rus. граница полосы поглощения, f; край полосы поглощения, m pranc. limite d’absorption, f … Fizikos terminų žodynas
absorption discontinuity — See absorption edge … Dictionary of automotive terms
Absorption cross section — is a measure for the probability of an absorption process. More generally, the term cross section is used in physics to quantify the probability of a certain particle particle interaction, e.g., scattering, photoabsorption, etc. (Note that light… … Wikipedia
